2001 Corn Performance Tests

RR 675

Corn performance trials were conducted at six locations throughout Georgia and two locations in Florida in 2001. Short-season, mid-season and full-season hybrids were planted at Tifton, Plains and Midville in the coastal plain region, at Griffin in the Piedmont region, at Calhoun in the limestone valley region, at Blairsville in the mountain region and at Quincy and Jay in the panhandle region of Florida. Hybrids used for silage were evaluated at Tifton, Griffin, Calhoun and Blairsville, Georgia, and at Quincy and Ona, Florida. Preliminary experimental hybrids were tested at Tifton only.

Preface

In this research report, the results of the 2001 corn performance trials are presented. Corn performance trials were conducted at six locations throughout Georgia (see map below) and two locations in Florida in 2001. Short-season, mid-season and full-season hybrids were planted at Tifton, Plains and Midville in the coastal plain region, at Griffin in the Piedmont region, at Calhoun in the limestone valley region, at Blairsville in the mountain region and at Quincy and Jay in the panhandle region of Florida. Hybrids used for silage were evaluated at Tifton, Griffin, Calhoun and Blairsville, Georgia, and at Quincy and Ona, Florida. Preliminary experimental hybrids were tested at Tifton only.

At each site, all plots within a maturity group were seeded at the rates specified and not thinned, and the populations at harvest are included in the tables. Information concerning fertilization and cultural practices used in each trial is included with the tables. Grain harvesting was done with a small plot combine, and yields were adjusted to 15.5 percent moisture. Since data averaged over several years indicate a hybrid’s yield potential better than data from only a single year, average yields over several years are included in this report.

The least significant difference (L.S.D.) at the 10 percent level has been included in the tables to aid in comparing hybrids. If the yields of any two hybrids differ by the L.S.D. value or more, they can be considered different in yield ability. Bolding is used in the performance tables to indicate hybrids with yields statistically equal to the highest yielding entry in the test. The standard error (Std. Err.) of an entry mean is included at the bottom of each table to provide a general indicator of the level of precision of each experiment. The lower the value of the standard error of the entry mean, the more precise the experiment.

Producers of hybrid seed corn are invited to enter their hybrids in the Georgia performance trials. Most hybrids entered are commercially available in Georgia, but a few experimental hybrids are also entered. Entry of a hybrid in these trials does not imply endorsement or recommendation by the University of Georgia College of Agricultural and Environmental Sciences.

This report is one of five publications presenting the 2000-2001 performance of agronomic crops in Georgia. For information concerning the performance of other crops, refer to one of the following research reports: 2000-2001 Small Grains Performance Tests, Experiment Station Research Report #673; 2000-2001 Canola Performance Tests, Experiment Station Research Report #674; 2000 Soybean, Sorghum Grain and Silage, Grain Millet, Sunflower and Summer Annual Forages Performance Tests, Experiment Station Research Report #670; and 2000 Peanut, Corn and Tobacco Performance Tests, Experiment Station Research Report #671.

This report, along with performance test information on other crops, is also available at our web site: www.swvt.uga.edu. Additional information may be obtained by writing Dr. Anton E. Coy, Crop and Soil Sciences Department, Coastal Plain Experiment Station, Tifton, GA 31793-0748 or J. LaDon Day, Crop and Soil Sciences Department, University of Georgia, Georgia Station, Griffin, GA 30223-1797.

Map of Georgia with locations of research stations marked

The Season

The 2001 corn season was generally favorable for grain production. Wet soils in late March delayed planting in south Georgia. By mid-April, adequate moisture and above normal temperatures allowed emergence to be ahead of average. In May, normal daytime and below normal night-time temperatures favored corn growth except for above normal temperatures during the last week. Near normal temperatures and generally adequate moisture conditions allowed the crop to progress at a near average pace through June. Some areas continued to receive good rainfall during July while others began to stress. Favorable conditions allowed maturity to progress at an average pace. Some areas in southwestern Georgia were affected by leaf diseases but, in general, plant health was good. Harvest and storage insect numbers were above average in some areas.

Soil moisture conditions during the season were more nearly normal than any year since 1997. Rainfall at the six Georgia and at the Quincy, Florida, corn variety test sites is listed below.

Growing Season Rainfall¹, 2001
Month	Blairsville	Calhoun²	Griffin	Midville	Plains	Tifton	Quincy, FL
Month	—————————- inches —————————-
February	3.57	3.25	3.24	1.45	0.45	0.63	0.73
March	5.31	6.38	9.79	8.30	10.67	9.95	9.91
April	1.88	2.05	3.23	1.44	2.39	1.69	1.20
May	4.32	3.75	2.65	2.09	1.33	1.51	1.10
June	8.69	5.36	5.46	4.00	11.57	6.95	12.42
July	3.28	2.86	1.51	1.55	3.70	3.42	5.24
August	3.11	2.54	1.53	1.74	2.65	1.84	5.61
September	6.33	2.54	1.18	3.26	4.98	3.11	7.65
Total (8 mo.)	36.49	28.73	28.59	23.83	37.74	29.10	43.86
Normal (8 mo.)	38.53	37.14	35.88	34.70	34.71	35.28	–
¹ Data submitted by Dr. G. Hoogenboom, Georgia Station, Griffin, GA. ² Floyd County location.

Harvest proceeded a week behind average with generally good field conditions. Of the 280,000 planted acres, some 220,000 were harvested for a record estimated average yield of 126 bushels per acre. Total grain production for 2001 was 27.7 million bushels, an 18-percent decrease from 2000.

GRAIN TESTS RESULTS

Corn Hybrid Performance in the Coastal Plain

Coastal Plain Region, Georgia

5516

Summary of Corn Hybrid Performance, 2001 Coastal Plain Region of Georgia
Company or Brand Name	Variety	Yield
		Coastal Plain Avg	Tifton Non-Irr.	Tifton Irr.	Plains Irr.	Midville Irr.	Irrigated Avg
		—————————- bu/acre —————————-
Short-Season
Pioneer	32R25	233.7	231.3	230.8	246.0	226.8	234.5
Pioneer	31G98	231.8	202.6	237.6	261.0	225.9	241.5
Pioneer	32H58	220.0	181.2	232.3	246.9	219.8	233.0
Dyna-Gro	5515	217.4	206.1	222.9	224.7	216.1	221.2
Southern States	SS781CL	216.1	198.4	219.4	237.1	209.4	222.0
AgraTech	1701	214.9	187.3	213.8	238.9	219.5	224.1
Zimmerman	1851W	211.9	194.1	212.6	225.3	215.7	217.9
Garst/AgriPro	9707	210.9	158.7	222.4	240.5	222.1	228.3
Garst/AgriPro	8222IT	210.3	171.2	217.7	230.5	221.7	223.3
Croplan Genetics	818	209.4	184.8	179.6	236.3	237.0	217.6
Pioneer	32k61	208.5	182.3	212.7	231.5	207.6	217.3
Dyna-Gro	5518RR	203.6	195.7	201.9	209.1	207.9	206.3
DeKalb	DKC65-25	203.2	169.6	194.8	248.7	199.9	214.5
Croplan Genetics	683	201.9	187.8	202.3	218.4	199.1	206.6
AgraTech	719	200.4	184.3	191.9	220.2	205.1	205.7
Croplan Genetics	721	200.0	181.8	173.2	241.7	203.5	206.1
Dyna-Gro	5516RR	198.9	179.0	200.1	216.6	200.0	205.6
Croplan Genetics	767RR	196.0	177.3	198.9	218.4	189.5	202.3
AgriPro	9843	195.9	161.1	184.5	238.5	199.8	207.6
DeKalb	DKC66-50	191.9	162.5	189.0	212.7	203.5	201.7
AgraTech	721RR	190.9	184.5	171.5	218.7	188.9	193.0
AgraTech	787	189.8	145.2	187.9	207.3	218.7	204.6
Garst	8251IT	186.5	161.5	186.0	209.1	189.6	194.9
Funk’s G	.	.	169.9	193.5	201.8	188.4
Average		206.2	182.0	202.2	228.0	209.5	213.2
Mid and Full-Season
DeKalb	DK 697	225.6	194.5	219.3	237.8	250.7	235.9
Pioneer	3146	209.1	182.8	212.6	216.7	224.5	217.9
AgraTech	905RR	208.8	187.4	206.2	227.4	214.3	216.0
Croplan Genetics	702	207.8	194.0	210.1	204.6	222.7	212.5
DeKalb	DKC68-70	204.4	186.8	204.0	216.7	210.1	210.2
DeKalb	DK 687	203.9	186.7	202.4	215.8	210.7	209.6
NK	N91-R9 *	202.7	182.8	222.8	214.2	190.9	209.3
Golden Acres	8681FQ	198.3	185.6	199.3	216.1	192.3	202.6
Croplan Genetics	7879	197.4	169.0	198.3	217.3	205.2	206.9
Croplan Genetics	827	196.6	169.4	220.4	203.9	192.5	205.6
NK	N 8811	196.3	165.7	196.7	222.2	200.6	206.5
Garst/AgriPro	8288	196.0	151.2	191.7	215.5	225.9	211.0
Pioneer	31R88	196.0	194.0	188.4	217.6	184.0	196.7
Golden Acres	8311	193.9	173.4	201.7	204.1	196.3	200.7
Southern States	SS882CL	193.5	143.3	199.5	210.4	220.8	210.2
NK	N 83-N5	189.9	154.7	187.6	213.7	203.6	201.6
CPES-USDA	TY005	187.0	125.1	207.7	206.2	208.9	207.6
CPES-USDA	TY004	177.2	128.2	178.2	201.7	200.6	193.5
CPES-USDA	TY001	174.0	137.2	177.4	184.5	196.8	186.2
Croplan Genetics	1167CL	165.3	112.6	180.2	196.5	172.0	182.9
CPES-USDA	TY002	159.9	121.6	156.2	180.4	181.5	172.7
CPES-USDA	TY003	153.3	135.0	154.5	155.8	167.9	159.4
*Average*		*192.6*	*162.8*	*196.1*	*208.1*	*203.3*	*202.5*
* Full-season hybrid.

Tifton, Georgia

Short-Season Corn Hybrid Performance, 2001, Nonirrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	32R25	231.3	.	107	0.46	1.3	18.8	27443	100
Dyna-Gro	5515	206.1	.	99	0.44	2.3	18.3	27116	100
Pioneer	31G98	202.6	.	105	0.44	1.3	18.7	25918	100
Southern States	SS781CL	198.4	.	99	0.42	1.5	18.0	27661	100
Dyna-Gro	5518RR	195.7	.	99	0.49	1.5	19.7	24612	100
Zimmerman	1851W	194.1	142.7	100	0.42	2.0	20.3	27661	100
Croplan Genetics	683	187.8	.	98	0.40	1.5	16.6	27443	100
AgraTech	1701	187.3	.	107	0.45	2.5	19.5	22978	100
Croplan Genetics	818	184.8	.	99	0.38	1.8	18.2	28097	100
AgraTech	721RR	184.5	.	99	0.41	2.3	18.7	26681	100
AgraTech	719	184.3	.	98	0.39	2.3	17.6	27443	100
Pioneer	32k61	182.3	144.1	100	0.42	2.8	17.9	25809	100
Croplan Genetics	721	181.8	.	96	0.40	2.5	19.6	27769	100
Pioneer	32H58	181.2	.	103	0.38	1.3	18.1	26572	100
Dyna-Gro	5516RR	179.0	.	101	0.38	1.8	18.3	26898	100
Croplan Genetics	767RR	177.3	.	97	0.39	2.0	18.7	27007	100
Garst/AgriPro	8222IT	171.2	.	96	0.42	1.5	20.2	25265	100
DeKalb	DKC65-25	169.6	.	102	0.38	1.5	18.1	25265	99
DeKalb	DKC66-50	162.5	.	99	0.36	2.0	17.1	26027	100
Garst	8251IT	161.5	.	97	0.39	1.8	19.8	25156	100
AgriPro	9843	161.1	139.6	93	0.40	1.5	18.6	25483	100
Garst/AgriPro	9707	158.7	142.5	91	0.42	1.8	18.6	24612	99
AgraTech	787	145.2	131.7	99	0.43	1.8	19.6	20365	100
Average		182.0⁴	140.1	99	0.41	1.8	18.6	26056	100
LSD at 10% Level		16.1	N.S.⁵	5	0.05	0.8	0.8	2560	–
Std. Err. of Entry Mean		6.8	4.4	2	0.02	0.3	0.3	1085	–
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 7.5%, and df for EMS = 66. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 10, 2001.
Harvested:		August 22, 2001.
Seeding Rate:		29,800 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		65 lb N, 130 lb P₂O₅, and 195 lb K₂O/acre as preplant; 128 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.

