文献类型：期刊文献

中文题名：薄壳山核桃无性系种实性状综合评价

英文题名：Comprehensive evaluation of seed and fruit traits of thin shell of pecan clones

作者：杨兵兵[1,2] 姚小华[1] 张成才[1] 邵慰忠[3] 杨雨晨[1] 刘林秀[1]

第一作者：杨兵兵

机构：[1]中国林业科学研究院亚热带林业研究所,浙江杭州311400;[2]南京林业大学,江苏南京210037;[3]建德市林业技术推广中心,浙江建德311600

年份：2023

卷号：45

期号：5

起止页码：57-66

中文期刊名：北京林业大学学报

外文期刊名：Journal of Beijing Forestry University

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：江西省林业局林业科技创新专项“薄壳山核桃无性系引种试验与筛选”(创新专项(2020)04);华东区薄壳山核桃优质轻简高效栽培技术集成与示范(2020YFD100070303)。

语种：中文

中文关键词：薄壳山核桃;营养性状;经济性状;相关性;主成分分析

外文关键词：Carya illinoensis;nutritional property;economic trait;correlation;principal component analysis

分类号：S664.1

摘要：【目的】探究薄壳山核桃成分组成、含量差异及各品质性状之间相关性,为优良种质资源的挖掘和优良新无性系的选育提供参考。【方法】对50个无性系的种仁含油率、脂肪酸、酚类物质含量、核果质量、核果高、核果径、仁质量等性状进行测定,分析各性状之间相关性,并基于主成分分析模型进行综合评价。【结果】(1)含油率均处于70.09%~79.99%之间,其中JD25、JD13、JD6、JH3、JD23、XS3、JD27和JD28含油率均值较大。(2)油脂中共检测出8种脂肪酸,且脂肪酸各成分的相对含量存在差异,其中JH1、JD21、XS3、JD27和XS7不饱和脂肪酸含量高于其他无性系。(3)各个性状之间存在显著差异,其中不饱和脂肪酸变异系数为0.38%,最为稳定;总黄酮与缩合单宁变异系数为51.22%和49.88%,属高度变异。(4)采用主成分分析模型对50个无性系进行综合评价,其中XS12、XS1、JD23、XS3、JH1、XS8、JD30和JD29排名靠前。【结论】综合含油率和主成分分析模型排名考虑,分别选择各自排名前3和两者共有的无性系,即JD23、XS3、XS12、XS1、JD25、JD13和JD6作为优良种质资源和优良无性系进行培育与选育。
[Objective]This paper aims to explore the composition,content difference and correlation of the components of pecans,and to provide a reference for the mining of superior germplasm resources and the breeding of superior new clones.[Method]The oil content,fatty acid,phenolic substance content,drupe mass,drupe height,drupe diameter,and kernel mass of 50 clones were measured to analyze the correlation among the traits,and comprehensive evaluation was made based on the principal component analysis model.[Result](1)The oil content ranged from 70.09%to 79.99%,among which the mean oil contents of JD25,JD13,JD6,JH3,JD23,XS3,JD27 and JD28 were higher.(2)A total of 8 kinds of fatty acids were detected,and the relative contents of fatty acids were different,among which the contents of JH1,JD21,XS3,JD27 and XS7 unsaturated fatty acids were higher than those of other varieties.(3)There were significant differences among traits,and the variation coefficient of unsaturated fatty acids was 0.38%,which was the most stable one.The coefficients of variation of total flavonoids and condensed tannin were 51.22%and 49.88%,respectively,which were high variables.(4)Principal component analysis was used to comprehensively evaluate the 50 clones,among which,XS12,XS1,JD23,XS3,JH1,XS8,JD30 and JD29 ranked the top.[Conclusion]Considering the comprehensive oil content and principal component analysis model ranking,the top 3 clones of each and the clones shared by both,i.e.JD23,XS3,XS12,XS1,JD25,JD13 and JD6 are selected as excellent germplasm resources and excellent clones for cultivation and breeding.