林业科学2011，Vol.47Issue(8)：82-87,6.
“绿岭”核桃种仁充实期叶片与果实矿质元素含量变化规律
Changes of Main Mineral Elements Content in Leaves and Fruits During the Kernel-Filling Period of "Lüling" Walnut
摘要
Abstract
In order to realize scientific fertilization and achieve successive high and stable yield, we investigated changes in main mineral elements (N, P, K, Ca, Mg, Fe, Zn, Mn) in leaves and fruits (kernel, shuck, shell) and weight in different organs of fruits during the kernel-filling period of "Loling" walnut, an early-fruiting variety. The results showed that; nut and kernel weight, as well as gross fat and total protein in the kernel increased by 5. 91 g( 51. 39% ) , 5. 53 g (73.47%), 4. 24 g(80. 99%), 1.02 g(69. 24%) respectively during the kernel-filling period. N, K, Fe and Mn contents in the leaves had a decreasing tendency, P, Mg, and Zn contents had an increase trend, and Ca content decreased at the early stage and then increased. In the kernel, N, P, K, Ca, Mg, Fe, Zn and Mn contents had a decreasing tendency, while their gross had an increasing tendency. In the shuck, P, Fe and Mn contents had a decreasing tendency, while K, Ca, Mg and Zn increased at the early stage and then decreased. In the shell, N, P and Zn contents showed decreasing tendency, K content increased at the early stage and then decreased, Ca and Mg content increased gradually, and Fe and Mn had no significant change. The gross of fat in the kernel was significantly and positively correlated with the gross of N, P, Fe, Mn, Zn in the kernel, and significantly and negatively with the contents of N, K, Mn in the leaves, the contents of N in the shuck, and the contents of P, Zn in the shell. There existed significant negative correlations between the gross of fat in the kernel and the contents of P, Fe, Mn in the shuck, and between the gross of fat in the kernel and the contents of N in the shell.关键词
“绿岭”核桃/种仁充实期/叶片/果实/矿质元素Key words
"Lliling" walnut/ kernel-filling period/ leaf/ fruit/ mineral elements分类
农业科技引用本文复制引用
胡志伟,李保国,齐国辉,郭素萍,张雪梅,董丽欣,李杰..“绿岭”核桃种仁充实期叶片与果实矿质元素含量变化规律[J].林业科学,2011,47(8):82-87,6.基金项目
河北省科技支撑项目(09230901D-1). （09230901D-1）
