Table 5 Conditional Wald statistic tests for fixed effects of the TF predictive model incorporating QTL × Environment interactions
Fixed TermWald StatisticDegrees of Freedom (d.f.)Wald/d.f.P-Value
Day1011.7911011.79<0.001
Srad91.17191.17<0.001
Tmax761.861761.86<0.001
Tmin273.001273.00<0.001
TF1104.951104.95<0.001
TF2195.361195.36<0.001
TF368.54168.54<0.001
TF415.06115.06<0.001
TF50.1210.120.728
TF639.88139.88<0.001
TF741.02141.02<0.001
TF811.32111.32<0.001
TF940.46140.46<0.001
TF1010.74110.740.001
TF1111.59111.59<0.001
TF123.0613.060.08
TF1 × TF26.6416.640.01
Tmin × TF2117.081117.08<0.001
Day × TF3224.121224.12<0.001
Tmin × TF331.58131.58<0.001
Tmax × TF514.31114.31<0.001
Day × TF731.63131.63<0.001
Srad × TF127.7917.790.005
Day × TF129.5319.530.002
  • The model has 12 QTL (TF1–TF12) and four environmental factors averaged over the time span between planting and first anthesis of the last genotype at each site. Tmin (avg. minimum temperature, °), Tmax (avg. maximum temperature, °), Day (avg. day length, hr), and Srad (avg. solar radiation, MJ m−2 d−1).