Variance analysis of combining abilities and genetic parameters estimation of agronomic traits.

*P**PVA (additive variance) and VD (dominance variance) were always significant (Pa.d.d and h2N indicate the average dominance degree and narrow-sense heritability, respectively.For a description of agronomic traits see materials and methods.

PVA（additive variance，加性方差）与VD（dominance variance，显性方差）始终具有统计学显著性；其中Pa.d.d与h2N分别代表平均显性度与狭义遗传力。农艺性状的具体描述详见材料与方法部分。