Mid- and Full-Season Corn Hybrid Performance, 2001, Nonirrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
DeKalb	DK 697	194.5	150.4	99	0.42	1.8	17.9	27007	99
Croplan Genetics	702	194.0	150.3	101	0.50	2.3	19.8	22978	100
Pioneer	31R88	194.0	.	98	0.44	2.6	18.3	26354	99
AgraTech	905RR	187.4	.	97	0.55	3.3	19.8	22869	100
DeKalb	DKC68-70	186.8	.	107	0.39	2.0	19.9	26572	100
DeKalb	DK 687	186.7	140.8	108	0.41	2.3	19.8	25374	100
Golden Acres	8681FQ	185.6	.	102	0.40	2.0	18.5	26443	100
Pioneer	3146	182.8	145.1	99	0.43	2.0	18.9	25156	99
NK	N91-R9 *	182.8	.	97	0.44	1.8	20.4	25156	100
Golden Acres	8311	173.4	.	100	0.40	2.3	18.6	25426	100
Croplan Genetics	827	169.4	.	102	0.39	2.3	21.4	26027	100
Croplan Genetics	7879	169.0	.	103	0.43	2.3	18.9	22760	100
NK	N 8811	165.7	139.5	100	0.44	1.5	20.7	22978	100
NK	N 83-N5	154.7	141.5	99	0.36	2.0	18.9	25156	100
Garst/AgriPro	8288	151.2	.	103	0.41	2.5	19.9	21780	100
Southern States	SS882CL	143.3	.	105	0.39	2.5	19.6	21236	100
CPES-USDA	TY001	137.2	.	97	0.41	2.7	20.5	20800	99
CPES-USDA	TY003	135.0	.	107	0.39	2.0	19.8	18949	97
CPES-USDA	TY004	128.2	.	100	0.35	3.3	18.4	21562	96
CPES-USDA	TY005	125.1	.	97	0.33	2.8	19.8	23087	98
CPES-USDA	TY002	121.6	.	98	0.31	2.8	18.3	22978	98
Croplan Genetics	1167CL	112.6	.	105	0.35	2.8	20.7	18513	100
Average		162.8⁴	144.6	101	0.41	2.3	19.5	23598	99
LSD at 10% Level		14.8	N.S.⁵	6	0.08	0.6	1.0	2799	2
Std. Err. of Entry Mean		6.2	4.4	3	0.04	0.3	0.4	1186	1
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 7.7%, and df for EMS = 63. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 10, 2001.
Harvested:		August 22, 2001.
Seeding Rate:		27,500 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		65 lb N, 130 lb P₂O₅, and 195 lb K₂O/acre as preplant; 128 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.

Short-Season Corn Hybrid Performance, 2001, Irrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	31G98	237.6	.	114	0.49	1.8	18.5	24720	100
Pioneer	32H58	232.3	.	108	0.48	2.3	18.3	26027	100
Pioneer	32R25	230.8	.	118	0.44	1.3	18.1	25374	100
Dyna-Gro	5515	222.9	.	100	0.53	2.0	18.4	24612	100
Garst/AgriPro	9707	222.4	202.7	102	0.52	2.3	18.7	24829	100
Southern States	SS781CL	219.4	.	98	0.50	2.0	18.8	26245	100
Garst/AgriPro	8222IT	217.7	.	100	0.53	1.8	20.0	24612	100
AgraTech	1701	213.8	.	110	0.45	2.0	19.1	25156	100
Pioneer	32k61	212.7	196.2	98	0.49	2.3	17.4	25592	100
Zimmerman	1851W	212.6	184.7	102	0.49	2.5	20.2	25265	100
Croplan Genetics	683	202.3	.	98	0.49	2.0	16.8	24394	100
Dyna-Gro	5518RR	201.9	.	101	0.48	2.3	18.7	24394	100
Dyna-Gro	5516RR	200.1	.	99	0.45	2.0	17.9	26027	100
Croplan Genetics	767RR	198.9	.	99	0.46	2.8	18.3	25374	100
DeKalb	DKC65-25	194.8	.	99	0.46	2.8	18.1	24611	100
AgraTech	719	191.9	.	98	0.46	2.8	17.6	24503	100
DeKalb	DKC66-50	189.0	.	100	0.42	2.3	18.0	25809	100
AgraTech	787	187.9	191.6	101	0.45	2.5	18.4	23849	100
Garst	8251IT	186.0	.	99	0.44	2.0	18.2	24938	100
AgriPro	9843	184.5	182.2	101	0.42	1.8	18.0	25265	100
Croplan Genetics	818	179.6	.	99	0.42	2.3	17.4	24829	100
Croplan Genetics	721	173.2	.	97	0.41	2.3	17.8	24720	100
AgraTech	721RR	171.5	.	98	0.45	3.0	18.2	22542	100
Funk’s G	5516	169.9	182.9	99	0.43	2.0	18.3	23196	100
Average		202.2⁴	190.0	101	0.47	2.2	18.3	24870	100
LSD at 10% Level		15.5	N.S.⁵	5	0.04	0.6	0.5	1590	–
Std. Err. of Entry Mean		6.6	4.0	2	0.02	0.3	0.2	674	–
¹ Yields calculated at 15.5% moisture. ² Grain quality rating: 1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 6.5%, and df for EMS = 69. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 11, 2001.
Harvested:		August 22, 2001.
Seeding Rate:		26,500 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		35 lb N, 70 lb P₂O₅, and 105 lb K₂O/acre as preplant; 212 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control; irrigated 9.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.

Mid and Full-Season Corn Hybrid Performance, 2001, Irrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
NK	N91-R9 *	222.8	.	101	0.58	2.0	19.3	22434	100
Croplan Genetics	827	220.4	.	100	0.59	2.5	20.9	22216	100
DeKalb	DK 697	219.3	204.3	116	0.49	2.3	18.4	23087	100
Pioneer	3146	212.6	185.1	102	0.53	1.5	18.5	22652	100
Croplan Genetics	702	210.1	195.6	101	0.55	1.5	19.3	22216	100
CPES-USDA	TY005	207.7	.	103	0.54	2.3	20.8	22433	99
AgraTech	905RR	206.2	.	105	0.54	2.3	18.9	21236	100
DeKalb	DKC68-70	204.0	.	112	0.49	2.3	18.9	21780	100
DeKalb	DK 687	202.4	198.6	118	0.46	2.0	18.4	21780	100
Golden Acres	8311	201.7	.	100	0.51	2.8	18.4	22869	100
Southern States	SS882CL	199.5	.	106	0.51	1.8	19.4	21671	100
Golden Acres	8681FQ	199.3	.	100	0.53	2.8	18.4	21780	100
Croplan Genetics	7879	198.3	.	103	0.53	2.0	18.9	21236	100
NK	N 8811	196.7	186.6	99	0.54	2.0	20.2	22107	100
Garst/AgriPro	8288	191.7	.	103	0.54	2.0	19.2	20364	100
Pioneer	31R88	188.4	.	99	0.51	3.5	17.7	21562	99
NK	N 83-N5	187.6	188.0	104	0.50	1.8	18.8	21018	100
Croplan Genetics	1167CL	180.2	.	103	0.49	2.0	18.5	21018	100
CPES-USDA	TY004	178.2	.	105	0.48	2.5	17.7	20147	100
CPES-USDA	TY001	177.4	.	106	0.53	2.0	19.4	18731	100
CPES-USDA	TY002	156.2	.	100	0.42	2.5	18.0	21453	100
CPES-USDA	TY003	154.5	.	105	0.52	2.5	19.5	16662	95
Average		196.1⁴	193.0	104	0.52	2.2	19.0	21384	100
LSD at 10% Level		14.1	N.S.⁵	7	0.05	0.7	0.6	1515	1
Std. Err. of Entry Mean		6.0	3.9	3	0.02	0.3	0.3	642	1
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating: 1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 6.1%, and df for EMS = 63. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 11, 2001.
Harvested:		August 22, 2001.
Seeding Rate:		23,500 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		35 lb N, 70 lb P₂O₅, and 105 lb K₂O/acre as preplant; 212 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control; irrigated 9.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.

Preliminary Corn Hybrid Performance, 2001, Irrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Yield¹	Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001
		-bu/acre-
NK	N91-R9	238.6	102	0.54	1.8	20.5	26136	98
Garst/AgriPro	8222IT	237.9	99	0.58	2.3	21.1	24720	97
DeKalb	DK 697	235.3	100	0.54	1.8	19.4	25701	100
Pioneer	31G98	231.6	104	0.56	2.0	19.2	23849	100
Croplan Genetics<	702	223.2	98	0.52	1.5	20.7	26354	100
NK	N 8811	219.0	100	0.52	1.5	20.9	25483	100
Pioneer	3146	219.0	101	0.49	2.0	20.4	26572	100
Garst/AgriPro	8288	217.5	100	0.58	2.3	20.4	22869	100
Zimmerman	1851W	215.0	99	0.48	1.8	20.9	26790	100
Southland Seed Co.	XM-119	209.0	130	0.56	1.6	19.8	19493	100
Southland Seed Co.	XM-115	199.9	99	0.49	2.8	18.6	24176	100
Southern States	SS80833	199.6	98	0.51	2.0	17.6	22978	100
Funk’s G	5516	198.0	102	0.47	2.0	19.2	24502	99
Dyna-Gro	5516RR	198.0	98	0.45	2.3	19.1	26354	100
AgraTech	EXP71593BtRR	196.9	99	0.48	2.0	19.6	24503	100
DeKalb	DKC65-25	194.8	101	0.43	2.5	19.0	26245	100
Croplan Genetics	767RR	191.5	99	0.47	3.3	19.4	24067	100
Southland Seed Co.	XM-118	190.7	99	0.48	2.3	19.6	23414	100
Kaystar	X1181	186.4	102	0.44	2.5	19.7	24503	99
Greenwood	780	180.5	97	0.48	2.0	19.3	23087	100
Dyna-Gro	X15548	179.0	99	0.44	1.8	21.8	24938	100
Greenwood	840	165.4	123	0.41	2.0	27.4	21562	100
Croplan Genetics	1167CL	165.1	95	0.50	2.0	20.4	22542	100
AgraTech	EXP11501	161.0	98	0.41	2.3	16.6	22978	100
AgraTech	EXP11613	160.8	99	0.49	2.3	20.8	19929	100
Greenwood	775	156.6	105	0.50	2.8	20.5	18295	100
Average		198.8⁴	102	0.49	2.1	20.1	23924	100
LSD at 10% Level		13.5	N.S.⁵	0.07	0.5	0.8	3002	N.S.
Std. Err. of Entry Mean		5.7	6	0.03	0.2	0.3	1274	1
¹Yields calculated at 15.5% moisture. ²Grain quality rating: 1 = excellent to 5 = poor. ³Grain moisture at harvest. ⁴ CV = 5.8%, and df for EMS = 75. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 10, 2001.
Harvested:		August 21, 2001.
Seeding Rate:		27,000 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		65 lb N, 130 lb P₂O₅, and 195 lb K₂O/acre as preplant; 212 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control; irrigated 9.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, and J. L. Day.

