EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001 Agrononmy and Soils Departmental Series No. 239 Alabama Agricultural Experiment Station Robin Huettel, Interim Director Auburn University Auburn, Alabama December 2001

1

Evaluations of

Corn Hybrids
in Alabama, 2001

Printed in cooperation with the Alabama Cooperative Extension System (Alabama A&M University and Auburn University).

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ALABAMA AGRICULTURAL EXPERIMENT STATION

Table of Contents
Page
Acknowledgments Introduction ............................................................................................................................................................... 4 Table 1. Locations and Cultural Practices for the 2001 Corn Hybrid Tests ............................................................ 5

NORTHERN ALABAMA
Table 2. Table 3. Table 4. Table 5. Table 6. Two- and Three-year Yield and Lodging Averages for Yellow Corn in Northern Alabama, 1999-01 ....... 6 2001 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Northern Alabama ................................................................................................................................. 7 Early Corn Hybrid Test at Crossville in Northern Alabama, 1999-01 ........................................................ 8 Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Crossville in Northern Alabama, 2001 ....................................................................................................................... 8 Irrigated Corn Hybrid Performance and Characteristics, Belle Mina, Alabama, 1999-01 .......................... 9

CENTRAL ALABAMA
Table 7. Two- and Three-year Yield and Lodging Averages for Yellow Corn at Prattville in Central Alabama, 1999-01 .................................................................................................................... 10 Table 8. 2001 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics at Pratttville in Central Alabama ............................................................................................................. 10 Table 9. Early Corn Hybrid Test at Shorter in Central Alabama, 1999-01 ............................................................. 11 Table 10. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Tallassee in Central Alabama, 2001 ......................................................................................................................... 11 Table 11. Characteristics of Irrigated Corn Hybrids Tested One Year in Preliminary Test at Tallassee in Central Alabama, 2001 ......................................................................................................................... 12 Table 12. Corn Hybrid Performance and Characteristics at Marion Junction in Central Alabama, 2001 ......................................................................................................................... 12

SOUTHERN ALABAMA
Table 13. Two- and Three-year Yield and Lodging Averages for Yellow Corn in Southern Alabama, 1999-01 ..... 13 Table 14. 2001 Yield of Corn Hybrids by Location and Regional Averages of Hybrid Characteristics in Southern Alabama .............................................................................................................................. 14 Table 15. Irrigated Corn Hybrid Performance and Characteristics, Headland, Alabama, 1999-01 .......................... 15 Table 16. Early Corn Hybrid Test at Fairhope in Southern Alabama, 1999-01 ....................................................... 16 Table 17. Characteristics of Corn Hybrids Tested One Year in Preliminary Test at Fairhope in Southern Alabama, 2001 ..................................................................................................................... 16 Table 18. Growing Season Rainfall, 1999-01 ........................................................................................................... 17 Table 19. Soil Types for Corn Trials, 2001 .............................................................................................................. 18 Sources of 2001 Corn Hybrid Test Seed .................................................................................................................. 18
Information contained herein is available to all persons regardless of race, color, sex, or national origin. Issued in furtherance of Cooperative Extension work in agriculture and home economics, Acts of May 8 and June 30, 1914, and other related acts, in cooperation with the U.S. Department of Agriculture. The Alabama Cooperative Extension System (Alabama A&M University and Auburn University) offers educational programs, materials, and equal opportunity employment to all people without regard to race, color, national origin, religion, sex, age, veteran status, or disability.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

3

Acknowledgments
Appreciation is expressed to Mien-Huei Tzeng, Research Data Analysis, for the computation, summarization, and analysis of the data in this report. Appreciation is also expressed to the following supervisory personnel of the outlying units whose quality work makes this a reliable source of information for farmers in their areas. Chet Norris and Ellis Burgess, Tennessee Valley Research and Extension Center; Tony Dawkins, Sand Mountain Research and Extension Center; Jimmy Holliman, Black Belt Research and Extension Center; Don Moore, Prattville Research Field; James Bannon, Bobby Durbin, and Steve Nightengale, E.V. Smith Research Center; Randy Akridge, Brewton and Monroeville Research Fields; Ronnie McDaniel and Malcomb Pegues, Gulf Coast Research and Extension Center; Larry Wells and Brian Gamble, Wiregrass Research and Extension Center.

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ALABAMA AGRICULTURAL EXPERIMENT STATION

Evaluations of Corn Hybrids in Alabama, 2001

K. M. Glass and P. L. Mask1

INTRODUCTION
Selected corn hybrids are evaluated annually by the Alabama Agricultural Experiment Station as a service to producers and industry. These tests are conducted throughout the state in an attempt to determine effects of different climatic factors and soil types on yield. There are several types of tests in the program. The Preliminary Hybrid Tests are conducted at one location in each of the northern, central, and southern regions of Alabama. These tests include experimental and newly released hybrids. If a hybrid is outstanding in the preliminary test, it is entered in the Regular Corn Hybrid Test the following year. The Regular Corn Hybrid Test is conducted at two locations in the northern region, two locations in the central region, and four locations in the southern region. Early yellow corn hybrids are tested at one location in each region. In addition, a regular corn hybrid test is irrigated at both Belle Mina and Headland and a preliminary test is irrigated at Tallassee. Locations and cultural practices for all tests are given in Table 1.

