核桃杂交后代叶片与果实性状的相关性  

Correlation Between Leaf and Fruit Characteristics in Hybrid Progenies of Walnut

作　　者：赵爽[1] 刘洋[1] 李寒[1] 李保国[1,2] 齐国辉 张雪梅[1,2] ZHAO Shuang;LIU Yang;LI Han;LI Baoguo;QI Guohui;ZHANG Xuemei(College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000;Research Center for Walnut Engineering and Technology of Hebei, Lincheng, Hebei 054300)

机构地区：[1]河北农业大学林学院,河北保定071000 [2]河北省核桃工程技术研究中心,河北临城054300

出　　处：《北方园艺》2017年第24期39-43,共5页Northern Horticulture

基　　金："十二五"国家科技支撑计划资助项目(2013BAD14B03);河北省科技支撑资助项目(16236810D);河北省研究生创新资助项目

摘　　要：以5个核桃杂交组合的374个后代为试材,调查与测定了叶片和果实的10个性状,并分析了它们之间的相关性,以期为核桃育种和早期选种提供参考依据。结果表明:坚果横径、纵径和壳厚与单果质量在表型相关和遗传相关中均达显著水平;叶片各性状和单果质量的相关性不显著;通径分析的结果表明,坚果纵径、横径、壳厚和比叶重对单果质量的通径系数分别为0.160 4、0.626 3、0.290 8、-0.163 9,这4个因素对坚果单果质量的贡献达极显著效应,是影响核桃单果质量的主要因素。374 hybrids from 5 hybrid combinations were used as test materials,10 leaf and fruit traits were investigated and measured,and the correlation among them were analyzed to provide theoretical basis for walnut breeding and early selection.The results showed that the phenotypic correlation and genetic correlation between nut weight and nut transverse diameter,nut longitudinal diameter,nut shell thickness were all significant;the correlation between leaf traits and nut weight was not significant.The results of path analysis showed that the path coefficient of nut transverse diameter,nut longitudinal diameter,nut shell thickness and specific leaf weight to nut weight was 0.160 4,0.626 3,0.290 8 and-0.163 9 respectively.These four factors contributed significantly to the nut weight and were the main factors affecting the nut weight of walnut.

关 键 词：核桃 杂交后代 叶片 果实 性状 相关性 

分 类 号：S664.101[农业科学—果树学]