Plains, Georgia

Short-Season Corn Hybrid Performance, 2001, Irrigated Plains, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Croplan Genetics	818	237.0	.	105	0.49	2.0	21.8	28205	100
Pioneer	32R25	226.8	.	129	0.38	2.0	21.0	27552	96
Pioneer	31G98	225.9	.	106	0.46	2.5	21.5	27879	96
Garst/AgriPro	9707	222.1	216.6	100	0.53	2.5	23.2	25919	91
Garst/AgriPro	8222IT	221.7	.	99	0.53	2.5	21.6	25483	91
Pioneer	32H58	219.8	.	112	0.44	2.8	22.7	27334	98
AgraTech	1701	219.5	.	108	0.47	3.0	21.1	26245	87
AgraTech	787	218.7	209.5	103	0.48	2.8	22.5	27007	93
Dyna-Gro	5515	216.1	.	100	0.49	2.5	21.3	26681	96
Zimmerman	1851W	215.7	193.8	101	0.47	2.3	21.2	27661	93
Southern States	SS781CL	209.4	.	101	0.48	2.0	22.5	26790	92
Dyna-Gro	5518RR	207.9	.	101	0.45	2.5	20.5	27116	69
Pioneer	32k61	207.6	197.2	102	0.43	2.5	20.2	28096	100
AgraTech	719	205.1	.	100	0.46	3.0	19.9	26245	91
DeKalb	DKC66-50	203.5	.	102	0.43	2.0	21.5	27878	98
Croplan Genetics	721	203.5	.	98	0.44	3.0	21.5	28423	98
Funk’s G	5516	201.8	200.1	100	0.45	2.0	20.5	27007	98
Dyna-Gro	5516RR	200.0	.	100	0.44	2.3	22.2	27661	93
DeKalb	DKC65-25	199.9	.	103	0.42	2.8	19.9	27334	99
AgriPro	9843	199.8	190.4	104	0.42	2.0	21.3	27879	96
Croplan Genetics	683	199.1	.	98	0.43	2.0	20.2	27661	100
Garst	8251IT	189.6	.	103	0.44	2.0	21.6	25483	97
Croplan Genetics	767RR	189.5	.	99	0.43	4.0	22.0	27225	98
AgraTech	721RR	188.9	.	101	0.43	3.8	22.1	26354	97
Average		209.5⁴	201.3	103	0.45	2.5	21.4	27130	94
LSD at 10% Level		17.0	N.S.⁵	5	0.04	0.5	1.2	N.S.	9
Std. Err. of Entry Mean		7.2	4.0	2	0.02	0.2	0.5	732	4
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 6.9%, and df for EMS = 69. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 9, 2001.
Harvested:		August 24, 2001.
Seeding Rate:		29,800 seeds/acre in 30″ rows.
Soil Type:		Greenville sandy clay loam.
Soil Test:		P = Medium, K = Medium, and pH = 6.4.
Fertilization:		105 lb N, 80 lb P₂O₅, and 80 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, and rototilled; Starfire, Prowl, and Aatrex used for weed control; irrigated 8.0 inches.
Test conducted by A. E. Coy, M. D. Pippen, R. R. Pines, R. Brooke, and T. Hancock.

Mid and Full-Season Corn Hybrid Performance, 2001, Irrigated Plains, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
DeKalb	DK 697	250.7	223.2	103	0.53	2.8	21.2	27661	98
Garst/AgriPro	8288	225.9	.	102	0.52	3.5	22.0	25810	99
Pioneer	3146	224.5	196.4	105	0.52	2.5	20.5	24503	99
Croplan Genetics	702	222.7	204.4	100	0.51	2.0	21.3	26463	93
Southern States	SS882CL	220.8	.	102	0.47	2.5	20.6	27334	96
AgraTech	905RR	214.3	.	102	0.52	2.8	21.5	24611	86
DeKalb	DK 687	210.7	197.1	111	0.44	3.3	21.3	26027	83
DeKalb	DKC68-70	210.1	.	120	0.42	2.8	22.2	25700	92
CPES-USDA	TY005	208.9	.	103	0.53	3.5	23.7	24067	98
Croplan Genetics	7879	205.2	.	101	0.48	2.0	20.8	25483	90
NK	N 83-N5	203.6	196.8	106	0.44	2.3	22.8	26463	82
NK	N 8811	200.6	183.8	100	0.50	2.3	22.8	24394	95
CPES-USDA	TY004	200.6	.	102	0.50	4.0	21.0	23414	93
CPES-USDA	TY001	196.8	.	105	0.48	2.5	23.1	24067	98
Golden Acres	8311	196.3	.	101	0.49	3.3	21.6	23958	97
Croplan Genetics	827	192.5	.	102	0.47	2.3	23.3	24502	90
Golden Acres	8681FQ	192.3	.	100	0.47	3.3	22.1	25156	96
NK	N91-R9 *	190.9	.	102	0.43	2.8	21.5	25809	99
Pioneer	31R88	184.0	.	103	0.44	4.3	21.8	24720	97
CPES-USDA	TY002	181.5	.	99	0.43	4.0	21.5	25592	99
Croplan Genetics	1167CL	172.0	.	101	0.43	2.3	21.8	24067	93
CPES-USDA	TY003	167.9	.	103	0.53	3.5	22.0	18840	99
Average		203.3⁴	200.3	103	0.48	2.9	21.8	24938	94
LSD at 10% Level		18.1	9.7	5	0.04	0.6	1.5	1686	8
Std. Err. of Entry Mean		7.6	4.1	2	0.02	0.2	0.6	714	3
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 7.5%, and df for EMS = 63. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD P = 0.10).
Planted:		April 9, 2001.
Harvested:		August 24, 2001.
Seeding Rate:		28,000 seeds/acre in 30″ rows.
Soil Type:		Greenville sandy clay loam.
Soil Test:		P = Medium, K = Medium, and pH = 6.4.
Fertilization:		105 lb N, 80 lb P₂O₅, and 80 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, and rototilled; Starfire, Prowl, and Aatrex used for weed control; irrigated 8.0 inches.
Test conducted by A. E. Coy, M. D. Pippen, R. R. Pines, R. Brooke, and T. Hancock.

Midville, Georgia

Short-Season Corn Hybrid Performance, 2001, Irrigated Midville, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	31G98	261.0	.	118	0.47	1.0	19.5	28096	98
DeKalb	DKC65-25	248.7	.	105	0.46	2.0	19.6	29948	100
Pioneer	32H58	246.9	.	110	0.45	1.5	19.9	29403	98
Pioneer	32R25	246.0	.	120	0.42	1.8	19.5	28641	99
Croplan Genetics	721	241.7	.	100	0.49	2.5	19.7	28858	99
Garst/AgriPro	9707	240.5	219.0	102	0.48	1.8	19.7	29077	99
AgraTech	1701	238.9	.	125	0.42	1.8	22.7	28314	98
AgriPro	9843	238.5	202.8	104	0.49	1.5	19.7	27770	100
Southern States	SS781CL	237.1	.	101	0.47	1.5	20.4	30057	99
Croplan Genetics	818	236.3	.	104	0.46	1.3	21.0	29403	100
Pioneer	32k61	231.5	201.9	101	0.47	1.8	19.5	28750	100
Garst/AgriPro	8222IT	230.5	.	102	0.49	1.5	23.7	28423	97
Zimmerman	1851W	225.3	197.1	101	0.47	1.8	20.8	28314	95
Dyna-Gro	5515	224.7	.	98	0.47	1.8	19.6	28641	98
AgraTech	719	220.2	.	100	0.46	2.3	19.4	28205	98
AgraTech	721RR	218.7	.	99	0.45	1.8	20.2	29403	100
Croplan Genetics	767RR	218.4	.	99	0.44	2.3	20.3	29730	100
Croplan Genetics	683	218.4	.	102	0.44	2.0	19.1	28205	98
Dyna-Gro	5516RR	216.6	.	104	0.43	1.5	20.2	29185	98
DeKalb	DKC66-50	212.7	.	100	0.43	2.0	21.0	30057	99
Garst	8251IT	209.1	.	111	0.42	1.8	19.8	26681	99
Dyna-Gro	5518RR	209.1	.	107	0.41	1.8	19.7	28423	97
AgraTech	787	207.3	186.8	102	0.45	1.5	22.5	27878	97
Funk’s G	5516	193.5	197.9	109	0.39	1.8	21.3	27443	99
Average		228.0⁴	200.9	105	0.45	1.7	20.3	28704	98
LSD at 10% Level		17.5	N.S.⁵	6	0.05	0.6	2.0	1590	N.S.
Std. Err. of Entry Mean		7.4	7.5	2	0.02	0.3	0.8	674	1
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 6.5%, and df for EMS = 69. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 12, 2001.
Harvested:		August 27, 2001.
Seeding Rate:		30,500 seeds/acre in 30″ rows.
Soil Type:		Dothan loamy sand.
Soil Test:		P = Medium, K = Medium, and pH = 5.7.
Fertilization:		105 lb N, 115 lb P₂O₅, and 145 lb K₂O/acre as preplant; 136 lb N/acre as sidedress.
Previous Crop:		Peanut.
Management:		Chisel plowed, subsoiled, and bedded; Atrazine used for weed control; irrigated 6.0 inches.
Test conducted by A. E. Coy, M. D. Pippen, R. Brooke, T. Hancock, and R. D. McNeill, IV.

Mid- and Full-Season Corn Hybrid Performance, 2001, Irrigated Midville, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
DeKalb	DK 697	237.8	216.2	110	0.48	1.3	21.4	27334	96
AgraTech	905RR	227.4	.	107	0.50	1.5	20.2	25483	99
NK	N 8811	222.2	203.0	102	0.48	1.3	21.1	27225	99
Pioneer	31R88	217.6	.	105	0.45	2.5	19.9	27443	99
Croplan Genetics	7879	217.3	.	105	0.47	2.0	21.3	26572	97
Pioneer	3146	216.7	200.7	102	0.45	1.0	19.5	27552	99
DeKalb	DKC68-70	216.7	.	108	0.45	1.3	19.6	26572	99
Golden Acres	8681FQ	216.1	.	107	0.44	2.3	19.5	27225	98
DeKalb	DK 687	215.8	203.9	111	0.44	1.5	19.6	26354	98
Garst/AgriPro	8288	215.5	.	100	0.53	1.8	21.2	24503	96
NK	N91-R9 *	214.2	.	102	0.46	1.8	21.4	27334	98
NK	N 83-N5	213.7	209.5	106	0.46	1.8	22.4	26898	100
Southern States	SS882CL	210.4	.	105	0.47	1.8	20.5	25700	99
CPES-USDA	TY005	206.2	.	101	0.48	2.0	21.4	25592	93
Croplan Genetics	702	204.6	195.7	101	0.45	1.8	21.5	27225	94
Golden Acres	8311	204.1	.	104	0.44	2.3	19.5	26572	99
Croplan Genetics	827	203.9	.	103	0.45	1.8	21.2	26245	97
CPES-USDA	TY004	201.7	.	107	0.46	2.5	21.2	24720	95
Croplan Genetics	1167CL	196.5	.	101	0.45	2.0	19.7	25809	100
CPES-USDA	TY001	184.5	.	107	0.47	1.8	21.1	21998	100
CPES-USDA	TY002	180.4	.	102	0.42	2.5	21.4	25701	98
CPES-USDA	TY003	155.8	.	106	0.49	2.0	20.4	17860	98
Average		208.1⁴	204.8	105	0.46	1.8	20.7	25814	98
LSD at 10% Level		18.1	8.3	N.S.⁵	0.05	0.5	1.1	1748	N.S.
Std. Err. of Entry Mean		7.7	3.5	3	0.02	0.2	0.5	740	2
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating: 1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 7.4%, and df for EMS = 63. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 12, 2001.
Harvested:		August 27, 2001.
Seeding Rate:		28,500 seeds/acre in 30″ rows.
Soil Type:		Dothan loamy sand.
Soil Test:		P = Medium, K = Medium, and pH = 5.7.
Fertilization:		105 lb N, 115 lb P₂O₅, and 145 lb K₂O/acre as preplant; 136 lb N/acre as sidedress.
Previous Crop:		Peanut.
Management:		Chisel plowed, subsoiled, and bedded; Atrazine used for weed control; irrigated 6.0 inches.
Test conducted by A. E. Coy, M. D. Pippen, R. Brooke, T. Hancock, and R. D. McNeill, IV.

Quincy, Florida

Short-Season Corn Hybrid Performance, 2001, Irrigated Quincy, Florida
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plant %
		2001	2-Yr Avg^
		— bu/acre —
Pioneer	31G98	197.1	176.5	104	0.44	2.6	15.2	24208	95
Pioneer	32H58	187.2	.	109	0.41	3.0	13.1	23043	99
Garst/AgriPro	8222IT	178.8	.	96	0.47	1.8	14.9	22254	98
Pioneer	32k61	177.4	161.8	101	0.43	2.3	13.5	22411	100
Pioneer	32R25	173.5	.	113	0.38	2.0	13.7	21936	98
Southern States	SS781CL	172.4	.	103	0.40	2.3	13.6	22885	98
Zimmerman	1851W	169.0	.	103	0.42	1.9	14.0	21385	96
Dyna-Gro	5516RR	161.8	.	105	0.38	1.9	13.2	22569	96
Croplan Genetics	767RR	156.7	.	103	0.38	3.9	13.3	21938	98
Funk’s G	5516	152.7	.	104	0.39	1.6	13.0	20252	96
AgraTech	721RR	149.7	.	99	0.39	3.4	13.4	21227	99
AgraTech	787	148.8	142.6	99	0.42	2.5	13.2	19413	100
Average		168.8⁴	160.3	103	0.41	2.4	13.7	21960	98
LSD at 10% Level		17.9	N.S.⁵	6	0.03	0.6	0.9	1823	4
Std. Err. of Entry Mean		7.5	5.1	2	0.01	0.2	0.4	761	2
^ Two-year average:2000 and 2001. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 8.9%, and df for EMS = 33. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 3, 2001.
Harvested:		August 15, 2001.
Seeding Rate:		25,500 seeds/acre in 30″ rows.
Soil Type:		Dothan sandy loam.
Soil Test:		P = Medium, K = Medium, and pH = 5.6.
Fertilization:		18 lb N, 54 lb P₂O₅, and 108 lb K₂O/acre as preplant; 174 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled and strip tilled; Aatrex, Prowl, and Permit used for weed control: irrigated 7.0 inches.
Test conducted by D. L. Wright and B. Kidd.

