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利用5个油分含量不同的亲本配成5个组合,研究其F_2—F_5油分含量的遗传基因作用方式和遗传参数。结果表明,大豆油分含量遗传以基因的加性效应为主,但有一定的显性效应。后代平均表现与双亲均值呈显著或极显著正相关。大豆油分含量的遗传力一般中等偏高,且随着世代的升高而增加。各组合F_2—F_5油分含量变异系数和遗传进度较大。
Five parents with different oil content were used to study the genetic mode of action and genetic parameters of F_2-F_5 oil content. The results showed that the inheritance of soybean oil content was dominated by gene additive effect, but it had a certain dominant effect. The average performance of offspring and parents were significant positive or significant positive correlation. The heritability of soybean oil content is generally moderately high, and increases with generations. The coefficient of variation and genetic progress of F_2-F_5 oil content in all combinations were large.