灰色关联度分析在甘薯高淀粉育种上的应用

Application of Relevancy Analysis of Gray System in High Starch Breeding of Sweet Potato

应用灰色系统理论中的关联度分析法探讨甘薯主要性状对淀粉产量的影响程度。结果表明,甘薯主要性状与淀粉产量之间的关联度依次为:烘干率〉中薯率〉鲜薯产量〉成薯数〉分枝数〉蔓长〉蔓粗〉大薯率。

We research the relation of each traits with starch yield by the relevance analysis of gray system. The result show that the relevancy degree of each traits with starch yield is: that the drying rate is largest for starch yield, followed by in order the midding root rate, the yield of fresh root,the big and middle root number, branches, vine length, stem diameter, the big root rate.