摘要
以辽西地区26个野杏无性系为试材,采用变异性分析、方差分析以及主成分分析等方法,研究了其25个数量性状的变异特点,以期为野杏无性系的遗传多样性研究和良种选育提供重要参考依据。结果表明:19个数量性状呈正态分布;25个野杏无性系数量性状变异系数均值23%,其中22个数量性状的变异系数在10%以上,小枝长度变异系数最大,达64%,单果质量、单核质量、单仁质量的变异系数分别为24%、21%和18%,表明野杏无性系数量性状变异程度丰富,选择潜力较大。野杏无性系果实性状重复力普遍偏高,核仁主要性状重复力次之,树体主要数量性状重复力较二者偏低,均达到极显著水平;果核仁性状的重复力除单果质量、单核质量和仁厚分别为0.634、0.756和0.624外,其它指标皆在0.909以上,其中仁长重复力最高,达0.973。主成分分析结果表明,前6个主成分累积贡献率达83.50%,能够反映野杏无性系数量性状的大部分信息;其中第1主成分主要反映野杏果核仁等经济性状。
Twenty-six Armeniaca vulgaris var.ansu clones of the west Liaoning were used as test materials.Variability analysis,variance analysis,and principal component analysis were used to study the variation characteristics and extent of 25 quantitative traits.The study aimed to provide important reference for the genetic diversity research and breeding of Armeniaca vulgaris var.ansu clones.The results showed that 19 quantitative characters were normal distribution;25 Armeniaca vulgaris var.ansu clones had 23% of the mean value of the variation coefficient of quantitative characters,of which 22 had more than 10% of the variation coefficient,and the variation coefficient of twig length was the largest,reaching 64%.The variation coefficients of single fruit mass,single stone mass and single kernel mass were 24%,21% and 18%,respectively,which indicated that Armeniaca vulgaris var.ansu clones had rich variation degree of quantitative characters and great selection potential.The repeatability of fruit characters of Armeniaca vulgaris var.ansu clones was generally high,followed by the repeatability of main characters of kernel and stone,and the repeatability of main quantitative characters of tree body was lower than the two,reaching a very significant level;the repeatability of fruit characters was above 0.909 except for single fruit mass,single stone mass and kernel thickness,which were 0.634,0.756 and 0.624,respectively,and the repeatability of kernel length was the highest,reaching 0.973.The results of principal component analysis showed that the cumulative contribution rate of the first six principal components was 83.50%,which could reflect most of the information of quantitative characters of Armeniaca vulgaris var.ansu clones,and the first principal component mainly reflected economic characters such as kernel and stone of Armeniaca vulgaris var.ansu clones.
作者
于庆福
董胜君
YU Qingfu;DONG Shengjun(Forestry Bureau of Kazuo County in Liaoning Province,Chaoyang,Liaoning 122300;College of Forestry,Shenyang Agricultural University,Shenyang,Liaoning 110161)
出处
《北方园艺》
CAS
北大核心
2021年第1期30-35,共6页
Northern Horticulture
基金
国家重点研发计划资助项目(SQ2019YFD100071)。
关键词
野杏
数量性状
变异系数
重复力
Armeniaca vulgaris var.ansu
quantitative character
coefficient of variation
repeatability
作者简介
第一作者:于庆福(1968-),男,本科,高级工程师,现主要从事经济林良种选育等研究工作。E-mail:yqf13842195583@163.com;责任作者:董胜君(1974-),男,博士,教授,现主要从事经济林良种选育及高效栽培等研究工作。E-mail:dsj928@163.com.