PROCEDURE
All tests are laid out in a randomized complete block design with four replicate plots for each variety at each location. Rows are 30 to 36 inches apart, depending on location. Two-row plots are used, and both rows are harvested. Plots are 20 to 30 feet long, depending on location. The target plant population for the tests is 20,000 plants per acre with a seeding rate of 23,000 seeds per acre. The irrigated tests at Belle Mina, Tallassee, and Headland are seeded at a rate to achieve 30,000 plants per acre, but are thinned to 25,000 plants per acre. Grain yields are adjusted to 15.5 percent moisture and converted to bushels (56 pounds) per acre. Stalks broken or leaning more than 45 degrees are considered lodged. The mid-silk data show the number of days from planting until approximately half the plants in the plots are showing silks. The Regular Corn Hybrid tests also are examined for disease incidence at selected locations each year. When virus or other disease symptoms indicate crop damage, disease ratings are compiled and published in this report.

INTERPRETATION OF DATA
In replicated experiments such as those reported here, yields from each of the four replicate plots of a particular variety at a given location will be slightly different because of inherent differences in productivity among those plots. These differences in yield among replicate plots are known as random variation. Given this situation it is clearly necessary to have a method to determine whether differences among hybrids are “true” or “real” differences, or whether they are due to random variation. To do this, a statistical analysis was conducted to determine a “least significant difference” (LSD) by comparing the differences among varieties with random variation. If the difference in yield between two hybrids is larger than the LSD, then the difference is probably real, but if the difference is less than the LSD, it may not be real. If the difference between two hybrids is less than, but close to the LSD, then there is still a chance that it is real, but if it is considerably smaller than the LSD, then it is probably not real and mainly due to random variation.
1 Glass is an Agricultural Program Associate and Mask is a Professor in the Auburn University Department of Agronomy and Soils.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

5

With this in mind it is very important to study differences in hybrid yields in relation to the LSD, which is provided at the bottom of the table for each of the current year yield columns at each location. Clearly, LSDs vary from one location to another. This is because random variation varies among locations and from year to year. The coefficient of variation (CV) is a reflection of random variation, and is reported below the LSD values in the tables. If the CV is low, a precise or reliable test is indicated. Ideally, the CV should be below 10 percent, but CVs of 10 to 20 percent are acceptable. Values for the CV above 20 percent indicate a rather unreliable test, which may have been caused by factors such as disease variation among replicates, etc. In comparing yield potential of two hybrids it is important to consider a wide range of results. Do not focus on results from only one year at one location. Two- and three-year average yields are provided by location and region. These are more useful guides than yields from only one year. However, other factors may deserve consideration. For example, differences between the highest and the lowest yield of a hybrid across several locations may be an indication of the stability of its yield under variable conditions, or what is the “risk level” of the variety. Differences in yield of hybrids among locations will be a result of the combined effects of differences among locations in soil, weather (mainly rainfall), planting date, weed control, and other factors. To assist in estimating which factors most likely had the greatest effect on yield differences among locations, planting dates and cultural practices (Table 1), rainfall records (Table 18), and soil types (Table 19) are provided. This information also serves as a guide for assessing conditions to which results may be extrapolated.

TABLE 1. L OCATIONS
Location

AND

CULTURAL P RACTICES
Planting
date

FOR THE

2001 CORN HYBRID TESTS
Plant Date Herbicides
used

Nitrogen
rate1

population harvested

NORTHERN ALABAMA Tennessee Valley Research and Extension Center (Belle Mina) Regular test (nonirrigated) March 27 150 Regular test (irrigated) March 27 175 Sand Mountain Research and Extension Center (Crossville) Early corn test April 11 125 Regular test April 18 125 Preliminary test April 18 125 CENTRAL ALABAMA E.V. Smith Research Center (Shorter) Early corn test (nonirrigated) April 11 Plant Breeding Unit (Tallassee) Preliminary test April 2 Preliminary test (irrigated) April 2 Prattville Research Field (Prattville) May 3 Black Belt Research and Extension Center (Marion Junction) April 19 SOUTHERN ALABAMA Brewton Research Field (Brewton) March 26 Wiregrass Research and Extension Center (Headland) Regular test (nonirrigated) April 11 Regular test (irrigated) April 11 Gulf Coast Research and Extension Center (Fairhope) Early corn test March 6 Regular test March 23
Preliminary test
1

20,000 25,000 20,000 20,000 20,000

September 13 Atrazine/Dual September 14 Atrazine/Dual September 10 Atrazine/Dual September 10 Atrazine/Dual September 10 Atrazine/Dual

150 140 140 110 150 140 195 265 150 150
150

20,000 20,000 25,000 20,000 20,000 20,000 20,000 25,000 20,000 20,000
20,000

August 17 August 28 September 4 October 4

Atrazine/Dual Atrazine Atrazine Atrazine

September 11 Atrazine August 22 August 24 August 27 August 4 August 4
August 4

Atrazine Atrazine Atrazine Atrazine/Dual Atrazine/Dual
Atrazine/Dual

March 23

Pounds per acre N. Lime, phosphorus, potassium, zinc, and sulfur were applied according to soil test recommendations.

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ALABAMA AGRICULTURAL EXPERIMENT STATION

TABLE 2. TWO- AND T HREE-YEAR YIELD AND LODGING A VERAGES FOR YELLOW CORN IN N ORTHERN A LABAMA , 1 1999-01
Brand name–hybrid ———Yield per acre, av.———
3-yr. (1999-01) bu. 2-yr. (2000-01) bu.

———Lodged stalks, av.———
3-yr. (1999-01) pct. 2-yr. (2000-01) pct.