Mid and Full-Season Corn Hybrid Performance, 2001, Irrigated Quincy, Florida
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	2-Yr Avg
		bu/acre
DeKalb	DK 697	183.9	.	104	0.41	2.3	11.8	23437	94
NK	N 83-N5	182.4	.	106	0.42	2.8	11.3	22165	97
Pioneer	3146	180.9	.	109	0.43	1.6	12.2	20675	96
Croplan Genetics	702	179.0	.	102	0.45	1.5	12.4	21257	99
NK	N 8811	174.2	.	99	0.43	1.4	12.9	22263	95
Pioneer	31R88	167.8	.	98	0.41	3.0	12.0	22382	99
NK	N91-R9 *	167.0	.	103	0.42	2.0	12.5	20833	95
AgraTech	905RR	166.8	.	103	0.43	2.5	11.4	19965	95
Garst/AgriPro	8288	164.1	.	103	0.41	2.1	12.4	21228	97
DeKalb	DKC68-70	163.4	.	110	0.39	2.1	11.9	20596	100
Southern States	SS882CL	146.4	.	99	0.35	2.5	11.5	22333	95
Croplan Genetics	1167CL	137.4	.	101	0.38	1.8	11.6	19176	100
Average		167.8⁴	.	103	0.41	2.1	12.0	21359	97
LSD at 10% Level		16.4		8	0.03	0.8	0.5	1397	N.S.⁵
Std. Err. of Entry Mean		6.8		3	0.01	0.3	0.2	584	2
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 8.2%, and df for EMS = 33. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 3, 2001.
Harvested:		August 23, 2001.
Seeding Rate:		24,500 seeds/acre in 30″ rows.
Soil Type:		Dothan sandy loam.
Soil Test:		P = Medium, K = Medium, and pH = 5.6.
Fertilization:		18 lb N, 54 lb P₂O₅, and 108 lb K₂O/acre as preplant; 174 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled and strip tilled; Aatrex, Prowl, and Permit used for weed control: irrigated 7.0 inches.
Test conducted by D. L. Wright and B. Kidd.

Jay, Florida

Short-Season Corn Hybrid Performance, 2001, Nonirrigated Jay, Florida
Company or Brand Name	Hybrid Name	Yield¹ bu/acre	Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Erect Plants %
Zimmerman	1851W	97.6	110	0.41	2.3	16.5	99
Croplan Genetics	767RR	93.9	101	0.47	2.0	17.0	100
AgraTech	787	91.7	100	0.39	2.8	16.3	100
Pioneer	31G98	90.9	105	0.43	2.0	17.0	99
Southern States	SS781CL	87.6	106	0.40	2.8	16.2	100
AgraTech	721RR	84.7	102	0.41	2.8	14.5	100
Garst/AgriPro	8222IT	84.1	98	0.43	2.3	17.1	99
Pioneer	32k61	81.8	101	0.48	2.3	16.9	100
Dyna-Gro	5516RR	77.8	95	0.42	2.5	17.0	98
Pioneer	32H58	77.6	97	0.33	2.3	17.4	100
Funk’s G	5516	76.1	107	0.37	2.3	16.7	99
Pioneer	32R25	66.3	109	0.37	2.5	17.1	100
Average		84.2⁴	102	0.41	2.4	16.6	100
LSD at 10% Level		N.S.⁵	8	0.06	N.S.	–	N.S.
Std. Err. of Entry Mean		7.1	3	0.03	0.2	–	1
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 17.0%, and df for EMS = 33. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 6, 2001.
Harvested:		September 21, 2001.
Seeding Rate:		20,000 seeds/acre in 36″ rows.
Soil Type:		Orangeburg sandy loam.
Fertilization:		12 lb N, 36 lb P₂O₅, and 72 lb K₂O/acre as preplant; 136 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and disked; Sempra and Aatrex used for weed control; Lorsban used for insect control.
Test conducted by L. S. Dunavin and C. K. McCreeless.

Mid and Full-Season Corn Hybrid Performance, 2001, Nonirrigated Jay, Florida
Company or Brand Name	Hybrid Name	Yield¹ bu/acre	Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³%	Erect Plants %
DeKalb	DK 697	136.4	109	0.51	2.0	17.0	99
Croplan Genetics	702	118.2	110	0.46	2.0	16.8	99
NK	N 83-N5	113.5	107	0.43	2.0	16.5	97
Pioneer	3146	111.7	109	0.43	1.3	17.0	98
Garst/AgriPro	8288	105.3	101	0.48	2.3	17.0	100
DeKalb	DKC68-70	104.8	101	0.42	1.8	16.7	100
NK	N 8811	103.8	104	0.46	1.8	17.6	99
Southern States	SS882CL	101.6	106	0.40	2.0	17.0	99
Pioneer	31R88	100.8	109	0.41	2.3	16.6	100
NK	N91-R9 *	89.4	101	0.43	2.3	16.8	100
AgraTech	905RR	86.0	103	0.40	2.0	17.0	100
Croplan Genetics	1167CL	62.3	105	0.38	2.0	16.7	99
Average		102.8⁴	105	0.43	2.0	16.9	99
LSD at 10% Level		21.2	N.S.⁵	0.06	0.5	–	N.S.
Std. Err. of Entry Mean		8.8	4	0.02	0.2	–	1
Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 17.2%, and df for EMS = 33. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding* indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 6, 2001.
Harvested:		September 21, 2001.
Seeding Rate:		20,000 seeds/acre in 36″ rows.
Soil Type:		Orangeburg sandy loam.
Fertilization:		12 lb N, 36 lb P₂O₅, and 72 lb K₂O/acre as preplant; 136 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and disked; Sempra and Aatrex used for weed control; Lorsban used for insect control.
Test conducted by L. S. Dunavin and C. K. McCreeless.

Corn Hybrid Performance in the Piedmont Region

Griffin, Georgia

Short-Season Corn Hybrid Performance, 2001, Irrigated Griffin, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	2-Yr Avg*
		bu/acre
Pioneer	32H58	227.3	.	95	0.51	1.3	17.8	27413	100
Terral	TV2160Bt	226.7	.	97	0.51	1.3	18.0	26445	100
Funk’s G	5516	222.7	.	105	0.45	1.3	17.5	27090	100
Pioneer	33G26	219.0	194.4	100	0.47	1.3	18.2	27231	100
DeKalb	DKC65-25	213.5	.	101	0.49	1.3	18.3	26499	100
Croplan Genetics	767RR	213.1	.	101	0.45	1.0	18.3	27467	100
Southern States	SS781CL	212.6	.	100	0.46	1.0	17.3	26577	100
Zimmerman	1851W	212.5	.	100	0.45	1.5	17.7	27413	100
Pioneer	33J56	208.8	197.5	101	0.45	1.0	18.4	26747	100
Dyna-Gro	5516RR	207.0	.	99	0.45	1.0	18.5	27384	100
Terral	TV2140RR	206.3	.	99	0.44	1.0	18.4	27679	100
AgraTech	787	205.9	201.2	105	0.44	1.0	17.4	25932	100
AgraTech	721RR	202.7	.	94	0.44	1.3	17.6	28058	100
Garst/AgriPro	8222IT	197.6	195.0	92	0.46	1.0	17.1	26929	100
Pioneer	31G98	194.9	.	95	0.47	1.3	17.8	25410	100
Average		211.4⁴	197.0	99	0.46	1.2	17.9	26952	100
LSD at 10% Level		17.5	N.S.⁵	6	N.S.	N.S.	N.S.	N.S.	–
Std. Err. of Entry Mean		7.3	4.3	2	0.03	0.2	0.4	1101	–
* Two-year average: 1999 and 2001. ¹ Yields calculated at 15.5% moisture. ²Grain quality rating:1 = excellent to 5 = poor. ³Grain moisture at harvest. ⁴ CV = 6.9%, and df for EMS = 42. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 17, 2001.
Harvested:		August 10, 2001.
Seeding Rate:		30,000 seeds/acre in 30″ rows.
Soil Type:		Cecil sandy clay loam.
Soil Test:		P = High, K = High, and pH = 6.1.
Fertilization:		49 lb N, 98 lb P₂O₅, and 147 lb K₂O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:		Soybean
Management:		Chisel plowed and rototilled; Aatrex, Lasso, and one cultivation used for weed control; irrigated 4.0 inches.
Test conducted by P. A. Rose.

Mid and Full-Season Corn Hybrid Performance, 2001, Irrigated Griffin, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	2-Yr Avg^
		bu/acre
Southern States	SS882CL	222.4	.	98	0.55	1.0	19.8	24563	100
Croplan Genetics	1167CL	212.1	.	95	0.56	1.0	19.3	23716	100
NK	N91-R9 *	211.5	.	103	0.51	1.0	18.7	23491	100
Croplan Genetics	702	210.9	.	100	0.54	1.0	19.9	23353	100
NK	N 8811	207.7	194.0	109	0.45	1.3	19.0	24926	100
Garst/AgriPro	8288	190.9	.	105	0.43	1.0	19.7	25047	100
Pioneer	3146	189.5	.	93	0.51	1.0	19.4	24079	100
DeKalb	DK 697	174.5	.	96	0.46	1.3	18.7	23111	100
AgraTech	905RR	138.8	.	99	0.36	1.3	18.4	22846	100
Average		195.4⁴	194.0	100	0.48	1.1	19.2	23904	100
LSD at 10% Level		20.0	–	7	0.08	N.S.⁵	N.S.	N.S.	–
Std. Err. of Entry Mean		4.2	–	3	0.03	0.1	0.5	1019	–
^ Two-year average:1999 and 2001. Full-season hybrid. ¹Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 8.5%, and df for EMS = 24. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding* indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 17, 2001.
Harvested:		August 11, 2001.
Seeding Rate:		26,500 seeds/acre in 30″ rows.
Soil Type:		Cecil sandy clay loam.
Soil Test:		P = High, K = High, and pH = 6.1.
Fertilization:		49 lb N, 98 lb P₂O₅, and 147 lb K₂O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Chisel plowed and rototilled; Aatrex, Lasso, and one cultivation used for weed control; irrigated 4.0 inches.
Test conducted by P. A. Rose.

Corn Hybrid Performance in North Georgia

Calhoun, Georgia

Short-Season Corn Hybrid Performance, 2001, Nonirrigated Calhoun, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		bu/acre
Pioneer	32k61	182.2	127.9	104	0.42	1.3	17.3	24014	100
Pioneer	31G98	177.8	.	135	0.37	1.5	18.1	20691	100
Pioneer	32H58	175.4	.	124	0.41	1.5	18.2	20147	100
Pioneer	32K64	170.9	.	109	0.43	1.5	16.8	21127	100
Terral	TV2140RR	168.7	.	110	0.42	1.5	19.5	21998	100
Southern States	SS781CL	165.4	.	104	0.39	1.5	17.8	23305	100
Dyna-Gro	5515	164.1	.	103	0.41	1.0	18.1	23414	100
Garst/AgriPro	8222IT	164.0	125.1	102	0.48	1.5	21.1	19820	100
Pioneer	33G26	163.6	125.2	114	0.38	1.8	17.5	21562	100
Garst	8285	160.7	.	111	0.39	1.3	19.1	22107	100
Dyna-Gro	5518RR	159.0	.	111	0.43	1.5	20.0	20255	100
Zimmerman	1851W	159.0	.	109	0.40	1.0	21.5	22107	100
Pioneer	34B24	156.3	.	103	0.43	1.3	17.7	20691	100
Pioneer	33J56	155.7	121.6	125	0.37	1.5	18.2	19384	100
Croplan Genetics	767RR	154.2	.	102	0.44	1.0	17.9	19602	100
Garst/AgriPro	9707	152.6	.	102	0.44	1.8	18.7	20147	100
Pioneer	34B28	152.5	.	107	0.40	1.5	17.9	21127	100
AgraTech	721RR	151.5	.	101	0.42	1.0	18.9	21018	100
Pioneer	33G30	150.7	.	114	0.38	2.0	16.7	19929	100
DeKalb	DKC65-25	150.3	.	112	0.37	1.3	17.8	21018	100
Funk’s G	5516	149.4	.	108	0.42	1.5	20.0	19658	100
Garst	8251IT	145.2	.	111	0.39	1.3	20.4	20038	100
Terral	TV2160Bt	133.9	.	109	0.35	1.8	20.4	21127	100
AgraTech	787	122.5	104.7	111	0.40	1.0	21.0	16553	100
Average		157.7⁴	120.9	110	0.41	1.4	18.8	20868	100
LSD at 10% Level		19.3	N.S.⁵	6	N.S.	N.S.	1.2	N.S.	–
Std. Err. of Entry Mean		8.2	3.5	3	0.03	0.2	0.5	1360	–
¹Yields calculated at 15.5% moisture. ² Grain quality rating: 1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 10.4%, and df for EMS = 69. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 18, 2001.
Harvested:		August 29, 2001.
Seeding Rate:		26,500 seeds/acre in 30″ rows.
Soil Type:		Waynesboro loam.
Soil Test:		P = Very High, K = High, and pH = 6.3.
Fertilization:		50 lb N, 47 lb P₂O₅, and 70 lb K₂O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop:		Soybean
Management:		Subsoiled, chisel plowed, and rototilled; Aatrex and Lasso used for weed control.
Test conducted by P. A. Rose, G. Rawls, and J. Stubbs.

