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以6个杂交组合的F_2、F_1；群体及相应的亲本为材料，对组合F_2代的生物学产量、收获指数等性状的遗传相关性进行了分析，测定了各性状的广义遗传力值，计算和分析了各性状对单株粒重的相关遗传进度。结果表明；（1）生物学产量、收获指数与单株粒重有较高的遗传正相关，生物学产量、收获指数间具有中低度遗传负相关。性状间的遗传相关性表现因组合不同而不同。（2）收获指数、株高的广义遗传力值较高，而生物学产量、单株粒重的广义遗传力值较低。广义遗传力值因组合不同而表现有差异．（3）株高、生物学产量对单株粒重的相关遗传进度（相对值）均小于100％．收获指数对单株粒重的相关遗传进度（相对值）平均为110％．并且在生物学产量表现高的组合，其相关遗传进度（相对值）更高，达140％以上。
The genetic correlations of biological yield, harvest index and other traits of F 2 generations of combinations were analyzed by F_2, F_1 population and their corresponding parents in six hybrid combinations. The generalized heritability of each trait was calculated and calculated And analyzed the relative genetic progress of each trait on grain weight per plant. The results showed that: (1) The biological yield and harvest index had a high genetic positive correlation with grain weight per plant, and the genetic yield and harvest index had a low and intermediate genetic correlation. The genetic correlation between traits varies with the combination. (2) Harvest index, the general heritability of plant height is higher, and biological heritability, the general heritability of grain weight per plant is lower. Generalized heritability values vary due to different combinations. (3) The relative genetic progress (relative value) of plant height and biological yield to grain weight per plant was less than 100%. The relative genetic progress (relative value) of harvest index to grain weight per plant averaged 110%. And in the combination of high biological yield, the related genetic progress (relative value) is higher, reaching more than 140%.