用模糊综合评判方法筛选甘蔗优良杂交组合

Screening Elite Sugarcane Cross Combinations by Fuzzy Comprehensive Judgment Method

为直观地对甘蔗杂交组合进行筛选及评价,选择对甘蔗杂交组合优劣影响最大的四个因素(锤度、株高、茎径、有效茎),以2009年广西甘蔗研究所实生苗的24个亲本杂交组合为研究对象,采用模糊综合评判方法,研究锤度、株高、茎径、有效茎的相互作用对24个甘蔗杂交组合的影响,从中筛选出优的甘蔗杂交组合1个(ROC24×粤糖91-976),较优的甘蔗杂交组合10个(ROC1×ROC22、ROC1×桂糖96-211、桂糖92-66×湛蔗92-126、粤糖91-976×ROC1、桂糖92-66×福农91-4621、桂糖94-119×CP74-383、粤糖89-113×HoCP93-750、ROC10×崖城94-46、崖城99-31×ROC22、桂糖92-66×桂糖00-245),这些组合可用到今后的育种实践。

Brix,stalk height,stalk diameter,and number of millable stalks were the four main parameters that determine the quality of sugarcane cross combinations.In order to screen out elite sugarcane cross combinations for future breeding programs,the four parameters were tested and then analyzed by fuzzy comprehensive judgment method in seed seedlings of 24 sugarcane cross combinations from the Hybrid Nursery of Guangxi Sugarcane Research Institute.The results showed that,ROC24×YT91-976 was the best combination,and another 10 combinations were good viz.,ROC1×ROC22,ROC1×GT96-211,GT92-66×Zhanzhe92-126,YT91-976×ROC1,GT92-66×Funong91-4621,GT94-119×CP74-383,YT89-113×HoCP93-750,ROC10×Yacheng94-46,Yacheng99-31×ROC22 and GT92-66×GT00-245.These above-mentioned cross combinations could be planted for future breeding practice.