Mid and Full-Season Corn Hybrid Performance, 2001, Nonirrigated Calhoun, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	31R88	198.0	.	126	0.46	1.3	16.9	19602	100
DeKalb	DK 697	181.6	.	131	0.39	1.3	15.6	20691	100
Pioneer	3146	176.1	.	114	0.44	1.0	16.7	19929	100
Southern States	SS882CL	167.3	.	116	0.41	1.0	15.6	19820	100
Garst/AgriPro	8215	161.6	.	108	0.48	1.5	17.9	17969	100
NK	N91-R9 *	156.6	.	115	0.47	1.3	18.6	16771	100
Garst/AgriPro	8288	150.4	.	105	0.44	1.0	16.2	18622	100
Croplan Genetics	702	149.1	.	111	0.42	1.0	17.6	18513	100
AgraTech	905RR	143.2	.	109	0.41	1.5	16.6	18186	100
NK	N 8811	139.2	117.9	113	0.39	1.3	18.6	18186	100
Croplan Genetics	1167CL	129.6	.	112	0.41	1.0	15.8	15900	100
Average		159.3⁴	117.9	114	0.43	1.2	16.9	18562	100
LSD at 10% Level		11.1	–	9	N.S.⁵	N.S.	1.0	N.S.	N.S.
Std. Err. of Entry Mean		4.6	–	4	0.03	0.2	0.4	1176	0
* Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating: 1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 5.8%, and df for EMS = 30. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 18, 2001.
Harvested:		September 14, 2001.
Seeding Rate:		23,000 seeds/acre in 30″ rows.
Soil Type:		Waynesboro loam.
Soil Test:		P = Very High, K = High, and pH = 6.3.
Fertilization:		50 lb N, 47 lb P₂O₅, and 70 lb K₂O/acre as preplant; 100 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, chisel plowed, and rototilled; Aatrex and Lasso used for weed control.
Test conducted by P. A. Rose, G. Rawls, and J. Stubbs.

Short-Season Corn Hybrid Performance, 2001, Irrigated Calhoun, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	31G98	243.9	235.6	120	0.45	1.0	16.4	25701	99
Terral	TV2140RR	239.1	.	106	0.54	1.0	17.7	24067	100
Southern States	SS781CL	235.4	.	102	0.51	1.0	15.9	25700	99
Pioneer	33J56	232.5	225.0	104	0.49	1.0	15.6	25701	100
Pioneer	32H58	222.3	.	123	0.44	1.0	17.2	23632	100
Pioneer	32k61	216.2	216.9	102	0.48	1.0	16.8	25156	100
Pioneer	33G30	211.6	.	106	0.46	1.3	16.0	25047	100
Zimmerman	1851W	211.0	.	104	0.47	1.0	18.8	25233	99
Garst/AgriPro	8222IT	210.2	208.6	101	0.47	1.0	18.9	26027	100
Terral	TV2160Bt	206.2	.	104	0.48	1.0	18.6	24503	100
Dyna-Gro	5515	205.4	.	102	0.46	1.0	17.1	24938	99
Dyna-Gro	5518RR	205.0	.	103	0.49	1.0	17.2	23523	100
Pioneer	32K64	203.7	.	104	0.45	1.0	15.8	24507	100
DeKalb	DKC65-25	202.6	.	107	0.41	1.0	16.0	26027	100
Pioneer	34B28	200.0	.	101	0.47	1.0	16.1	23958	100
Croplan Genetics	767RR	198.1	.	101	0.44	1.0	15.6	24938	99
Pioneer	34B24	196.8	.	104	0.45	1.0	15.7	23958	100
AgraTech	721RR	194.4	.	100	0.45	1.0	16.2	24938	100
AgraTech	787	194.4	188.4	107	0.45	1.0	17.3	23163	100
Garst	8285	192.1	184.5	106	0.43	1.0	17.0	24176	100
Garst	8251IT	191.8	.	109	0.40	1.0	16.7	25483	100
Pioneer	33G26	190.2	202.4	106	0.44	1.3	16.2	23196	100
Garst/AgriPro	9707	187.5	.	103	0.43	1.0	16.4	24169	100
Funk’s G	5516	175.1	.	100	0.41	1.0	17.3	24284	100
Average		206.9⁴	208.8	105	0.46	1.0	16.8	24668	100
LSD at 10% Level		13.8	10.0	6	0.05	N.S.⁵	0.7	N.S.	N.S.
Std. Err. of Entry Mean		5.9	4.2	3	0.02	0.1	0.3	1073	0
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 5.7%, and df for EMS = 69. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 18, 2001.
Harvested:		September 13, 2001.
Seeding Rate:		30,000 seeds/acre in 30″ rows.
Soil Type:		Rome gravelly clay loam.
Soil Test:		P = Very High, K = High, and pH = 6.0.
Fertilization:		75 lb N, 90 lb P₂O₅, and 180 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, chisel plowed, and rototilled; Aatrex and Lasso used for weed control; irrigated 4.0 inches.
Test conducted by P. A. Rose, G. Rawls, and J. Stubbs.

Mid and Full-Season Corn Hybrid Performance, 2001, Irrigated Calhoun, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality²rating	Grain Moisture³%	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
NK	N91-R9 *	224.5	203.6	113	0.53	1.0	20.4	22760	100
DeKalb	DK 697	207.8	199.1	116	0.48	1.0	18.8	22216	100
Pioneer	31R88	202.0	193.3	105	0.53	1.0	18.3	21236	100
Garst/AgriPro	8288	196.5	.	101	0.49	1.0	17.3	22869	100
Pioneer	3146	196.1	.	106	0.50	1.0	17.4	21018	100
Garst/AgriPro	8215	184.4	.	104	0.44	1.8	19.0	23522	100
Southern States	SS882CL	181.1	.	109	0.41	1.3	18.0	23414	100
Croplan Genetics	702	174.9	.	103	0.50	1.0	20.2	20582	100
NK	N 8811	159.6	171.5	105	0.41	1.0	20.3	22107	100
AgraTech	905RR	151.7	.	106	0.43	1.0	18.3	19929	100
Croplan Genetics	1167CL	119.6	.	102	0.42	1.0	18.0	16444	100
Average		181.6⁴	191.9	106	0.47	1.1	18.7	21463	100
LSD at 10% Level		9.9	N.S.⁵	8	0.06	0.3	0.7	2796	N.S.
Std. Err. of Entry Mean		4.1	2.8	3	0.02	0.1	0.3	1165	0
Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 4.6%, and df for EMS = 30. ⁵ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding* indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 18, 2001.
Harvested:		September 19, 2001.
Seeding Rate:		26,500 seeds/acre in 30″ rows.
Soil Type:		Rome gravelly clay loam.
Soil Test:		P = Very High, K = High, and pH = 6.0.
Fertilization:		75 lb N, 90 lb P₂O₅, and 180 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, chisel plowed, and rototilled; Aatrex and Lasso used for weed control; irrigated 4.0 inches.
Test conducted by P. A. Rose, G. Rawls, and J. Stubbs.

Blairsville, Georgia

Short-Season Corn Hybrid Performance, 2001, Nonirrigated Blairsville, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre —
Pioneer	31G98	274.1	.	100	0.67	1.0	22.8	25289	100
Pioneer	33J56	253.9	249.8	106	0.55	1.0	20.3	26015	100
Terral	TV2140RR	246.2	.	95	0.65	1.0	23.2	24926	100
Garst/AgriPro	8222IT	245.9	.	99	0.60	1.0	22.1	25289	100
Southern States	SS781CL	244.5	.	100	0.62	1.0	20.5	23958	100
DeKalb	DKC65-25	244.4	.	100	0.52	1.0	22.2	28686	100
Pioneer	32k61	225.7	233.5	98	0.57	1.0	20.0	24200	100
Dyna-Gro	5516RR	223.8	.	103	0.52	1.0	21.9	25531	100
Zimmerman	1851W	222.7	.	101	0.56	1.0	23.3	24200	100
Croplan Genetics	767RR	222.2	.	96	0.58	1.0	21.7	24200	100
Funk’s G	5516	218.9	.	106	0.53	1.0	21.8	24079	100
Terral	TV2160Bt	209.4	.	113	0.45	1.0	21.2	25047	100
AgraTech	721RR	208.1	.	96	0.56	1.0	21.0	23232	100
AgraTech	787	206.1	204.9	100	0.54	1.0	23.2	23716	100
Average		231.8⁴	229.4	101	0.56	1.0	21.8	24883	100
LSD at 10% Level		13.1	11.7	7	0.06	–	0.9	2390	–
Std. Err. of Entry Mean		5.5	5.8	3	0.02	–	0.4	1003	–
¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 4.7%, and df for EMS = 39. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		May 7, 2001.
Harvested:		October 17, 2001
Seeding Rate:		30,000 seeds/acre in 30″ rows.
Soil Type:		Bradson clay loam.
Soil Test:		P = High, K = High, and pH = 6.2.
Fertilization:		77 lb N, 77 lb P₂O₅, and 77 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and disked; Aatrex, Bicep and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.

Mid and Full-Season Corn Hybrid Performance, 2001, Nonirrigated Blairsville, Georgia
Company or Brand Name	Hybrid Name	Yield¹		Ears/ 100 Plants no.	Ear Grain Weight lb	Grain Quality² rating	Grain Moisture³ %	Plant Population no.	Erect Plants %
		2001	3-Yr Avg
		— bu/acre-
Garst/AgriPro	8288	259.4	.	108	0.60	1.0	22.8	24488	100
AgraTech	905RR	248.2	.	101	0.66	1.0	22.3	22454	100
NK	N91-R9 *	247.5	.	105	0.59	1.0	24.9	25168	100
DeKalb	DK 697	240.1	.	112	0.54	1.0	23.2	24321	100
NK	N 83-N5	236.6	.	105	0.55	1.0	22.9	25358	100
Southern States	SS882CL	231.3	.	103	0.55	1.0	23.3	25410	100
Pioneer	31R88	222.6	.	118	0.49	1.0	23.9	24321	100
Pioneer	3146	220.6	.	115	0.53	1.0	22.1	22454	100
Croplan Genetics	702	204.3	.	100	0.51	1.0	22.8	24563	100
NK	N 8811	204.1	209.8	105	0.54	1.0	25.6	23043	100
Croplan Genetics	1167CL	185.4	.	100	0.47	1.0	22.6	24011	100
Average		227.3⁴	209.8	106	0.55	1.0	23.3	24145	100
LSD at 10% Level		12.6	–	8	0.05	–	0.6	1358	–
Std. Err. of Entry Mean		5.2	–	3	0.02	–	0.3	566	–
Full-season hybrid. ¹ Yields calculated at 15.5% moisture. ² Grain quality rating:1 = excellent to 5 = poor. ³ Grain moisture at harvest. ⁴ CV = 4.6%, and df for EMS = 30. Bolding* indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		May 7, 2001.
Harvested:		October 17, 2001
Seeding Rate:		26,500 seeds/acre in 30″ rows.
Soil Type:		Bradson clay loam.
Soil Test:		P = High, K = High, and pH = 6.2.
Fertilization:		77 lb N, 77 lb P₂O₅, and 77 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and disked; Aatrex, Bicep and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.