Dekalb DK 687 SS 859 CL Garst/AgriPro 9707 Pioneer 3167 2 Pioneer 3163 2 Garst/AgriPro 8222IT Funk’s DG 5516 Pioneer 32K61 SS 900 BT Pioneer 31R88 Pioneer 31G98 Dekalb DK 697 Garst/AgriPro 8251IT CG 818
1

154 151 148 147 143 139 139 138 – – – – – –
2

138 139 136 131 126 129 124 116 148 146 137 134 123 121

1.0 2.2 2.3 2.7 2.5 1.2 1.7 1.8 – – – – – –

1.3 3.0 2.5 3.5 2.8 1.3 2.3 2.3 1.5 2.8 1.3 2.5 4.0 1.3

Belle Mina and Crossville.

Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

7

T ABLE 3. 2001 YIELD OF CORN H YBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS IN NORTHERN ALABAMA
Brand name–hybrid Belle
Mina bu.

Crossville bu.

——————2001 Regional Averages—————— Yield Lodged Test MidHusk Harvest
per ac. bu. stalks pct. weight lb./bu. silk cover moisture mo.-da. rating1 pct.

Dekalb DK 697 Dekalb DK 687 SS 900 BT Pioneer 31R88 SS 882CL Pioneer 32H58 Pioneer 31G98 Garst/AgriPro 9707 Dekalb DKC 68-70 Pioneer 32K64 Dyna-Gro 5518 RR Dyna-Gro 5515 SS 859 CL Pioneer 32R25 TV 2140RR Garst/AgriPro 8222IT Pioneer 3163 2 Croplan Genetics 1167RR Pioneer 3167 2 Croplan Genetics 743 CG 818 Funk’s DG 5516 TV 2160BT Garst/AgriPro 8251IT Croplan Genetics 7879 Pioneer 32K61 Test Average L.S.D. (.05) C.V. (%)
1

195 182 182 193 169 183 193 187 181 176 178 177 168 173 182 166 175 171 162 170 156 166 171 158 162 156 174.2 16.6 6.8

196 207 203 190 209 192 178 184 190 183 178 178 187 174 165 179 169 170 177 165 165 147 139 151 137 135 174.8 39.6 16.1

196 194 192 192 189 187 186 185 185 179 178 178 177 173 173 172 172 170 169 168 160 156 155 154 150 145

0.5 0.5 0.0 0.5 0.0 1.0 0.5 0.5 0.0 0.5 1.0 1.0 1.0 2.0 0.5 0.5 0.5 0.5 1.0 1.5 1.0 0.5 0.0 1.5 1.0 0.5

59.4 57.2 55.3 59.0 58.2 59.5 57.5 57.0 57.6 59.3 56.7 57.1 55.2 58.5 56.8 58.4 57.4 57.9 58.7 55.3 56.6 57.4 58.5 57.2 58.6 60.3

6-22 6-22 6-20 6-21 6-21 6-20 6-21 6-22 6-22 6-21 6-22 6-22 6-21 6-22 6-22 6-20 6-22 6-21 6-23 6-17 6-20 6-21 6-22 6-21 6-20 6-21

3 2 2 3 2 2 3 2 2 3 2 2 2 2 2 2 3 2 2 3 2 2 2 2 3 3

17.9 19.0 18.5 19.3 18.2 18.1 17.9 17.9 18.4 17.6 17.9 17.9 18.2 18.0 17.3 19.0 17.7 17.9 20.7 17.6 19.0 17.8 17.9 17.7 19.1 17.9

1= Excellent; 5= Very poor. 2Standard hybrids for comparison.

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ALABAMA AGRICULTURAL EXPERIMENT STATION

T ABLE 4. E ARLY CORN HYBRID T EST
Brand name–hybrid —Yield per acre/av.— 3-yr. 2-yr. 1999-01 2000-01 2001
bu. bu. bu.

AT

C ROSSVILLE

IN

NORTHERN A LABAMA, 1999-01
———2001 regional av.—— MidTest Husk Harvest silk weight cover moisture
mo.-da. lb./bu. rating1 pct.

—Lodged stalks, av.— 3-yr. 2-yr. 1999-01 2000-01 2001
pct. pct. pct.

Pioneer 32K61 158 Pioneer 3245 2 154 Pioneer 33G26 148 Croplan Genetics 721 – Dekalb DKC61-24 – Pioneer 34B28 – Pioneer 32K64 – Pioneer 32H58 – Dekalb DKC65-25 – Pioneer 34B24 – Pioneer 33G30 – Test Average L.S.D. (.05) C.V. (%)
1

144 146 139 – – – – – – – –

158 175 170 183 182 171 169 163 161 151 138 165.3 36.6 15.3

1.0 2.7 1.7 – – – – – – – –

1.5 3.5 2.5 – – – – – – – –

0.0 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

6-29 6-28 6-26 6-27 6-27 6-27 6-29 6-27 6-29 6-28 6-26

60.5 60.3 59.5 57.5 58.3 59.6 59.6 58.3 59.4 59.8 59.1

3 3 4 3 3 3 4 3 3 3 4

16.7 16.4 15.9 16.1 15.9 15.0 16.2 17.5 17.1 16.1 16.1

1= Excellent; 5= Very poor.

2

Standard mid to late season hybrids.

TABLE 5. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST C ROSSVILLE IN NORTHERN ALABAMA, 2001
Brand name–hybrid Av. yield per acre
bu.

AT

Lodged stalks
pct.

Husk cover
rating1

Midsilk
mo.-da.

Test weight
lb./bu.

Harvest moisture
pct.

