Generalized linear mixed models predicting maize landrace grain weight per emerged seedling jointly from physiological measurements, stomatal conductance (gs), Light Use Efficiency (LUE), relative growth rate (RGR), and experimental factors in year 1.

Fixed factor degrees of freedom list values for numerator and denominator df. Random factors are tested with a log likelihood. Continuous predictors include regression coefficients (β) quantifying the relationship of each to maize grain weight.