SILAGE TESTS RESULTS

Corn Hybrid Performance for Use as Silage

Summary of Evaluations of Corn Hybrids for Silage

Summary of Evaluations of Corn Hybrids for Silage Blairsville, Calhoun, Griffin, and Tifton, Georgia, 2001
Company or Brand Name	Hybrid No.	Maturity Class	Quality Factors¹				Dry Matter Yield
			IVDMD				Dry Matter Yield
			Fodder	Grain	Whole Plant²	Grain Por- tion %	Statewide Avg	Blairsville	Calhoun	Griffin	Tifton
			——– % ——–			Grain Por- tion %	————– tons/acre —————-
Short and Mid-Season
AgraTech	1701	M	57.0	92.2	74.3	49	11.9	13.5	10.3	12.1	11.8
AgraTech	890	M	56.4	92.1	74.1	50	.	.	.	.	9.2
AgraTech	905RR	M	57.3	93.0	74.0	47	10.7	11.0	10.3	11.0	10.6
Croplan Genetics	733Bt	S	59.9	91.7	77.0	54	9.1	9.6	7.4	9.3	10.1
Croplan Genetics	827	M	57.5	92.7	73.2	45	10.6	10.0	10.6	10.3	11.7
Croplan Genetics	DS723	S	60.3	92.8	77.7	53	.	.	.	.	9.2
Croplan Genetics	DS740	S	56.5	92.7	75.8	53	.	.	.	.	10.7
Croplan Genetics	DS820	S	53.4	93.6	76.2	57	.	.	.	.	9.7
DeKalb	DK 687	M	54.2	93.1	74.1	51	.	.	.	.	11.9
DeKalb	DK 697	M	55.5	90.7	72.6	49	11.3	11.4	9.6	12.3	11.8
DeKalb	DKC68-70	M	58.6	93.1	73.5	43	11.4	10.8	11.2	10.9	12.7
Garst/AgriPro	8215		.	.	.	45	.	.	10.1	.	.
Garst/AgriPro	8288	M	57.3	92.0	75.8	53	9.7	10.0	8.7	10.1	10.2
Golden Acres	8311	M	51.0	92.6	73.4	54	.	.	.	.	10.6
Golden Acres	8681FQ	M	49.1	92.5	72.6	54	.	.	.	.	11.6
NK	N 83-N5	M	56.3	90.7	73.8	51	.	11.1	.	.	9.7
NK	N 8811	M	51.8	91.7	72.7	52	10.5	10.8	8.9	11.1	11.3
Pioneer	31G98	S	49.2	92.5	73.0	55	10.9	11.2	9.5	11.8	11.2
Pioneer	31R88	M	52.7	90.9	72.8	53	10.7	11.1	10.1	11.1	10.6
Pioneer	33J56	S	57.5	93.2	76.0	52	10.2	10.3	9.2	11.6	9.9
Southern States	SS859CL	M	48.6	92.0	72.7	56	11.1	10.4	10.0	12.6	11.4
Zimmerman	1851W	S	51.7	93.1	72.1	49	10.9	10.6	11.5	10.2	11.2
Average			54.8	92.3	74.2	51	10.7	10.8	9.8	11.1	10.8
LSD at 10% Level			2.4	1.4	1.6	2	0.7	1.5	1.6	N.S.³	0.9
Std. Err. of Entry Mean			1.0	0.7	0.7	1	0.3	0.6	0.7	0.8	0.4
Full-Season
AgraTech	1010RR	F	60.1	92.5	74.9	45	8.8	8.5	9.1	9.7	8.1
AgriTech	1836	F	56.7	91.4	72.5	45	10.7	10.4	8.1	13.0	11.1
Greenwood	830	F	55.3	92.4	73.1	48	9.9	9.1	9.1	11.4	9.8
Greenwood	835	F	56.6	92.7	71.5	42	.	.	.	.	9.4
Greenwood	845	F	57.0	93.8	70.9	38	.	.	.	.	9.6
NK	N91-R9	F	54.1	91.0	73.6	53	11.5	12.1	12.9	9.9	11.3
Pioneer	30F33	F	56.2	92.3	71.6	42	11.5	11.6	9.6	12.9	11.9
Southern States	SS1060	F	54.7	92.3	73.0	48	9.5	9.4	9.1	10.6	9.0
Southland Geneti	SG1877	F	53.0	92.8	69.2	41	12.6	10.8	13.6	14.7	11.2
Southland Seed C	SG1836	F	56.7	92.6	72.8	45	9.4	8.0	11.4	9.1	9.0
Southland Seed C	SM-128	F	56.8	91.3	73.0	47	9.6	8.7	10.0	10.8	8.9
Southland Seed C	SM-130	F	57.9	92.8	74.7	48	.	.	.	.	7.9
Southland Seed C	SM-135	F	52.9	92.5	70.6	45	10.7	11.3	10.6	9.6	11.3
Average			56.0	92.3	72.4	45	10.4	10.0	10.4	11.2	9.9
LSD at 10% Level			3.3	1.2	2.4	5	0.6	0.9	1.5	1.4	1.3
Std. Err. of Entry Mean			1.4	0.5	1.0	2	0.3	0.4	0.6	0.6	0.5
¹ Quality factors taken from the replicated silage trial at Tifton. ² This variable is calculated to reflect the relative contribution of each component using the following formula: whole plant IVDMD = fodder IVDMD X percent fodder + grain IVDMD X percent grain. ³ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries performing equally to highest performing entry within a column based on Fisher’s protected LSD (P = 0.10).

Tifton, Georgia

Evaluation of Corn Hybrids for Silage, 2001, Irrigated Tifton, Georgia
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Plant Population no.	2-Yr Avg Dry Forage Yield tons/acre
			Dry¹	Green
			tons/acre
Short and Mid-Season
DeKalb	DKC68-70	M	12.7	27.8	45.8	43	31363	.
DeKalb	DK 687	M	11.9	25.1	47.5	51	29185	12.4
AgraTech	1701	M	11.9	23.6	50.2	49	26572	.
DeKalb	DK 697	M	11.8	22.8	51.7	49	30274	.
Croplan Genetics	827	M	11.7	25.3	46.3	45	30710	.
Golden Acres	8681FQ	M	11.6	24.3	47.9	54	29839	11.4
Southern States	SS859CL	M	11.4	23.0	49.6	56	30710	12.7
NK	N 8811	M	11.3	24.0	47.2	52	26790	12.1
Pioneer	31G98	S	11.2	24.1	46.6	55	29621	.
Zimmerman	1851W	S	11.2	21.9	51.0	49	30274	12.1
Croplan Genetics	DS740	S	10.7	19.9	53.9	53	30492	.
Golden Acres	8311	M	10.6	21.3	49.6	54	28532	11.2
AgraTech	905RR	M	10.6	21.8	48.8	47	27007	.
Pioneer	31R88	M	10.6	22.2	47.6	53	29839	11.8
Garst/AgriPro	8288	M	10.2	19.8	51.6	53	30928	.
Croplan Genetics	733Bt	S	10.1	18.8	53.7	54	27661	.
Pioneer	33J56	S	9.9	19.2	51.7	52	31146	10.9
Croplan Genetics	DS820	S	9.7	20.2	48.2	57	28967	.
NK	N 83-N5	M	9.7	17.7	54.7	51	26789	11.3
AgraTech	890	M	9.2	19.5	47.3	50	26760	10.1
Croplan Genetics	DS723	M	9.2	18.3	50.0	53	26136	.
Average			10.8²	21.9	49.6	51	29028	11.6
LSD at 10% Level			0.9	2.0	2.2	2	2564	1.0
Std. Err. of Entry Mean			0.4	0.8	0.9	1	1085	0.4
Full-Season
Pioneer	30F33	F	11.9	26.6	44.6	42	29621	11.6
NK	N91-R9	F	11.3	24.6	46.1	53	30492	12.1
Southland Seed Co.	SM-135	F	11.3	27.4	41.2	45	30274	.
Southland Genetics	SG1877	F	11.2	27.5	40.8	41	29621	12.0
AgraTech	1836	F	11.1	21.7	51.4	45	28968	12.6
Greenwood	830	F	9.9	21.4	46.0	48	28096	11.4
Greenwood	845	F	9.6	23.4	41.0	38	26354	11.1
Greenwood	835	F	9.5	22.0	42.9	42	27879	10.0
Southern States	SS1060	F	9.0	20.2	45.2	48	27225	.
Southland Seed Co.	SG1836	F	9.0	22.0	40.8	45	24829	.
Southland Seed Co.	SM-128	F	8.9	20.6	43.6	47	25700	.
AgraTech	1010RR	F	8.1	19.4	41.5	45	24638	.
Southland Seed Co.	SM-130	F	7.9	19.1	41.0	48	25800	.
Average			9.9³	22.7	43.6	45	27654	11.6
LSD at 10% Level			1.3	3.3	2.4	5	2701	N.S.⁴
Std. Err. of Entry Mean			0.5	1.4	1.0	2	1131	0.6
¹ Yields calculated at 15.5% moisture. ² CV = 7.2%, and df for EMS = 60. ³CV = 11.1%, and df for EMS = 36. ⁴ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 10, 2001.
Harvested:		August 2, 2001.
Seeding Rate:		31,600 seeds/acre in 30″ rows.
Soil Type:		Tifton loamy sand.
Soil Test:		P = High, K = Medium, and pH = 6.5.
Fertilization:		65 lb N, 130 lb P₂O₅, and 195 lb K₂O/acre as preplant; 212 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Paraplowed, subsoiled, bedded, and rototilled; Prowl, Atrazine, Permit, and Accent used for weed control; Nemacur used for nematode control; Furadan used for insect control; irrigated 9.0 inches.
Test conducted by A. E. Coy, M. D. Pippin, R. Brooke, and T. Hancock.

Griffin, Georgia

Evaluation of Corn Hybrids for Silage, 2001, Irrigated Griffin, Georgia
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Plant Population no.	2-Yr Avg Dry Forage Yield tons/acre
			Dry¹	Green
			tons/acre
Short and Mid-Season
Southern States	SS859CL	M	12.6	34.2	36.7	50	30036	9.6
DeKalb	DK 697	M	12.3	33.7	36.4	45	31517	.
AgraTech	1701	M	12.1	34.6	35.1	49	30250	.
Pioneer	31G98	S	11.8	33.1	35.6	46	29282	.
Pioneer	33J56	S	11.6	33.1	35.1	52	30734	9.1
NK	N 8811	M	11.1	32.2	34.5	49	28072	8.9
Pioneer	31R88	M	11.1	31.3	35.4	52	28704	8.9
AgraTech	905RR	M	11.0	32.4	34.0	48	26487	.
DeKalb	DKC68-70	M	10.9	32.3	33.8	45	29040	.
Croplan Genetics	827	M	10.3	34.1	30.1	46	30734	.
Zimmerman	1851W	S	10.2	30.1	33.6	43	28798	8.5
Garst/AgriPro	8288	M	10.1	26.3	38.3	57	29349	.
Croplan Genetics	733Bt	S	9.4	23.1	40.4	55	28807	.
Average			11.1²	31.6	35.3	49	29370	9.0
LSD at 10% Level			N.S.³	4.6	2.1	5	N.S.	N.S.
Std. Err. of Entry Mean			0.8	1.9	0.9	2	1431	0.7
Full-Season
Southland Genetics	SG1877	F	14.7	37.1	39.7	41	30437	10.6
AgraTech	1836	F	13.0	30.0	43.1	47	30078	.
Pioneer	30F33	F	12.9	34.7	37.2	40	31082	9.5
Greenwood	830	F	11.5	29.0	39.4	45	29040	.
Southland Seed Co.	SM-128	F	10.8	27.5	39.5	46	27497	.
Southern States	SS1060	F	10.6	29.5	35.8	45	30492	.
NK	N91-R9	F	9.9	30.0	32.9	48	32014	8.2
AgraTech	1010RR	F	9.7	25.3	38.2	42	28704	.
Southland Seed Co.	SM-135	F	9.6	27.1	35.3	41	27855	.
Southland Seed Co.	SG1836	F	9.1	26.2	34.8	43	28072	.
Average			11.2⁴	29.6	37.6	44	29527	9.4
LSD at 10% Level			1.4	2.6	2.5	2	1958	N.S.
Std. Err. of Entry Mean			0.6	1.1	2.8	2	813	0.9
¹ Yields calculated at 15.5% moisture. ² CV = 14.0%, and df for EMS = 36. ³ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. ⁴ CV = 10.2%, and df for EMS = 27. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 17, 2001.
Harvested:		Short and Mid-Season:August 3, 2001. Full-Season: August 17, 2001.
Seeding Rate:		31,000 seeds/acre in 30″ rows.
Soil Type:		Cecil sandy clay loam.
Soil Test:		P = High, K = High, and pH = 7.1.
Fertilization:		49 lb N, 98 lb P₂O₅, and 147 lb K₂O/acre as preplant; 200 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and rototilled; Aatrex, Lasso, and one cultivation used for weed control; irrigated 4.0 inches.
Test conducted by P. A. Rose.