Croplan Genetics 733BT Garst/AgriPro 8215 Garst/AgriPro 8288 Dyna-Gro X15548 Croplan Genetics 827 Pioneer 3167 2 Pioneer 3163 2 Croplan Genetics 683 Garst 8366 IT Croplan Genetics 767RR Test Average L.S.D. (.05) C.V. (%)
1

196 187 181 180 166 165 159 158 147 146 168.5 49.2 20.1
2

0 0 0 0 0 0 0 0 0 0

3 3 3 3 3 3 3 3 3 3

6-29 6-29 6-28 6-29 6-27 6-30 6-27 6-25 6-28 6-28

57.4 57.6 57.8 58.6 56.9 58.1 57.1 58.2 55.3 56.8

16.4 17.2 16.6 17.2 17.4 16.5 17.2 15.7 17.3 15.6

1= Excellent; 5= Very poor.

Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

9

TABLE 6. IRRIGATED CORN HYBRID PERFORMANCE AND CHARACTERISTICS, BELLE MINA, ALABAMA,1 1999-2001
Brand name–hybrid —Yield per acre/av.— 3-yr. 2-yr. 1999-01 2000-01 2001
bu. bu. bu.

—Lodged stalks, av.— 3-yr. 2-yr. 1999-01 2000-01 2001
pct. pct. pct.

———2001averages—— MidTest Husk Harvest silk weight cover moisture
mo.-da. lb./bu. rating2 pct.

Garst/AgriPro 8222IT Garst/AgriPro 9707 SS 859 CL Pioneer 3163 3 Dekalb DK 687 Funk’s DG 5516 Pioneer 3167 3 Pioneer 32K61 Pioneer 31G98 SS 900 BT Dekalb DK 697 Pioneer 31R88 Garst/AgriPro 8251IT CG 818 TV 2140RR Dekalb DKC 68-70 Dyna-Gro 5515 Pioneer 32H58 Pioneer 32R25 SS 882CL Croplan Genetics 743 Dyna-Gro 5518 RR Croplan Genetics 1167RR TV 2160BT Croplan Genetics 7879 Pioneer 32K64 Test Average L.S.D. (.05) C.V. (%)

218 217 213 203 200 196 193 184 – – – – – – – – – – – – – – – – – –

217 218 203 191 193 194 187 173 207 204 199 199 196 183 – – – – – – – – – – – –

222 223 210 194 209 200 195 168 233 208 215 216 206 203 232 224 216 215 213 212 211 209 208 208 205 189 209.3 13.5 4.6

2.7 3.3 2.7 5.7 3.0 2.3 0.3 0.3 – – – – – – – – – – – – – – – – – –

3.5 4.5 3.5 8.0 4.5 3.0 0.5 0.5 8.0 3.5 6.0 4.0 2.5 9.0 – – – – – – – – – – – –

1.0 1.0 1.0 2.0 1.0 1.0 0.0 0.0 1.0 0.0 1.0 2.0 1.0 1.0 1.0 0.0 1.0 1.0 2.0 1.0 2.0 1.0 1.0 1.0 0.0 1.0

6-11 6-12 6-12 6-13 6-13 6-12 6-15 6-11 6-13 6-12 6-14 6-12 6-12 6-12 6-12 6-13 6-12 6-12 6-12 6-12 6-11 6-13 6-12 6-12 6-12 6-12

59.3 59.2 56.9 59.1 59.3 58.9 59.6 61.1 59.2 57.0 60.4 59.4 58.3 57.5 56.6 58.1 57.8 60.4 58.8 59.7 56.1 56.7 58.8 59.0 59.3 59.8

2 1 2 3 1 1 1 2 2 1 2 3 1 2 1 1 2 2 2 2 3 1 1 2 2 2

20.7 20.6 20.0 20.1 20.4 19.6 23.0 20.0 19.3 20.3 21.7 22.1 19.9 21.2 17.4 20.2 20.6 20.5 22.0 20.3 18.9 19.5 19.7 18.7 19.5 19.5

1 The test received approximately 2.8 inches of irrigation water. comparison.

2

1= Excellent; 5= Very poor.

3

Standard hybrids for

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ALABAMA AGRICULTURAL EXPERIMENT STATION

TABLE 7. T WO- AND THREE -YEAR YIELD AND LODGING AVERAGES FOR YELLOW C ORN AT P RATTVILLE IN C ENTRAL A LABAMA , 1999-01
Brand name–hybrid ———Yield per acre, av.———
3-yr. (1999-01) bu. 2-yr. (2000-01) bu.

———Lodged stalks, av.———
3-yr. (1999-01) pct. 2-yr. (2000-01) pct.

Pioneer 3167 1 Pioneer 3163 1 Dekalb DK 687 Pioneer 32K61 Pioneer 31G98 Funk’s DG 5516 Dekalb DK 697 Pioneer 31R88 CG 818
1

107 107 93 92 – – – – –

81 90 72 81 89 82 80 65 59

2.3 6.0 3.0 1.7 – – – – –

2.5 8.0 3.5 1.5 4.5 1.5 2.5 3.0 2.5

Standard hybrids for comparison.

T ABLE 8. 2001 YIELD OF CORN H YBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID CHARACTERISTICS AT PRATTVILLE IN CENTRAL ALABAMA
Brand name–hybrid Prattville1 bu.

———————2001 Regional Averages——————— Lodged Test MidHusk Harvest
stalks bu. weight lb./bu. silk mo.-da. cover rating1 moisture pct.

