湖南农业大学学报（自然科学版）2017，Vol.43Issue(6)：590-596,7.DOI:10.13331/j.cnki.jhau.2017.06.003
CP系列甘蔗亲本及杂交组合育种潜力分析
Analysis on breeding potential of series of CP parents and their cross combinations in sugarcane
摘要
Abstract
42 cross combinations, which come from the crossing with 15 parents of CP series and 21 varieties clones developed in China, were used as materials. The coefficient of variation (CV), heritability, combining ability and economic breeding or genetic values of the main characters, such as plant height, stalk diameter, brix, millable stalk per stool, cluster weight, sugar yield per stool of F1 populations were analyzed by R software. The results showed that: the coefficients of phenotype variation (PCV) were larger than the coefficients of genetic variation (GCV) in the coefficients of average variation of six traits, and the variations of millable stalk per stool, cluster weight and sugar yield per stool were larger than the variations of plant height, stalk diameter and brix; the average heritability of six traits was the highest (42.53%) in the combinations, 34.35% in female parent and 27.07% in male; all traits were more affected by female except plant height and stalk diameter; all traits of combinations were higher than those of their parents except the traits of brix and millable stalk per stool, which were between the male and the female. The parents of CP, HoCP95-988 (as female and male), CP72-1210 (as female), CP85-1491 (as female), HoCP92-648 (as female), CP72-2086 (as male), CP84-1198 (as male), CP93-1382 (as male), CP94-1100 (as male) had better general combining ability (GCA) and economic breeding value (EBV) than the others. The combinations, CP72-1210×ROC24, CP85-1491×ROC22, HoCP92-648×Guitang92-66, Funong95-1702×HoCP95-988, Yuetang91-976×HoCP95-988 had better special combining ability (SCA) and economic genetic value (EGV) than the others.关键词
CP系列甘蔗亲本/遗传力/配合力/经济育种值/经济遗传值Key words
series of CP parents/heritability/combing ability/economic breeding value/economic genetic value分类
农业科技引用本文复制引用
姚丽,覃伟,赵培方,刘家勇,赵俊,武晋宇,吴才文..CP系列甘蔗亲本及杂交组合育种潜力分析[J].湖南农业大学学报（自然科学版）,2017,43(6):590-596,7.基金项目
国家现代农业产业技术体系专项(CARS-170101) （CARS-170101）
云南省甘蔗遗传改良重点实验室开放课题(2015DG015-07) （2015DG015-07）
云南省科技创新人才计划项目(2014HC015) （2014HC015）
云南省重大科技专项(2015ZA001) （2015ZA001）
云南省科技惠明计划(农业)项目(2014RA059) （农业）
