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利用晋南大面积推广优良品种作亲本,配制一套6×6完全双列杂交组合,分析了6个农艺性状的遗传组成与杂种优势的关系,结果表明:冬小麦各性状存在着不同程度的杂种优势效应,其优势的表达由加性基因、非加性基因和母本细胞质基因共同控制。
A total of 6 × 6 full diallel cross combinations were constructed using the large-scale popularization of superior varieties in southern Shanxi as the parents to analyze the relationship between the genetic composition and heterosis of six agronomic traits. The results showed that there were different degrees of heterosis in the traits of winter wheat Effect, whose dominant expression is controlled by additive genes, non-additive genes and maternal cytoplasmic genes.