Pioneer 3163 2 TV 2160BT Pioneer 31G98 Pioneer 32K61 Dekalb DK 697 Funk’s DG 5516 Dekalb DKC 68-70 Pioneer 3167 2 TV 2140RR Croplan Genetics 7879 Dekalb DK 687 Pioneer 32H58 Dyna-Gro X15548 Pioneer 32R25 Dyna-Gro 5515 Croplan Genetics 1167RR Pioneer 31R88 CG 818 Dyna-Gro 5516 RR Croplan Genetics 743 Test Average L.S.D. (.05) C.V. (%)
1

127 123 122 120 118 118 118 118 116 114 111 111 107 107 106 99 86 72 67 57 105.8 21.3 14.2

14.0 6.0 6.0 1.0 5.0 3.0 5.0 4.0 13.0 5.0 5.0 4.0 4.0 13.0 5.0 4.0 5.0 5.0 2.0 9.0

59.6 58.5 58.3 60.2 60.6 57.7 59.4 54.5 56.0 57.3 58.9 59.7 60.8 58.6 56.4 58.0 58.9 55.0 57.9 51.7

7-25 7-26 7-25 7-24 7-25 7-26 7-26 7-26 7-25 7-26 7-26 7-24 7-25 7-26 7-25 7-26 7-25 7-24 7-25 7-24

3 3 2 3 2 2 1 2 3 3 2 2 2 2 3 2 3 3 2 4

15.4 14.8 14.2 14.5 15.2 14.0 16.6 18.6 13.1 14.6 15.9 15.0 16.7 14.9 13.0 13.6 14.5 13.1 13.0 10.2

1= Excellent; 5= Very poor. 2 Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

11
IN

T ABLE 9. EARLY CORN HYBRID T EST
Brand name–hybrid —Yield per acre/av.— 3-yr. 2-yr. 1999-01 2000-01 2001
bu. bu. bu.

AT

SHORTER

CENTRAL ALABAMA , 1999-01
————2001———— MidTest Harvest -silk weight moisture
mo.-da. lb./bu. pct.

—Lodged stalks, av.— 3-yr. 2-yr. 1999-01 2000-01 2001
pct. pct. pct.

Pioneer 3245 Pioneer 3394 Pioneer 32K61 Pioneer 32H58 Dekalb DKC65-25 Croplan Genetics 721 Pioneer 34B28 Dekalb DKC61-24
1

118 117 113 – – – – –

88 94 83 – – – – –

143 128 131 142 136 134 130 129 134.0 12.7 6.5

1.3 4.7 3.7 – – – – –

1.5 7.0 5.5 – – – – –

0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0

6-13 6-11 6-14 6-13 6-13 6-12 6-12 6-13

– – – – – – – –

30.1 28.1 28.9 30.4 30.5 30.1 28.9 28.9

Test Average L.S.D. (.05) C.V. (%)
1

Standard mid to late season hybrids.

TABLE 10. CHARACTERISTICS OF CORN H YBRIDS TESTED O NE Y EAR IN PRELIMINARY TEST AT T ALLASSEE IN C ENTRAL A LABAMA, 2001
Brand name–hybrid Av. yield per acre
bu.

Lodged stalks
pct.

Husk cover
rating1

Midsilk
mo.-da.

Test weight
lb./bu.

Harvest moisture
pct.

Pioneer 3163 Garst/AgriPro 8288 Croplan Genetics 827 Dyna-Gro X15548 Kaystar X 1181 Pioneer 3167 2 Croplan Genetics 683 Croplan Genetics 767RR Croplan Genetics 733BT
2

171 159 150 147 145 142 138 136 128 146.1 13.7 6.4
2

0.0 1.0 0.0 0.0 1.0 0.0 1.0 0.0 1.0

4 2 2 2 3 2 3 2 4

6-17 6-16 6-20 6-20 6-17 6-20 6-13 6-17 6-13

58.3 58.1 57.1 60.8 58.5 60.7 57.9 58.1 56.2

18.1 20.5 21.4 20.0 17.8 21.2 15.8 18.3 17.6

Test Average L.S.D. (.05) C.V. (%)
1

1= Excellent; 5= Very poor.

Standard hybrids for comparison.

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ALABAMA AGRICULTURAL EXPERIMENT STATION

TABLE 11. CHARACTERISTICS OF IRRIGATED CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT TALLASSEE IN CENTRAL ALABAMA,1 2001
Brand name–hybrid Av. yield per acre
bu.

Lodged stalks
pct.

Husk cover
rating2

Midsilk
mo.-da.

Test weight
lb./bu.

Harvest moisture
pct.

Pioneer 3163 3 Garst/AgriPro 8288 Croplan Genetics 827 Kaystar X 1181 Dyna-Gro X15548 Pioneer 3167 3 Croplan Genetics 767RR Croplan Genetics 683 Croplan Genetics 733BT Test Average L.S.D. (.05) C.V. (%)

194 182 176 165 150 150 148 147 143 161.6 13.1 5.5

1.0 0.0 2.0 0.0 0.0 1.0 0.0 0.0 0.0

4 3 2 3 2 2 3 3 4

6-20 6-17 6-21 6-19 6-21 6-21 6-20 6-17 6-15

57.9 58.3 57.7 58.1 61.3 60.8 57.1 59.1 57.5

22.0 23.2 23.3 21.2 20.8 22.6 22.0 18.9 21.2

1 The test received approximately 4.0 inches of irrigation water. comparison.

2

1= Excellent; 5= Very poor.

