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施锌对薄壳山核桃幼苗生长及体内锌分配的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年04期
Page:
75-78
Column:
研究论文
publishdate:
2012-07-31

Article Info:/Info

Title:
Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch
Author(s):
ZHU Haijun12 LIU Guangqin1 CAO Fuliang2* ZANG Xu3 ZHOU Beibei1 SHENG Jingya1
1.Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014,China; 2.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037,China; 3.Jiangsu Nongken Group Co., Ltd.,Nanjing 210008,China
Keywords:
Carya illinoensis(Wangenh.)K. Koch zinc application vegetative growth zinc distribution
Classification number :
S753.53
DOI:
10.3969/j.jssn.1000-2006.2012.04.015
Document Code:
A
Abstract:
Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch were investigated using the one year-old seedling of C. illinoensis as the research object. Results showed that the seedling growth was promoted by spraying ZnSO4 with a low concentration. In contrary, the seedling growth was inhibited by ZnSO4 with a high concentration. The similar trend was also observed under nut-presoaking treatment. Leaf chlorophy Ⅱ content presented a trend “declining-increasing-declining rapidly” with ZnSO4 rate increasingly. The ratio of zinc in pecan seedlings was significantly increased after leaf zinc spraying. It was found that the highest amount of zinc was detected in pecan leaves, whereas roots gathered the lowest. However, zinc content was the highest in shoot, the lowest in root when used nut-presoaking method. Summarily, 0.4% of foliar applied ZnSO4 is recommended in Zn fertilization of pecan.

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Last Update: 2012-07-07