甘薯主要性状遗传变异趋势及其相关分析

来源 :河南农业大学学报 | 被引量 : 0次 | 上传用户:Phoenix164
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结果表明:单株薯重的遗传,由加性效应和非加性效应控制,双亲产量对后代有重大影响;烘干率主要受基因的加性效应所制约,遗传力强;分枝数受多因素影响,遗传力较强;最长蔓长对后代有一定影响;抗根腐病性属多基因控制,以加效应为主,同时又受非加性效应影响,遗传力较强。分枝数、薯数、茎叶重对产量性有直接影响,并为正值。烘干率、最长蔓与产量关系不大;茎叶重与烘干率呈不显著的负相关,二者关系不大。 The results showed that the inheritance of single potato weight was controlled by the additive effect and non-additive effect, and the parental yield had a significant impact on the offspring. The drying rate was mainly controlled by the additive effect of the gene, and the heritability was strong. The number of branches Multi-factor influence, heritability stronger; the longest vine length have a certain impact on future generations; anti-root rot is a multi-gene control, mainly to add effect, at the same time by the non-additive effect, strong heritability. The number of branches, the number of tubers, the weight of stems and leaves had a direct impact on the yield, and were positive. Drying rate, the longest vine and yield little correlation; stem leaf weight and drying rate showed no significant negative correlation between the two.
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