3

Standard hybrids for

TABLE 12. CORN HYBRID PERFORMANCE AND CHARACTERISTICS AT MARION JUNCTION IN CENTRAL ALABAMA, 2001
Brand name–hybrid Av. yield per acre
bu.

Lodged stalks
pct.

Husk cover
rating1

Midsilk
mo.-da.

Test weight
lb./bu.

Harvest moisture
pct.

Croplan Genetics 827 Pioneer 3163 2 Dekalb DK 697 Dekalb DKC 68-70 Pioneer 32R25 Pioneer 31R88 Pioneer 3167 2 Funk’s DG 5516 Pioneer 31G98 Dyna-Gro 5516 RR Dyna-Gro 5515 TV 2140RR Croplan Genetics 7879 TV 2160BT Pioneer 32H58 Garst/AgriPro 8215 Dyna-Gro X15548 CG 818 Croplan Genetics 1167RR Dekalb DK 687 Croplan Genetics 743 Croplan Genetics 744BT Pioneer 32K61 Test Average L.S.D. (.05) C.V. (%)
1

143 136 134 129 129 126 125 124 124 121 117 117 116 112 110 108 103 102 97 97 93 89 79 114.4 33.6 20.8
2

5.0 1.0 1.0 1.0 9.0 4.0 4.0 3.0 5.0 12.0 5.0 8.0 5.0 5.0 2.0 13.0 1.0 4.0 3.0 3.0 2.0 0 2.0

1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1

– – – – – – – – – – – – – – – – – – – – – – –

59.5 56.9 60.2 59.5 55.7 58.8 56.7 58.6 56.3 57.4 58.1 56.3 58.5 58.9 61.4 57.4 61.6 60.0 59.0 59.1 57.1 60.2 63.1

15.9 15.6 15.0 13.6 15.7 14.4 17.4 14.9 15.4 11.8 15.6 14.0 16.2 14.3 16.2 15.7 16.1 15.3 13.2 15.2 14.4 13.4 15.7

1= Excellent; 5= Very poor.

Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

13

TABLE 13. TWO - AND THREE-YEAR YIELD AND LODGING AVERAGES FOR YELLOW CORN IN S OUTHERN A LABAMA , 1 1999-01
Brand name–hybrid ———Yield per acre, av.———
3-yr. (1999-01) bu. 2-yr. (2000-01) bu.

———Lodged stalks, av.———
3-yr. (1999-01) pct. 2-yr. (2000-01) pct.

Garst/AgriPro 9707 Funk’s DG 5516 Dekalb DK 687 SS 859 CL AgriPro HS 9843 Pioneer 3163 2 Pioneer 3167 2 Pioneer 32K61 Dekalb DK 697 SS 900 BT Pioneer 31R88 Pioneer 31G98 Garst/AgriPro 8251IT CG 818 Garst/AgriPro 8222IT
1

133 132 131 131 127 124 123 113 – – – – – – –
2

122 124 116 120 121 109 106 99 126 123 123 119 117 111 108

1.3 2.7 2.0 9.0 1.7 2.5 9.7 0.0 – – – – – – –

2.0 4.0 3.0 13.0 2.5 3.3 14.0 0.0 6.0 10.5 1.5 1.8 6.0 1.0 0.3

Fairhope and Brewton.

Standard hybrids for comparison.

14

ALABAMA AGRICULTURAL EXPERIMENT STATION

T ABLE 14. 2001 YIELD OF CORN HYBRIDS BY LOCATION AND REGIONAL AVERAGES OF HYBRID C HARACTERISTICS IN SOUTHERN ALABAMA
Brand name–hybrid Fairhope bu. Brewton bu. 135 130 127 133 125 124 143 127 131 123 119 132 128 134 124 124 131 135 122 123 121 125 94 127 128 104 98 124.5 17.1 9.8 Headland bu. 81 76 67 73 76 74 47 63 61 68 55 46 62 58 60 70 50 59 57 48 58 54 68 28 56 49 41 59.3 21.9 26.2 ——————2001 Regional Averages—————— Yield Lodged Test MidHusk Harvest per a. stalks weight silk cover moisture bu. pct. lb./bu. mo.-da. rating1 pct. 129 124 124 124 121 121 121 119 119 117 117 117 117 116 115 113 112 112 110 109 109 106 105 104 103 101 97 0 0 0.3 0.3 0.7 0.3 1.7 0.3 0.3 0.7 0.3 0.3 1.0 0.7 0.3 0.7 2.0 0.3 0.3 0.3 2.3 2.0 0.3 2.7 0.3 0.7 0.7 56.7 55.6 56.2 57.7 55.4 57.3 55.9 57.4 57.1 55.4 57.0 55.6 54.5 57.1 55.3 56.3 53.8 54.6 56.2 55.3 55.2 58.5 59.4 56.1 53.0 57.4 55.1 6-9 6-11 6-11 6-8 6-7 6-9 6-10 6-10 6-9 6-10 6-7 6-9 6-10 6-9 6-7 6-9 6-9 6-9 6-10 6-9 6-9 6-7 6-7 6-8 6-5 6-8 6-9 3 2 2 3 2 3 2 3 3 2 3 3 2 3 2 2 3 2 2 2 3 3 3 3 3 2 3 17.0 14.6 17.6 17.7 16.1 17.9 16.2 17.4 18.2 17.3 17.9 16.4 16.9 17.7 18.4 16.5 17.9 17.5 16.5 15.1 21.0 18.4 16.8 19.2 16.4 17.5 18.6

