西南林业大学学报2018，Vol.38Issue(3)：36-43,8.DOI:10.11929/j.issn.2095-1914.2018.03.006
锥栗主栽农家品种表型性状变异及选择研究
Variation and Selection of Important Quantitative Traits in Castanea henryi Cultivars
摘要
Abstract
The variation of fruit and leaf,nutrient content,growth and yield were analyzed among 17 Castanea henryi cultivars. Results showed that there was a rich variation between different cultivars and a certain correlation between the phenotypic traits. The potential for selection and the joint selection of phenotypic traits was large. The variation coefficient was between 8.91% and 64.29%,with an average of 27.32%. The lowest variation coefficient was the content of starch,and the largest was the yield per plant.The highest correlation coefficient was 0.828,be-tween yield and knot bracteal number. The repeatability of each trait was high with an average of 0.805. Through the comprehensive evaluation of phenotypic traits,the top 3 were'Wuzhen','Youzhen' and'Chushuhong'.Based on fruit nutrient content and yield,'Chushuhong','Wuzhen' and 'Dajianzui' showed superior grades. Clustering results showed that 17 cultivars were divided into 4 classes. 'Chushuhong' was in the first class;'Youzhen' was in the second class;There were 4 cultivars in the third class: 'Dabaozhen', 'Tiezhui', 'Dajianzui' and 'Hongz-izhen';There were 11 cultivars in the fourth class:'Huangzhen','Bailuzi','Xiaojianzui','Niujiaozi (late ma-ture)','Shuangfengzi','Niujiaozi (middle mature)','Zhongjianzui','Youtongzi','Wuzhen','Wukechang-mang' and 'Ouningzi'. The results laid the foundation for breeding new varieties with high yield and quality.关键词
锥栗/农家品种/表型性状/变异/选择Key words
Castanea henryi/cultivars/phenotypic traits/variation/selection分类
农业科技引用本文复制引用
李颖林,董蒙蒙,陈辉,李煜,郑国华,顾光仕,郑芳奕..锥栗主栽农家品种表型性状变异及选择研究[J].西南林业大学学报,2018,38(3):36-43,8.基金项目
"十二五"农村领域国家科技计划课题子项目(2013BAD14B0405)资助 （2013BAD14B0405）
福建省自然科学基金计划项目(2017J01610)资助 （2017J01610）
福建农林大学科研启动经费项目(61201400817)资助 （61201400817）
福建省科技平台建设项目(2010N2001)资助. （2010N2001）
