梨资源叶片和果实中矿质元素含量差异及其相关性  

Mineral Nutrition Content Difference and Correlation between Leaves and Fruit of Pear Germplasm Resources

作　　者：段莹莹[1] 乔鑫[1] 李六林[1] 田彩芳[1] 宋宇琴[1] 

机构地区：[1]山西农业大学园艺学院,山西太谷030801

出　　处：《山西农业科学》2013年第9期930-933,937,共5页Journal of Shanxi Agricultural Sciences

基　　金：国家现代农业(梨)产业技术体系项目(CARS-29-05);山西省科技攻关项目(20130311021-2)

摘　　要：取30个梨品种(系)的叶片和果实,分析不同梨品种及其种间叶片和果实矿质元素含量及叶片与果实矿质元素间的相关性。结果表明,梨不同品种间叶片及果实中Ca,K,Mg,Mn,Fe和Zn的含量存在明显差异;杂交种梨叶片中K含量显著高于西洋梨;叶片中Ca与Mn,K与Mg呈显著正相关,Ca与Zn呈极显著正相关,K与Fe呈极显著负相关;果实中K与Ca,K与Mn呈显著正相关,Mg与Ca,K,Mn间呈极显著正相关;叶片中Zn与果实中Ca呈显著正相关;叶片中Ca与果实中Fe,叶片中Zn与果实中Fe呈极显著正相关。30个梨品种(系)叶片和果实中矿质元素含量差异显著,选出了矿质元素含量高的品种,探明了叶片与果实中矿质元素的关系,为杂交亲本选配和杂交苗的早期筛选提供了理论依据。The object of this study is to study pear resources with high nutrient elements and corrdalion of nulrition between leaves and fruits to provide theoretical basis for crossing parent selection and early screening of hybridization. Taking leaves and fruits from thirty pear cuhivars to analyse mineral nutrition content in leaves, fruits and the correlation of mineral elements between leaves and fruits. The results showed that there are significant differences of Ca, K, Mg, Mn, Fe and Zn content in different leaves and fruits. The K content of P. Hybrid leaves was higher than that of P. Communis. In leaves, there was a positive correlation between the content of Ca and Mn, so it was with the content of K and Mg. At the mean time, there was an extremely correlation between the content of Ca and Zn, a significantly negative correlation between the content of K and Fe. Meanwhile, it existed a positive correlation in fruit between the content of K and Ca, K and Mn, and a significantly correlation between the content of Mg and Ca, K and Mn. There was a positive correlation between Zn in leaves and Ca in fruit, a significantly correlation between Ca in leaves and Fe in fruit, so it was with the correlation between Zn in leaves and Fe in fruit.This study showed that the mineral elements content in leaves and fruits of 30 pear cultivars had significant difference. It helps us select cultiva~ with high mineral dements content and proves the relationship between leaves and fruit, which provides basis for early screening of hybrid seedlings.

关 键 词：梨 叶片 果实 矿质元素 

分 类 号：S661.2[农业科学—果树学]