Pioneer 32R25 172 AgriPro HS 9843 166 Dekalb DKC 68-70 178 Dekalb DK 697 166 Funk’s DG 5516 164 TV 2160BT 165 Dyna-Gro 5515 172 Pioneer 31G98 167 SS 882CL 165 Dekalb DK 687 162 Croplan Genetics 7879 178 Garst/AgriPro 9707 173 Dyna-Gro 5518 RR 161 Pioneer 31R88 155 SS 900 BT 161 Dyna-Gro 5516 RR 146 SS 859 CL 156 TV 2140RR 142 Croplan Genetics 1167RR151 Garst/AgriPro 8251IT 157 Pioneer 3167 2 148 Pioneer 32H58 139 Pioneer 32K61 152 Pioneer 3163 2 157 Croplan Genetics 743 124 Garst/AgriPro 8222IT 150 CG 818 152 Test Avarage L.S.D. (.05) C.V. (%)
1

158.3 13.1 5.9
2

1= Excellent; 5= Very poor.

Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

15

TABLE 15. IRRIGATED CORN HYBRID PERFORMANCE AND CHARACTERISTICS, HEADLAND, A LABAMA,1 1999-01
Brand name–hybrid —Yield per acre/av.— 3-yr. 2-yr. 1999-01 2000-01 2001
bu. bu. bu.

—Lodged stalks, av.— 3-yr. 2-yr. 1999-01 2000-01 2001
pct. pct. pct.

————2001———— MidTest Husk Harvest -silk weight cover moisture
mo.-da. lb./bu. rating2 pct.

Garst/AgriPro 9707 Pioneer 3167 3 Funk’s DG 5516 Dekalb DK 687 SS 859 CL AgriPro HS 9843 Pioneer 32K61 Pioneer 3163 3 Pioneer 31G98 Pioneer 31R88 Dekalb DK 697 SS 900 BT Garst/AgriPro 8222IT Garst/AgriPro 8251IT CG 818 Pioneer 32R25 Dekalb DKC 68-70 Dyna-Gro 5518 RR Pioneer 32H58 Dyna-Gro 5516 RR Dyna-Gro 5515 SS 882CL TV 2160BT Croplan Genetics 1167RR Croplan Genetics 7879 Croplan Genetics 743 TV 2140RR Test Average L.S.D. (.05) C.V. (%)

177 176 173 168 167 166 166 162 – – – – – – – – – – – – – – – – – – –

175 183 174 174 169 170 173 166 191 185 176 172 164 164 155 – – – – – – – – – – – –

219 208 192 198 186 195 201 210 224 207 217 202 182 173 183 217 204 203 201 195 194 191 188 181 166 156 150 194.0 21.2 7.8

0.7 1.3 1.0 1.0 1.0 1.0 1.0 1.0 – – – – – – – – – – – – – – – – – – –

1.0 2.0 1.5 1.5 1.5 1.5 1.5 1.5 0.5 2.0 1.5 2.0 0.5 0.5 2.0 – – – – – – – – – – – –

1.0 2.0 0 0 0 1.0 1.0 0 1.0 0 2.0 1.0 0 0 0 0 1.0 1.0 1.0 0 2.0 0 0 0 1.0 1.0 0

6-12 6-12 6-13 6-14 6-14 6-14 6-10 6-12 6-10 6-15 6-10 6-14 6-12 6-12 6-10 6-12 6-14 6-12 6-10 6-10 6-16 6-14 6-14 6-10 6-14 6-7 6-14

57.1 57.3 56.8 56.6 56.0 58.2 58.1 56.1 57.1 58.1 58.4 56.7 58.7 58.1 56.0 57.0 57.1 56.2 58.9 57.2 57.2 58.3 59.1 57.5 58.0 59.6 55.1

2 2 2 1 2 2 1 2 2 2 2 2 2 1 2 2 2 3 2 2 1 3 2 1 1 3 2

12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7

1 The test received approximately 7.0 inches of irrigation water. hybrids.

2

1= Excellent; 5= Very poor.

3

Standard mid to late season

16

ALABAMA AGRICULTURAL EXPERIMENT STATION

TABLE 16. EARLY CORN HYBRID TEST
Brand name–hybrid —Yield per acre/av.— 3-yr. 2-yr. 1999-01 2000-01 2001
bu. bu. bu.

AT

FAIRHOPE

IN

S OUTHERN ALABAMA , 1999-01
————2001———— MidTest Husk Harvest -silk weight cover moisture
mo.-da. lb./bu. rating1 pct.

—Lodged stalks, av.— 3-yr. 2-yr. 1999-01 2000-01 2001
pct. pct. pct.

Pioneer 3245 130 Pioneer 32K61 126 Pioneer 3394 125 Dekalb DKC65-25 – Croplan Genetics 721 – Pioneer 32H58 – Dekalb DKC61-24 – Pioneer 34B28 –
2

112 108 107 – – – – –

148 126 130 143 127 120 118 104 126.9 17.1 9.2

0.7 0.3 0.3 – – – – –

0.5 0.5 0.5 – – – – –

0 0 0 0 0 0 0 0

5-29 5-30 5-27 5-29 5-30 5-28 5-28 5-29

59.7 59.9 58.4 57.6 56.1 58.8 57.7 57.6

3 2 3 3 3 3 3 3

21.1 19.8 17.3 19.5 19.5 21.5 18.7 19.9

Test Average L.S.D. (.05) C.V. (%)
1

1= Excellent; 5= Very poor.

2

Standard mid to late season hybrids.

