施锌对薄壳山核桃幼苗生长及体内锌分配的影响

doi:10.3969/j.jssn.1000-2006.2012.04.015

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南京林业大学学报（自然科学版） ›› 2012, Vol. 36 ›› Issue (04): 75-78.doi: 10.3969/j.jssn.1000-2006.2012.04.015

施锌对薄壳山核桃幼苗生长及体内锌分配的影响

朱海军^1,2,刘广勤¹,曹福亮^2*,臧旭³,周蓓蓓¹,生静雅 ¹

1.江苏省农业科学院,园艺研究所,江苏南京 210014; 2.南京林业大学森林资源与环境学院,江苏南京 210037; 3.江苏省农垦集团有限公司,江苏南京 210008

出版日期:2012-07-07 发布日期:2012-07-07
基金资助:
收稿日期:2011-07-05 修回日期:2011-12-19 基金项目:2010 年中央财政林业科技推广项目(5911001) 第一作者:朱海军,助理研究员,博士生。*通信作者:曹福亮,教授。E-mail: samcao2007@yahoo.com.cn。引文格式:朱海军,刘广勤,曹福亮,等. 施锌对薄壳山核桃幼苗生长及体内锌分配的影响[J]. 南京林业大学学报:自然科学版,2012,36(4):75-78.

Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch

ZHU Haijun^1,2, LIU Guangqin¹, CAO Fuliang^2*, 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

Online:2012-07-07 Published:2012-07-07

摘要/Abstract

摘要： 以薄壳山核桃1年生实生苗为材料,研究了施锌对薄壳山核桃幼苗生长的影响及锌元素在植株各器官中的分配规律。结果表明:叶面喷施低质量分数ZnSO₄促进了薄壳山核桃幼苗的生长,ZnSO₄质量分数过高时幼苗的生长反而受到抑制; 用ZnSO₄浸种也表现出“低促高抑”的效应; 两种施锌方式下,随着ZnSO₄质量分数的升高,叶片叶绿素含量均呈现出“下降—增加—迅速下降”的趋势; 经叶面喷施后锌在薄壳山核桃各器官中的比例大幅增加,其中以叶片富集锌的量最多,茎次之,根系最少; 而ZnSO₄浸种后,以茎中锌积累的量最多,叶片次之,根系最少。综合试验结果认为,以0.4% ZnSO₄叶面喷施对促进薄壳山核桃幼苗营养生长及光合作用效果最佳。

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.

中图分类号:

S753.53

朱海军,刘广勤,曹福亮,等. 施锌对薄壳山核桃幼苗生长及体内锌分配的影响[J]. 南京林业大学学报（自然科学版）, 2012, 36(04): 75-78.

ZHU Haijun, LIU Guangqin, CAO Fuliang, ZANG Xu, ZHOU Beibei, SHENG Jingya. Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch[J].Journal of Nanjing Forestry University (Natural Science Edition), 2012, 36(04): 75-78.DOI: 10.3969/j.jssn.1000-2006.2012.04.015.

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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

Effects of zinc application on seedling growth and zinc distribution in different organs of Carya illinoensis(Wangenh.)K. Koch

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