Main results for the mixed analysis for each treatment of the periodic drought-stress experiment.

F tests for the fixed effect of block (B), and for the covariates of days for germination (DG) and height at the beginning of the experiment (H2), estimates of variance components of the random effects and their significance based on likelihood ratio tests, individual () and family means () heritability estimates and their standard errors, coefficients of additive genetic variance (), and values of phenotypic differentiation among populations a () and their standard errors.