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

作　　者：李颖林[1] 董蒙蒙 陈辉[1] 李煜 郑国华 顾光仕 郑芳奕 Li Yinglin;Dong Mengmeng;Chen Hui;Li Yu;Zheng Guohua;Gu Guangshi;Zheng Fangyi(nstitute of Economic Forestiy,Forestiy College, Fujian Agriculture and Forestiy Lniversity, Fuzhou Fujian 350002,China)

机构地区：[1]福建农林大学林学院福建农林大学经济林研究所,福建福州350002

出　　处：《西南林业大学学报（自然科学）》2018年第3期36-43,共8页Journal of Southwest Forestry University：Natural Sciences

基　　金："十二五"农村领域国家科技计划课题子项目(2013BAD14B0405)资助;福建省自然科学基金计划项目(2017J01610)资助;福建农林大学科研启动经费项目(61201400817)资助;福建省科技平台建设项目(2010N2001)资助

摘　　要：以福建省建瓯市17个锥栗主栽农家品种为材料,研究其果实及叶片形态、果实营养成分含量、生长与产量等性状的变异。结果表明:锥栗农家品种的变异丰富,选择潜力较大;性状间具有一定的相关性,有利于开展表型性状的联合选择。各性状的变异系数为8.91%~64.29%,平均变异系数为27.32%,淀粉含量的变异系数最小,单株产量的变异系数最大。单株产量与单株结苞数相关系数最高为0.828。各个性状的重复力较高,平均为0.805。对17个锥栗农家品种的表型性状进行标准化排序,排名前3位的是乌榛、油榛和处暑红;按果实营养成分含量及产量等主要经济指标排序,处暑红、乌榛、大尖嘴表现优良。对表型性状进行聚类分析,17个农家品种分为4大类,第I类:处暑红;第II类:油榛;第III类:大苞榛、铁锥、大尖嘴、红仔榛;第IV类:黄榛、白露仔、小尖嘴、牛角仔(晚熟)、双峰子、牛角仔(中熟)、中尖嘴、油桐仔、乌榛、乌壳长芒、欧宁仔。研究结果为选育高产优质锥栗新品种奠定基础。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,between 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 ‘Hongzizhen＇; There were 11 cultivars in the fourth class： ‘Huangzhen＇,‘Bailuzi＇,‘Xiaojianzui＇,‘Niujiaozi（ late mature） ＇,‘Shuangfengzi＇,‘Niujiaozi（ middle mature） ＇,‘Zhongjianzui＇,‘Youtongzi＇,‘Wuzhen＇,‘Wukechangmang＇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 

分 类 号：S792.17[农业科学—林木遗传育种]