黄瓜疫病抗性遗传研究
Studies on Resistant Heredity of Cucumber Blight
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摘要: 以对疫具有不同抗级的5个黄瓜亲本进行全互交,应用Hayman模型对抗 进行分析,结果表明:黄瓜疫病抗性遗传效应的组成中以加性效应为主,也存在部分怀和上位性效应;控制抗笥的最少基因数目为3对;皑生的狭义遗传力为78%。Abstract: Studies were conducted on resistant heredity of cucumber blight through dill crossing with cucumber cultivars either resistant or susceptible to cucumber blight. The results showed that the additive effect was the predominant component., although some dominant effect and epistasis effect were present. Resistance to cucumber blight was controlled by at least 3 pairs of genes. The narrow hereditary capacity is 78%.