Research Article

Soybean Yield along the Texas Gulf Coast during Periods of Variable Rainfall as Influenced by Soybean Cultivar and Planting Date

Table 4

Yield response of soybean cultivars to planting dates in Wharton and Victoria Counties, 2007.

WhartonVictoria
17 April2 May28 Mar16 April1 May

Kg/ha
DP 4888RR4.82770330225962515955
DP 4919RR4.928453934319423141802
DP 5110S (C)5.12932380620382018955
DP 5115RR5.12838322825422455955
DP 5335RR5.32851345028381856538
DP 5414RR5.43854388726831809955
DG 31R54RR5.43161325524681029538
DG 33B52RR5.23463390129932024955
DG 33P54RR5.43047365922801695538
DG 33Y45RR4.525153349269724822246
DG 3463RR4.618362643271728991903
DG 39F51RR5.13807367929192475955
HBK 4924RR4.93806358531472603955
HBK 4926 (C)4.93786327526701520982
HBK 5025 (C)5.04916446624351856538
HBK 5123RR5.13638392125292314955
HBK 5425RR5.43242343733961150538
HBK 5894 (C)5.83914322120841668538
HBK 5941 (C)5.94291343724951675538
NC+ 4A42RR4.227233140276422871587
NC+ 4A81RR4.830463147205123881769
NC+ 4A65RR4.629593275202425762065
NC+ 5A15RR5.13706351728991910955
NKS 46U6RR4.634433739240821451769
NKS 49H7RR4.93564382725292246955
NKS 49Q9RR4.93921392123882293955
NKS 49W6RR4.93867404930262690955
NK 452 (C)5.230133275279122191130
Pioneer 94M71RR4.733763975201825011870
Santa Rosa (C)00000
UA 4805 (C)4.832353975220616281197
Vernal (C)171535642421538538
LSD (0.05)356309

Abbreviations: (C), conventional cultivars; MG, maturity group; RR, Roundup-Ready cultivars.
Santa Rosa and Vernal are not grouped into any maturity group (A. Scott, personal communication). No yield obtained with Santa Rosa.