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根据31个甘蓝型油菜(Brassica napusL.)品种和品系的随机区组试验结果,估算和分析了株高、一次有效分枝数、主序长、角果密度、分枝与主茎夹角及单株粒重等6个农艺性状的遗传变异系数、遗传力、遗传进度、遗传相关系数和遗传通径系数,得出结论:一次有效分枝数是油菜育种中最重要的间接选择性状.最后还讨论了上述性状遗传参数估算与环境的关系及其在育种中应用等问题。
Based on the randomized block test results of 31 Brassica napus varieties and lines, the plant height, the number of effective primary branches, the main sequence length, the density of pod fruit, the angle between branch and main stem, The results showed that the effective number of branches was the most important indirect selection trait in rapeseed breeding. Finally, Also discussed are the genetic parameters of the traits and the relationship between the environment and its application in breeding and other issues.