Soybean Yield along the Texas Gulf Coast during Periods of Variable Rainfall as Influenced by Soybean Cultivar and Planting Date
Table 6
Yield response of soybean cultivars to planting dates in Wharton and Victoria Counties, 2009.
Cultivar
Wharton
Victoria
MG
24 March
7 April
24 April
23 March
6 April
21 April
Kg/ha
AG 4907RR
IV
1708
1477
592
1433
1668
1359
AG 5304RR
V
1903
1380
673
1648
1802
1372
AG 5503RR
V
1513
1523
464
1251
1433
955
AG 5606RR
V
1506
1131
430
1540
1533
605
AG 5803RR
V
1520
1184
390
1668
1567
861
Croplan 4955RR
IV
1708
1297
302
1574
1802
1527
Croplan 4998RR
IV
1789
1455
699
1412
1453
1251
DG 36Y48RR
IV
1291
1107
0
1292
1332
1076
DG 37P49RR
IV
1849
1350
544
1292
1480
1278
DK 4866RR
IV
1688
1342
673
1433
1661
1466
DK 5068RR
V
1776
1387
673
1722
1957
1594
DP 4888RR
IV
1755
1417
699
1594
1722
1500
DP 5335RR
V
1964
1779
773
1634
1594
1318
HBK 494LL
IV
1513
1372
673
1533
1628
1291
HBK 4926 (C)
IV
1379
927
491
1513
1406
1251
HBK 5025 (C)
V
1694
1311
437
1681
1587
1177
HBK 5941 (C)
V
787
799
0
1634
1406
841
HBK 5123RR
V
1096
965
0
1473
1601
733
HBK 5425RR
V
1385
1417
182
1634
1776
767
NKS 48C9RR
IV
1715
1477
–
1587
1634
1446
NKS 49W6RR
IV
1883
1515
545
1661
1930
1285
NKS 51T8RR
V
1722
1493
800
1419
1607
1453
Pioneer 94Y90RR
IV
1473
1161
773
1513
1466
1258
Pioneer 95Y20RR
V
1130
1040
747
1406
1547
1318
TV 46R19RR
IV
1601
1229
592
1506
1715
1480
TV 49R17RR
IV
1332
1056
0
1190
1412
1412
TV 54R28RR
V
2092
1515
491
1419
1385
962
TV 55R15RR
V
1695
1606
673
1695
1560
679
Vernal (C)
592
694
0
1264
1190
639
LSD (0.05)
166
155
Abbreviations: (C), conventional cultivars; LL, Liberty Link cultivars; MG, maturity group; RR, Roundup-Ready cultivars. A “—” indicates cultivar not harvested; “0” indicates no yield for that cultivar. Vernal is not grouped into any maturity group (A. Scott, personal communication).
