摘要
以燕山山脉野生欧李实生群体为试材,采用系统聚类和双变量相关的分析方法,研究同一生境条件下野生欧李营养生长性状和果实矿质营养吸收的多态性并进行聚类和相关分析。结果表明:野生欧李生物群体变异类型丰富,在叶果形状、大小、颜色、干鲜质量、含水百分率、果实成熟期以及叶果矿质元素含量等方面表现出差异较为明显的遗传形态和生理特征;聚类结果划分为2大类,一类为小叶小果型,另一类为大叶大果型,其中在叶果含水百分率、果实干鲜质量、果实横径大小以及叶果中Ca,K元素含量等指标上2类之间差异极显著;相关分析结果表明:除Fe元素外,果实中Ca,K,Mg,Zn,Mn等主要营养元素与叶果的营养生长性状相关指标表现出显著或极显著的相关关系,野生欧李叶片和果实的形状大小、干鲜质量、含水百分率等性状指标可以表征欧李果实中矿质营养吸收的代谢水平。
A Cerasus humilis population arisen from seeds was used to study hierarchical cluster and bivariant correlation analysis by measuring the polymorphism of vegetative growth traits and fruit mineral nutrient absorption.Our objective was to clarify the relationship between wild C.humilis population genetic variation and the mineral nutrient inheritance.The results indicated that wild C.humilis population had abundant genetic variation,especially in shape,size,colour,fresh and dry mass,water content,fruit mature period,and mineral nutrient elements contents of fruits and leaves,and showed significant difference in genetic characteristics and physiological characteristics.The clustering results were divided into two groups,one was small leaf and small fruit,the other was big leaf and big fruit.The two groups showed significant difference in water content of leaves and fruits,fresh and dry mass of fruits,fruit diameter,Ca and K contents of leaves and fruits.Correlation analysis indicated that there was a significant positive linear relationship between mineral nutrient elements of Ca,K,Mg,Zn,Mn except Fe in fruits and the vegetative growth traits indices of leaves and fruits.It was suggested that the vegetative growth traits indices of leaves and fruits of C.humilis,such as shape,size,fresh and dry mass and water content,could characterize the mineral nutrient absorption and metabolism of fruits.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2012年第12期58-63,共6页
Scientia Silvae Sinicae
基金
河北省自然科学基金项目(C2008000483)
关键词
欧李
营养性状
矿质营养
聚类分析
相关性
Cerasus humilis
vegetative traits
mineral nutrition
cluster analysis
correlation
