The epistatic QTL for seed reserve utilization related traits in joint analysis of three germination stages.

aSDW: seedling dry weight; WMSR: weight of mobilized seed reserve; SRUE: seed reserve utilization efficiency;bChromosome on which the QTL was located;cA represents the estimated additive effect of epistatic QTL, and AD1, AD2 and AD3 represents the additive effects of epistatic QTL at day 6, 10 and 14 of germination, respectively; Its positive value indicates that two loci genotypes being the same as those in parent Jiucaiqing (or IR26) take the positive effects, while the two-loci recombinants take the negative effects;dr2 (A) and r2 (AD) represents the phenotypic variation explained by the epistatic QTL and epistatic QTL × development interactions, respectively;**indicates significance at the level of 1%.