TABLE 17. CHARACTERISTICS OF CORN HYBRIDS TESTED ONE YEAR IN PRELIMINARY TEST AT FAIRHOPE IN SOUTHERN ALABAMA, 2001
Brand name–hybrid Av. yield per acre
bu.

Lodged stalks
pct.

Husk cover
rating1

Midsilk
mo.-da.

Test weight
lb./bu.

Harvest moisture
pct.

Pioneer 3163 Pioneer 3167 2 Croplan Genetics 767RR Croplan Genetics 827 Croplan Genetics 683 Kaystar X 1181 Croplan Genetics 733BT Garst/AgriPro 8288 Dyna-Gro X15548
2

150 147 140 140 136 134 133 122 120 135.7 17.9 9.0
2

0 0 0 0 0 2.0 0 0 0

2 3 3 3 3 3 4 2 2

6-1 6-1 6-2 6-2 5-30 6-1 5-28 5-30 62

58.2 57.5 55.8 56.0 58.0 58.0 55.0 56.3 59.0

23.4 28.7 19.6 24.1 18.4 20.7 18.7 24.6 22.3

Test Average L.S.D. (.05) C.V. (%)
1

1= Excellent; 5= Very poor.

Standard hybrids for comparison.

EVALUATIONS OF CORN HYBRIDS IN ALABAMA, 2001

17

TABLE 18. G ROWING SEASON RAINFALL, 1999-01
————————Monthly rainfall (inches)————————
Test location Year Mar. Apr. May June July Aug. Sept.

7-month
total

Belle Mina ................... 2001 2000 1999 Crossville .................... 2001 2000 1999 Tallassee ..................... 2001 2000 1999 Shorter ........................ 2001 2000 1999 Prattville ..................... 2001 2000 1999 Marion Junction ......... 2001 2000 1999 Brewton ....................... 2001 2000 1999 Fairhope ...................... 2001 2000 1999 Headland ...................... 2001 2000 1999

5.8 5.5 5.1 8.4 5.1 3.8 16.1 5.5 5.9 13.8 4.7 4.7 13.1 4.7 4.9 11.5 4.2 6.3 16.0 3.9 8.1 8.7 4.1 5.8 12.6 3.3 3.3

3.9 8.6 3.8 2.7 7.1 3.5 5.2 3.6 1.4 6.0 2.2 1.9 3.8 2.8 1.7 5.4 4.3 0.8 3.0 1.6 1.6 0.3 1.1 0.1 2.5 0.5 1.2

6.4 0.7 4.7 5.2 1.7 4.4 5.5 1.7 3.6 3.6 1.8 3.3 2.9 0.6 3.2 2.5 0.8 1.3 1.5 4.1 5.5 0.6 0.7 3.2 2.1 0.1 6.0

8.8 4.1 6.5 1.0 4.9 10.5 5.8 1.6 12.2 7.1 1.6 9.2 5.1 2.6 9.6 5.3 2.7 12.1 9.5 8.6 9.2 13.8 4.2 8.3 11.6 1.8 5.9

4.3 0.7 3.6 4.7 0.9 6.1 4.2 3.1 3.1 3.1 1.0 3.5 4.0 2.4 10.7 4.1 0.8 5.2 4.8 3.4 12.1 15.7 3.2 9.7 3.3 1.3 4.1

3.2 2.7 0.2 4.5 1.7 1.6 4.7 3.5 1.9 2.4 2.4 2.4 9.6 1.1 2.6 6.6 2.2 1.3 7.8 4.4 7.9 0.1 3.0 6.0 3.9 2.6 1.1

5.6 1.7 0.6 3.7 4.0 1.7 1.0 4.9 4.0 1.6 3.9 2.1 2.4 7.3 1.8 3.7 4.1 3.3 3.4 5.5 2.8 4.7 9.5 2.3 3.7 6.1 1.5

38.0 24.0 24.5 30.2 25.4 31.6 42.5 23.9 32.1 37.6 17.6 27.1 40.9 21.5 34.5 39.1 19.1 30.3 46.0 31.5 47.2 43.9 25.8 35.4 39.7 15.7 23.1

18

ALABAMA AGRICULTURAL EXPERIMENT STATION

T ABLE 19. SOIL TYPES
Test location

FOR

CORN TRIALS, 2001
Soil type

North Belle Mina ......................................................... Decatur silt loam Crossville .......................................................... Wynnville fine sandy loam Central Tallassee ............................................................ Cahaba loamy sand Shorter ............................................................... Norfolk sandy loam Prattville ............................................................ Lucedale fine sandy loam Marion Junction ................................................ Vaiden clay South Brewton ............................................................. Benndale fine sandy loam Headland ........................................................... Dothan sandy loam
Fairhope ................................................................ Malbis fine sandy loam

SOURCES
Seed company

OF

2001 C ORN H YBRID TEST SEED
Seed company Brand

Brand

Croplan Genetics P.O. Box 146 Blytheville, AR 72316 Garst/AgriPro Seeds 761Walnut Knoll Lane Memphis, TN 38018 Monsanto Company 3100 Sycamore Road DeKalb, IL 60115 Panner Seed Inc. P.O. Box 947 Huron, SD 57350

Croplan Genetics

Pioneer Hi-Bred Int., Inc. 6767 Old Madison Pike Huntsville, AL 35806 Southern States Coop 6606 West Broad St. Richmond, VA 23230 Terral Seed P.O. Box 826 Lake Providence, LA 71254 UAP Southeast 25324 HSV-Brownsferry Rd Madison, AL 35756

Pioneer

Garst, AgriPro Dekalb DK

SS

TV

Kaystar

Dyna-Gro