八棱海棠自然实生后代人工种群表型性状的变异研究  

Variation of Phenotypic Traits of Artificial Population Consisted by Natural Pollinated Seedling Progenies for Malus micromaalu

作　　者：王骞[1] 蔡华成[1] 弓桂花[1] 高敬东[1] 李春燕[1] 杨廷桢[1] 王淑婷[1] 

机构地区：[1]山西省农业科学院果树研究所,山西太谷030815

出　　处：《中国农学通报》2017年第4期66-73,共8页Chinese Agricultural Science Bulletin

基　　金：公益性行业(农业)科研专项"主要果树砧木收集;评价与筛选"(201203075-02);果树种质创制与利用山西省重点实验室

摘　　要：为研究表型性状在八棱海棠种子实生后代中的分离变异特征,探索种质早期预选择的时期和方法,以人工定植的200株八棱海棠自然实生植株群体为材料,调查不同样本植株的19个表型性状。变异系数和相关性分析表明,八棱海棠自然实生后代各表型性状均分离明显,果实性状的分离最大,其次为枝条性状,花性状分离最小。相关性分析表明,不同表型性状间存在一定的相关性,枝、叶、果实各表型性状间呈显著或极显著相关,其中果实纵径、横径、果重间呈极显著相关,相关系数分别为0.960、0.945和0.965,树高、干径与其他表型性状间相关性不显著。To study the separated variation of phenotypic traits on seedlings of Malus micromalus,and explore the earlier periods and methods of germplasms selection,19 different phenotypic traits were invested,which were from 200 seedlings of Malus micromalus.The results of variation and correlation showed that there was evident separation on phenotypic traits of natural seedlings of Malus micromalus,the separation on traits of fruit was the maximum,followed by the traits of branch,and the traits of flower was the minimum.The correlation analysis indicated that there were certain correlations between different phenotypic traits,the phenotypic traits of branches,leaves and fruits were significantly or extremely and significantly correlated,meanwhile there were extremely significant correlations among the fruit length,diameter and fruit weight,the correlation coefficient was 0.960,0.945 and 0.965,respectively,but the correlations of tree height and trunk diameter were not significant with other phenotypic traits.

关 键 词：八棱海棠 表型性状 相关性 种质 

分 类 号：S661.4[农业科学—果树学]