湖南农业大学学报（自然科学版）2016，Vol.42Issue(5)：472-479,8.
甘蔗家系的遗传测定与选择
Genetic determination and selection of sugarcane families
摘要
Abstract
Sugarcane family evaluation with 108 of 2013–2014 hybridized combinations was conducted for one plant crop and one ratoon crop. Stalk height, stalk diameter, stalk number per stool and brix were investigated in both plant cane and ratoon cane, while weight per stool and brix weight per stool were measured only in plant cane. Genetic variation and genetic parameters of all traits were analyzed, and the families were evaluated by comprehensive index method. The results showed that stalk height in plant and ratoon, stalk diameter in plant and ratoon, stalk number per stool in plant, brix in plant and ratoon, weight per stool and brix weight per stool were significantly different among the families. Stalk height, stalk diameter, stalk number per stool of plant crop performed higher level of broad-sense heritability, genetic variation coefficient and relative genetic than those in ratoon crop. But there were no significantly difference in broad-sense heritability, genetic variation coefficient and relative genetic of brix between plant crop and ratoon crop. Analysis of phenotypic and genotypic correlation showed that weight per stool was significantly correlated with brix weight per stool. Fifteen elite families including Zhanzhe74–141×CP72–1210, Guitang05–3081× Yuetang91– 976, Yunzhe02–588×ROC22, Funong39×Guitang03–1229, Guitang02–901×Guitang03–2357, Guitang05–2743× Guitang03– 1229, Guitang92–66×ROC22, Dezhe93–88×ROC22, Guitang05–3445×Guitang03–2309, Yuetang00–319× CP72–1210, Guitang03–3089×ROC22, Yuetang91–976×CP84–1198, Yuefu90–95×CP72–1210, Yunzhe99–601×Guitang00–122, Yuetang00–236×ROC22 were selected based on comprehensive index method, and weight per stool and brix weight per stool showed greater genetic gain. The families selected by comprehensive index selection were not completely the same as the families selected by brix weight per stool, the rank correlation coefficient of thefamilies selected from comprehensive index selection and brix weight per stool selection was 0.748 (P<0.01).关键词
甘蔗/家系/遗传参数/指数选择Key words
sugarcane/family/genetic parameter/index selection分类
农业科技引用本文复制引用
唐仕云,谭宏伟,杨丽涛,杨荣仲,王伦旺,张保青,邓宇驰,杨翠芳,周珊,贤武,谭芳..甘蔗家系的遗传测定与选择[J].湖南农业大学学报（自然科学版）,2016,42(5):472-479,8.基金项目
甘蔗产业技术体系建设专项(CARS-20-1-3)；广西科学研究与技术开发计划项目(桂科攻1598006-1-1A)；广西壮族自治区甘蔗育种专项；广西农业科学院基本科研业务专项(桂农科2014YZ02、2015JZ01、2015JZ02、桂农科2016YM03)；广西农业科学院科技发展基金(2015JM05)；广西农业科学院科技成果转化项目(农成转2016001) （CARS-20-1-3）
