3.3. Detailed effects of the experimental factors as illustrated
with RGRA (our proxy trait for performance)
RGRA across cultivation status: wild, feral and
cultivated
The relative effect of drought on RGRA was rather
similar across cultivation status (Table 4), hence confirming the
finding in Table 4 (no significant main effect and interaction effects
for cultivation status on RGRA). In absolute terms,
under ample-water conditions, wild genotypes had the highest
RGRA which was significant, but only modestly, (5.7 %)
higher than the lowest RGRA, which was observed among
the cultivated genotypes (Table 4). Under restricted-water treatment,
wild genotypes still had the highest RGRA which was 5 %
higher than the lowest RGRA observed among feral
genotypes (Table 4).