文献类型：期刊文献

中文题名：西藏核桃叶片和坚果表型多样性及其相关关系研究

英文题名：The Phenotypic Polymorphism of Walnut Leaves and Nuts and Their Correlations in Tibet

作者：王金星[1,3] 潘刚[2] 王滑[1] 马和平[2] 赖家业[3] 裴东[1]

第一作者：王金星

机构：[1]林木遗传育种国家重点实验室,中国林业科学研究院林业研究所,北京100091;[2]西藏农牧学院,西藏林芝850400;[3]广西大学林学院,广西南宁530004

年份：2012

卷号：25

期号：2

起止页码：236-240

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：林业公益性行业科研专项“核桃集约及可持续生产关键技术研究”(201004048)

语种：中文

中文关键词：西藏核桃;叶片;果实;表型多样性;相关性

外文关键词：Tibet walnut; leaf; nut; phenotypic diversity; correlation

分类号：S664.1

摘要：我国西藏地区地处青藏高原的核心区域,区内山系纵横交错,海拔落差大,形成许多独特的区域小气候特征,为中国核桃（Juglans regia L.）的主产区之一。这里核桃遗传资源丰富,包含了实生农家类型以及天然居群等不同类型的群体,另外,
Based on pre-census survey,36 representative walnut seedlings were selected to analyze the top leaf＇s five morphological traits and nut＇s eight morphological traits.The results showed：（1） In Tibet,the traits of nuts and leaves of walnuts changed in a large range,the ratio of the maximum and minimum values of the traits could be as high as 3.06,showing the leaf traits and nut traits with certain diversity.（2） The variation coefficients of leaf area,suture line height,husk thickness and nut weight were about 20%,the genetic diversity and these traits had greater selectivity in breeding,the variation coefficients of the indexes of leaf shape,nut length,nut height and the indexes of nut shape did not reach 10%,these traits kept stable.（3） There was a significantly positive correlation between leaf area and nut weight and suture line height,the correlation coefficients were 0.505 and 0.440,which noted that the larger the leaf area,the greater the height and the larger the suture,there was a significant positive correlation between leaf width and nut weight,the correlation coefficient was 0.561.