对六十四个具有T.timopheevi细胞质杂交组合杂种一代的优势指数、竞争优势、生产优势和相对的优势的统计分析,明确T质同质杂种一代,完全显性和部分显性的表现程度。以简单相关与回归,明确杂种一代亲子间遗传行为,从而看出高产组合的千粒重、单株有效穗数和主穗结实粒数三个主要性状间的互补关系,为进一步选配高产组合提供依据。 Sixty-four statistical analysis of the dominant index, competitive advantage, production superiority and relative advantage of hybrid generation with T.timopheevi cybrids confirmed the expression of T homozygous hybrids with complete dominant and partial dominant. With simple correlation and regression, the genetic behavior between parents and offspring of the hybrid generation was clarified, and the complementary relationship among the three main characters of 1000-grain weight, effective panicles per panicle and main grains per panicle was found, which provided the basis for further selection of high yield combinations .