Calhoun, Georgia

Evaluation of Corn Hybrids for Silage, 2001, Irrigated Calhoun, Georgia
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Plant Population no.	2-Yr Avg Dry Forage Yield tons/acre
			Dry¹	Green
			tons/acre
Short and Mid-Season
Zimmerman	1851W	S	11.6	31.3	36.9	42	25483	10.9
DeKalb	DKC68-70	M	11.2	29.3	38.3	50	23523	.
Croplan Genetics	827	M	10.6	30.6	35.0	44	23740	.
AgraTech	905RR	M	10.3	26.6	38.7	46	24612	.
AgraTech	1701	M	10.3	29.5	34.7	45	25203	.
Garst/AgriPro	8215	M	10.1	31.7	31.8	45	23305	.
Pioneer	31R88	M	10.1	27.8	36.4	48	25700	10.9
Southern States	SS859CL	M	10.1	28.4	35.4	49	23523	9.8
DeKalb	DK 697	M	9.6	23.8	40.7	46	24394	.
Pioneer	31G98	S	9.5	27.8	34.8	50	22216	.
Pioneer	33J56	S	9.2	25.8	35.5	49	23523	9.5
NK	N 8811	M	9.0	27.2	33.0	43	21780	9.6
Garst/AgriPro	8288	M	8.7	21.8	39.8	51	24974	.
Croplan Genetics	733Bt	S	7.4	21.0	35.3	51	23185	.
Average			9.8²	27.3	36.2	47	23940	10.2
LSD at 10% Level			1.6	3.4	4.2	3	N.S.³	1.1
Std. Err. of Entry Mean			0.7	1.4	1.8	1	1187	0.4
Full-Season
Southland Genetics	SG1877	F	13.7	28.3	48.3	41	23087	12.6
NK	N91-R9	F	12.9	26.6	48.5	44	25918	11.3
Southland Seed Co.	SG1836	F	11.4	24.4	46.4	42	24313	.
Southland Seed Co.	SM-135	F	10.6	24.3	44.1	41	23087	.
Southland Seed Co.	SM-128	F	10.0	21.5	46.6	41	23740	.
Pioneer	30F33	F	9.6	27.4	35.0	37	22869	9.7
Greenwood	830	F	9.2	18.5	50.2	46	22861	.
AgraTech	1010RR	F	9.1	20.6	44.7	43	20691	.
Southern States	SS1060	F	9.1	19.5	47.0	44	23152	.
AgraTech	1836	F	8.1	14.1	56.9	44	25209	.
Average			10.4⁴	22.5	46.8	42	23493	11.2
LSD at 10% Level			1.5	3.1	4.9	2	N.S.	N.S.
Std. Err. of Entry Mean			0.6	1.3	2.0	1	1227	0.7
¹Yields calculated at 15.5% moisture. ² CV = 13.3%, and df for EMS = 39. ³ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. ⁴ CV = 12.0%, and df for EMS = 27. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 18, 2001.
Harvested:		Short and Mid-Season: August 9, 2001. Full-Season: August 20, 2001.
Seeding Rate:		31,000 seeds/acre in 30″ rows.
Soil Type:		Rome gravelly clay loam.
Soil Test:		P = Very High, K = High, and pH = 6.0.
Fertilization:		75 lb N, 90 lb P₂O₅, and 180 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled, chisel plowed, and rototilled: Aatrex and Lasso used for weed control; irrigated 4.0 inches.
Test conducted by P.A. Rose, G. Rawls, and J. Stubbs.

Blairsville, Georgia

Evaluation of Corn Hybrids for Silage, 2001, Nonirrigated Blairsville, Georgia
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Plant Population no.	2-Yr Avg Dry Forage Yield tons/acre
			Dry¹	Green
			tons/acre
Short and Mid-Season
AgraTech	1701	M	13.6	51.9	26.1	42	28072	.
DeKalb	DK 697	M	11.4	42.1	27.1	44	29524	.
Pioneer	31G98	S	11.2	44.6	25.1	43	28919	.
Pioneer	31R88	M	11.1	44.9	24.8	44	29161	12.9
NK	N 83-N5	M	11.1	42.7	26.0	44	29887	11.9
AgraTech	905RR	M	11.0	43.4	25.4	41	27588	.
NK	N 8811	M	10.8	42.3	25.6	40	24926	12.1
DeKalb	DKC68-70	M	10.8	47.0	22.9	38	27951	.
Zimmerman	1851W	S	10.6	41.9	25.3	39	28193	.
Southern States	SS859CL	M	10.4	41.9	24.9	44	28556	11.8
Pioneer	33J56	S	10.3	46.8	22.7	46	27467	12.3
Croplan Genetics	827	M	10.0	44.4	22.5	43	26741	.
Garst/AgriPro	8288	M	10.0	35.8	27.9	48	27225	.
Croplan Genetics	733Bt	S	9.6	30.9	30.9	47	26620	.
Average			10.8²	42.9	25.5	43	27916	12.2
LSD at 10% Level			1.5	3.2	3.3	3	N.S.³	N.S.
Std. Err. of Entry Mean			0.6	1.4	1.4	1	1107	0.7
Full-Season
NK	N91-R9	F	12.1	47.1	25.7	40	28314	11.4
Pioneer	30F33	F	11.6	49.4	23.5	31	28435	11.7
Southland Seed Co.	SM-135	F	11.2	42.6	26.4	36	26620	.
Southland Genetics	SG1877	F	10.9	40.4	26.9	31	27467	10.9
AgraTech	1836	F	10.4	38.1	27.4	34	28314	.
Southern States	SS1060	F	9.4	34.5	27.2	34	27039	.
Greenwood	830	F	9.1	35.0	26.1	38	27588	.
Southland Seed Co.	SM-128	F	8.7	31.5	27.6	31	25652	.
AgraTech	1010RR	F	8.5	33.9	25.0	32	28813	.
Southland Seed Co.	SG1836	F	8.1	30.5	26.3	34	26983	.
Average			10.0⁴	38.3	26.2	34	27522	11.3
LSD at 10% Level			0.9	3.0	1.3	4	N.S.	N.S.
Std. Err. of Entry Mean			0.4	1.2	0.5	2	732	0.4
¹ Yields calculated at 15.5% moisture. ² CV = 11.6%, and df for EMS = 39. ³ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. ⁴ CV = 7.2%, and df for EMS = 27. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		May 7, 2001.
Harvested:		Short and Mid-Season: September 4, 2001. Full-Season: September 7, 2001.
Seeding Rate:		30,000 seeds/acre in 30″ rows.
Soil Type:		Bradson clay loam.
Soil Test:		P = High, K = High, and pH = 6.2.
Fertilization:		77 lb N, 77 lb P₂O₅, and 77 lb K₂O/acre as preplant; 150 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Moldboard plowed and disked; Aatrex, Bicep, and one cultivation used for weed control.
Test conducted by P. A. Rose and H. D. Garrett.

Quincy, Florida

Evaluation of Corn Hybrids for Silage, 2001, Irrigated Quincy, Florida
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Plant Population no.	2-Yr Avg Dry Forage Yield tons/acre
			Dry	Green
			tons/acre
Short and Mid-Season
DeKalb	DK 697	M	10.4	22.1	46.8	.	23121	.
Zimmerman	1851W	S	9.2	21.5	42.6	.	20991	8.7
Croplan Genetics	827	M	8.7	22.4	38.6	.	21227	.
Pioneer	31R88	M	8.6	20.8	41.3	.	22727	7.8
Pioneer	31G98	S	8.2	20.4	40.2	.	19413	.
AgraTech	1701	M	8.2	19.0	43.1	.	19334	.
DeKalb	DKC68-70	M	8.1	21.2	38.4	.	20833	.
Pioneer	33J56	S	8.1	18.1	44.7	.	21306	6.6
Croplan Genetics	DS820	S	8.0	20.0	40.0	.	20596	.
Croplan Genetics	DS740	S	8.0	17.8	44.7	.	19807	.
Southern States	SS859CL	M	7.8	19.7	39.9	.	19334	7.1
NK	N 8811	M	7.3	18.3	39.5	.	17676	6.0
AgraTech	905RR	M	7.2	16.8	42.3	.	19255	.
NK	N 83-N5	M	7.1	16.0	43.9	.	18387	5.3
Garst/AgriPro	8288	M	7.0	16.0	43.9	.	19570	.
Croplan Genetics	DS723	S	7.0	15.7	44.2	.	19491	.
AgraTech	890	M	6.1	15.2	40.2	.	16177	.
Croplan Genetics	733Bt	S	6.0	12.8	46.9	.	18466	.
Average			7.8¹	18.5	42.3	.	19873	6.9
LSD at 10% Level			1.6	3.7	2.6		3130	1.4
Std. Err. of Entry Mean			0.6	1.6	1.0		1321	0.6
Full-Season
Pioneer	30F33	F	10.7	24.4	43.5	.	21385	8.8
Southland Seed Co.	SM-135	F	9.9	22.7	43.6	.	21149	.
Southland Genetics	SG1877	F	9.4	21.7	43.0	.	20675	7.5
Southern States	SS1060	F	9.0	20.6	43.6	.	21386	.
NK	N91-R9	F	8.6	20.9	41.0	.	20359	7.0
Greenwood	830	F	8.2	18.9	43.3	.	21386	6.8
Southland Seed Co.	SG1836	F	7.2	16.5	43.7	.	16730	.
AgraTech	1836	F	7.2	16.4	44.0	.	16966	6.6
Southland Seed Co.	SM-128	F	6.9	17.3	40.2	.	17440	.
AgraTech	1010RR	F	6.8	16.6	41.0	.	16808	.
Average			8.41	19.6	42.7	.	19428	7.4
LSD at 10% Level			1.9	4.0	N.S.²		N.S.	1.3
Std. Err. of Entry Mean			0.8	1.6	1.4		1764	0.5
¹ CV = 16.8%, and df for EMS = 51. ² CV = 19.2%, and df for EMS = 39. ³ The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		April 3, 2001.
Harvested:		Short and Mid-Season: July 23, 2001. Full-Season: July 30, 2001.
Seeding Rate:		25,500 seeds/acre in 30″ rows.
Soil Type:		Dothan sandy loam.
Soil Test:		P = Medium, K = Medium, and pH = 5.6.
Fertilization:		18 lb N, 54 lb P₂O₅, and 108 lb K₂O/acre as preplant; 174 lb N/acre as sidedress.
Previous Crop:		Soybean.
Management:		Subsoiled and strip tilled; Aatrex, Prowl, and Permit used for weed control; irrigated 10.0 inches.
Test conducted by D. L. Wright and B. Kidd.

