广西林业科学2018，Vol.47Issue(1)：1-5,5.
岑溪软枝油茶2代育种群体遗传变异及早期选择
Genetic Variation and Early Selection of the Second Generation Breeding Population of Cenxi Soft-branch Camellia oleifera
摘要
Abstract
Growth and reproductive traits in the second generation breeding population of Cenxi soft-branch Camellia oleifera were studied in 4-year-old Cenxi soft-branch Camellia oleifera to analyze genetic variation and early genetic selection. Results showed that the individual fruit number,the ground diameter,height, crown width and individual flower bud number were 9.99,39.16 cm,169.04 cm,1.93 m2and 389.27,re-spectively.Differences in individual fruit number in different families was significant(P<0.05),while differ-ences in other 4 indexes were extremely significant(P<0.01).The ground diameter,height,crown width and individual flower bud number were found to be under strong genetic control with individual heritability from 0.90 to 0.96,and individual heritability of fruit number was only 0.15. A total of 13 superior families were selected such as Cenxi 2,and the genetic gains of ground diameter,height,crown width,individual flower bud number reached 10.41%,7.17%,19.21% and 54.06%,respectively.23 superior individual trees were selected and the genetic gains of ground diameter,height,and crown width were 29.80%,22.27% and 86.71 %,respectively,which was significant.关键词
岑溪软枝油茶/2代育种群体/家系/遗传力/早期选择Key words
Cenxi soft-branch Camellia oleifera/second generation breeding population/family/heritabili-ty/early selection分类
农业科技引用本文复制引用
曾雯珺,夏莹莹,谢少义,吴艺梅,张乃燕..岑溪软枝油茶2代育种群体遗传变异及早期选择[J].广西林业科学,2018,47(1):1-5,5.基金项目
广西科学研究与技术开发计划项目(桂科攻1598006-3-9) （桂科攻1598006-3-9）
广西自然科学基金项目(2011GXNSFB01803) （2011GXNSFB01803）
"广西特色经济林开花生理研究"特聘专家岗位专项 （）
