Table 5 Variance component analysis for varieties profiled in Figure 3.

% of Total a Source of s2 All 13 Varieties Excluding NuCOTN 33B & DP 458B/RR Variety 51.34 0 Date 3.88 0 Date x Site 6.15 15.69 Date x variety 5.11 2.09 Rep x Variety 0.53 0 Rep x Date(Site) 13.31 34.74 Rep x Date x Variety 0 0 Rep x Variety x Site 0.17 3.71 Rep(Site) 0 0.19 Site 0 0.33 Variety x Site 0 0 Date x Variety x Site 0 0 Residual 19.51 43.25

a Variance component estimates expressed as a percent of total variance.