Ona, Florida

Evaluation of Corn Hybrids for Silage, 2001, Irrigated Ona, Florida
Company or Brand Name	Hybrid Name	Maturity Class	Forage Yield		Dry Matter %	Grain Portion %	Grain Yield¹ no.
			Dry	Green
			tons/acre
Pioneer	32R25	S	10.2	26.5	38.5	53	191
Zimmerman	1851W	S	9.9	25.5	38.8	49	176
Pioneer	3146	M	9.5	22.2	42.7	56	194
AgraTech	905RR	M	9.5	23.8	39.9	54	178
Pioneer	31G98	S	9.2	24.0	38.4	55	183
NK	N 8811	M	9.2	23.0	40.0	62	197
DeKalb	DK 697	M	9.1	21.7	41.9	58	195
DeKalb	DKC68-70	M	9.1	25.1	36.3	50	166
Dyna-Gro	5516RR	S	9.1	23.8	38.2	51	162
Pioneer	31R88	M	9.0	22.8	39.4	59	183
Garst/AgriPro	8222	S	9.0	22.0	40.9	61	196
NK	N 83-N5	M	8.9	21.3	41.8	58	182
Southern States	SS781CL	S	8.8	21.8	40.4	63	200
AgraTech	787	S	8.8	21.8	40.4	58	184
Pioneer	32H58	S	8.7	22.3	39.0	62	190
Southern States	SS882CL	M	8.7	20.9	41.6	58	180
Pioneer	32K61	S	8.6	19.9	43.2	57	181
Funk’s G	5516	S	8.5	23.4	36.3	54	161
Croplan Genetics	1167CL	M	8.4	21.2	39.6	53	157
Garst/AgriPro	8288	M	8.3	20.0	41.5	67	191
Croplan Genetics	702	M	8.3	22.0	37.8	58	178
NK	N91-R9	F	8.3	22.1	37.6	53	158
AgraTech	721RR	S	8.2	20.2	40.5	60	178
Croplan Genetics	767RR	S	8.0	20.3	39.4	62	176
Average			8.9	22.4	39.7	57	181
LSD at 10% Level			N.S.²	–	4.5	30.6	N.S.
¹ Yields calculated at 15.5% moisture. ² The F-test indicated no statistical differences at the alpha = .10 probability level; therefore an LSD value was not calculated. Bolding indicates entries yielding equal to highest yielding entry within a column based on Fisher’s protected LSD (P = 0.10).
Planted:		March 22, 2001.
Harvested:		July 9, 2001.
Plant Population:		28,000 plants/acre in 30″ rows.
Fertilization:		50 lb N, 80 lb P₂O₅, and 160 lb K₂O/acre as preplant; 200 lb N/acre as sidedress.
Management:		Aatrex and dual used for weed control; Counter used for insect control; irrigated 20 inches.
Test conducted by P. Mislevy.

INSECT SCREENING RESULTS

Evaluation of Corn Hybrids for Resistance to Insects

N. W. Widstrom and B.G. Rector

Environmental conditions in Georgia during the 2001 growing season were favorable for buildup of insect populations large enough to cause damage to corn. Generally, this damage is greatest in late-planted corn left in the field for an extended period past maturity.

It is recommended that hybrids resistant to insects be planted. These hybrids are presently the only economical means, in late plantings, for the reduction of damage by corn earworm, fall armyworm, maize weevil, and pink scavenger caterpillar. Consult your local county agent and/or extension entomologist for additional control recommendations for other insects.

Percent yield losses attributable to all insects for individual hybrids varied from 0.7% to 6.0% and are reflected by VG, G, F, P, and VP ratings in the tables. Hybrids in the tests sustained average yield losses of 2.1% and 3.1% in the full and mid-season, and short-season hybrid tests, respectively. The mean level of overall yield loss for all tests was 2.7%. Of the total loss, about 37% was attributable to ear injury by the corn earworm, 53% to the pink scavenger caterpillar, and 10% to the maize weevil. Losses to the pink scavenger caterpillar and maize weevil are based on damage by multiple generations of these insects as the corn dries in the field. Timely harvest will substantially reduce losses to these two insects.

Evaluations for resistance to corn earworm and fall armyworm, maize weevil, and pink scavenger caterpillar are given for hybrids in the tables following. Lettered ratings refer only to relative resistance to insects and are not indicative of yield. Thus, a hybrid rated poor for resistance to insects might possibly be among the highest yielders and vice-versa. See the yield data in other tables for this information.

Husk tightness ratings were assigned using a scale of 1 to 5, in which 1 = very loose and 5 = very tight. No average rating was less than 2.0 or greater than 4.0; therefore, only loose, medium, and tight ratings are given in the tables.

Both the hybrid tests (full and mid-season, and short-season) were planted April 26, 2001. Plantings were delayed in 2001 due to dry field conditions during March and April. Plots were thinned to 20,000 plants per acre. Ratings for overall insect damage were completed during September.

Data for this section were compiled by J. M. Cook, J. C. Mullis, C. A. Pearl, Brad Arrington, and Heather Roberts of the United States Department of Agriculture, Crop Genetics and Breeding Research Unit, and Georgia Coastal Plain Experiment Station, Tifton, Georgia.

Tifton, Georgia

Short-Season Corn Hybrids, 2001 Tifton, Georgia
Company Brand Name	Hybrid Name	Husk Tightness¹	Days to Anthesis	Overall Resistance to Insect Injury²
Company Brand Name	Hybrid Name	Husk Tightness¹	Days to Anthesis	2001	2 or more years
AgraTech	71593Bt1	M	60	VG	–
Garst/AgriPro	8222IT	T	61	VG	G
Pioneer	34B24	M	58	G	–
Pioneer	32k64	L	60	G	–
Terral	TV140RR	T	62	G	–
DeKalb	DKC66-50	L	56	F	–
Croplan Genetics	818	T	58	F	F
Croplan Genetics	683	L	59	F	–
DeKalb	DKC65-25	L	60	F	F
Dyna-Gro	5516RR	T	60	F	–
Dyna-Gro	5518RR	M	60	F	–
Funks’s	5516	M	61	F	G
Garst	8285	T	62	F	F
Garst/AgriPro	8251IT	T	62	F	F
Pioneer	32k61	M	62	F	G
Wilson-Zimmerman	1851W	T	62	F	G
AgraTech	721RR	L	63	F	–
Pioneer	32R25	T	63	F	–
AgriPro	9843	M	64	F	F
Terral	TV160Bt	M	64	F	–
AgraTech	4501	L	57	P	–
Croplan Genetics	767RR	M	58	P	–
AgraTech	719	M	58	P	–
Pioneer	32H58	M	58	P	–
Pioneer	33G26	L	58	P	P
Pioneer	33J56	L	59	P	–
Southern States	SS781CL	L	59	P	–
Southland Seed Co.	XM-115	L	60	P	–
Southland Seed Co.	XM-118	L	60	P	–
AgraTech	1701	L	61	P	–
Kaystar	X1181	L	62	P	–
Garst/AgriPro	9707	M	63	P	F
AgraTech	787	M	63	P	F
Croplan Genetics	721	L	56	VP	–
Pioneer	34B28	L	57	VP	–
Pioneer	33G30	L	58	VP	–
Pioneer	31G98	M	59	VP	P
Dyna-Gro	5515	M	64	VP	–

¹ L = loose husks, M = medium-tight husks, T = tight husks. ² Overall resistance to insect injury evaluations were made on the basis of total percent damage to the ear by one or more of the following insect categories: corn earworm and fall armyworm, maize weevil, and pink scavenger caterpillar. Ratings were made on a scale from very good to very poor, where VG = very good, G = good, F = fair, P = poor, and VP = very poor.

Full and Mid-Season Corn Hybrids, 2001 Tifton, Georgia
Company or Brand Name	Hybrid Name	Husk Tightness¹	Days to Anthesis	Overall Resistance to Insect Injury²
Company or Brand Name	Hybrid Name	Husk Tightness¹	Days to Anthesis	2001	2 or more years
Garst/AgriPro	8288	L	57	VG	–
Dekalb	DKC68-70	T	59	VG	–
Southern States	SS80833	M	60	VG	–
Croplan Genetics	702	M	62	VG	G
Greenwood	840*	T	66	VG	–
Dekalb	DK697	L	58	G	F
Dekalb	DK687	M	58	G	G
Pioneer	31R88	L	58	G	F
Golden Acres	8311	M	59	G	–
Garst/AgriPro	8215	M	59	G	–
Syngenta	NK N 8811	M	59	G	G
Pioneer	3146	L	60	G	G
Syngenta	N91-R9 *	M	63	G	G
Southern States	SS882CL	L	59	F	–
Croplan Genetics	1167CL	M	60	F	–
Croplan Genetics	827	L	61	F	–
Dyna-Gro	X15548	M	62	F	–
AgraTech	Exp. 11613	L	62	F	–
AgraTech	905RR	M	62	F	–
Southland Seed Co.	XM-119	L	62	F	–
Croplan Genetics	7879	M	63	F	–
Golden Acres	8681FQ	M	59	P	–
Syngenta	NK N 83-N5	L	59	P	F
Greenwood	780	L	63	P	–
Greenwood	775	M	61	VP	F

* Full-season hybrid. ¹ L = loose husks, M = medium-tight husks, T = tight husks ² Overall resistance to insect injury evaluations were made on the basis of total percent damage to the ear by one or more of the following insect categories: corn earworm and fall armyworm, maize weevil, and pink scavenger caterpillar. Ratings were made on a scale from very good to very poor, where VG = very good, G = good, F = fair, P = poor, and VP = very poor.

Sources of Seed for the 2001 Corn Hybrid Tests

Company or Brand Name	Seed Source
AgraTech	Grabow Seed, 6830 Lisa Lane, Dunwoody, GA 30338
AgriPro, Garst	Garst Seed Company, 761 Walnut Knoll Ln., Suite 200, Memphis, TN 38018
CPES-USDA	University of Georgia, Coastal Plain Experiment Station, P.O. Box 748, Tifton, GA 31793
Croplan Genetics	Land O’ Lakes, P.O. Box 146, Blytheville, AR 72316
DeKalb	Monsanto Global Seed Group, 3100 Sycamore Road, DeKalb, IL 60115
Dyna-Gro, Funk’s G	United Agri Products, 25324 Huntsville Brownsferry Rd., Madison, AL 35756
Golden Acres	Golden Acres, P.O. Box 98, Chester, GA 31012
Greenwood	Greenwood, 8431 Davis Road, Laurel Hill, FL 32567
Kaystar	Kaystar Seed, 40529 US Hwy 14 East, P.O. Box 947, Huron, SD 57350
NK	Syngenta Seeds, Inc., P.O. Box 1240, Winterville, NC 28598
Pioneer	Pioneer Hi-Bred International, Inc., 6767 Old Madison Pike, Suite 110, Huntsville, AL 35806
Southland, Southland Genetics	Southland Seed Company, Inc., Route 10, 404 Holly Dr., Dublin, GA 31021
Southern States, SS	Southern States Coop, P.O. Box 26234, Richmond, VA 23260
Terral	Terral Seed, Inc., P.O. Box 826, Lake Providence, LA 71254
Zimmerman	Wilson Genetics, L.L.C., P.O. Box 391, Harlan, IA 51537

Cooperators

Dr. L.S. Dunavin, West Florida Research & Education Center, Jay, Florida
Mr. H.D. Garrett, Mountain Branch Station, Blairsville, Georgia
Dr. R.N. Gates, USDA-ARS, Coastal Plain Experiment Station, Tifton, Georgia
Mr. J. Garner, Mountain Branch Station, Blairsville, Georgia
Dr. G. Hoogenboom, Biological and Agricultural Engineering Department, Georgia Experiment Station, Griffin, Georgia
Mr. S.R. Jones, Southwest Branch Station, Plains, Georgia
Mr. R.D. McNeill, IV, Southeast Branch Station, Midville, Georgia
Dr. P. Mislevy, Range Cattle Research & Education Center, Ona, Florida
Mr. R.R. Pines, Southwest Branch Station, Plains, Georgia
Mr. J.C. Quick, Georgia Station, Griffin, Georgia
Mr. G. Rawls, Northwest Branch Station, Calhoun, Georgia
Dr. B.G. Rector, USDA-ARS, Coastal Plain Experiment Station, Tifton, Georgia
Mr. E.T. Ross, Coastal Plain Experiment Station, Tifton, Georgia
Mr. David Stephens, Southwest Branch Station, Plains, Georgia
Dr. N.W. Widstrom, USDA-ARS, Coastal Plain Experiment Station, Tifton, Georgia
Mr. P.C. Worley, Northwest Branch Station, Calhoun, Georgia
Dr. D.L. Wright, North Florida Research & Education Center, Quincy, Florida

Contributors

The following individuals contributed to the gathering of data and preparation of this report: L. Adcock, B. Arrington, R. Brooke, J. Cook, M. Davis, M. Flynn, M. Gilmer, D. Gresham, T. Hancock, B. Kidd, C. McCreeless, J. Mullis, C. Pearl, M. Pippin, H. Roberts, J. Skinner, J. Stubbs and W. Tucker.

Editors

J. LaDon Day is program coordinator of statewide variety testing. Paul A. Rose is an agricultural research coordinator II in the Department of Crop and Soil Sciences, Georgia Experiment Station, Griffin, GA 30223-1797. A.E. Coy is a senior agricultural specialist in the Department of Crop and Soil Sciences, Coastal Plain Experiment Station, Tifton, GA 31793-0748.

Published by University of Georgia Cooperative Extension. For more information or guidance, contact your local Extension office.

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2001 Corn Performance Tests

Table of Contents

Preface

The Season

GRAIN TESTS RESULTS