Table 7 Examination of 2009 data set for main effects of sol, lcf, and location as well as genotype x environment (GxE) interactions calculated for leaf area, treating locations separately
Model ParametersLeaf Area, CA OnlyLeaf Area, IN1 OnlyLeaf Area, IN2 Only
DFaSSF RatioP ValueDFSSF RatioP ValueDFSSF RatioP Value
lcf (nbp1)10.5060.4210.520122791.249.050.0048***127504.469.3140.0041**
sol (umc2145)16.765.6200.022*194779.0737.62<0.0001***194848.2932.12<0.0001***
lcf x solb10.1030.0860.771140394.1416.030.0003***149433.7316.740.0002***
Whole model37.242.010.1273114191.1715.11<0.0001***3120441.3813.60<0.0001***
Error4351.7033690692.9838112215.33
Total4639204884.1541232656.71
  • a DF is the degrees of freedom for each parameter in the model. The full model and error DFs are included.

  • b x indicates interaction between two or more parameters within the model. Genotype of sol and lcf were used for genotype x environment (GxE); IN and CA define the location parameter. Main effects and interactions were calculated using a Standard Least Squares model (JMP, version 8.0.1, SAS Institute Inc., 2009).

  • * Denotes statistical significance at α = 0.05.

  • ** Denotes statistical significance at α = 0.01.

  • *** Denotes statistical significance at α = 0.001.