Zn在不同品种小麦植株地上部的积累和分配研究

doi:10.7668/hbnxb.2010.05.038

华北农学报 ›› 2010, Vol. 25 ›› Issue (5): 187-192. doi: 10.7668/hbnxb.2010.05.038

所属专题： 小麦；

Zn在不同品种小麦植株地上部的积累和分配研究

姜丽娜¹, 张黛静², 蒿宝珍², 祁诗月¹, 邵云¹, 李春喜¹

1. 河南师范大学, 生命科学学院, 河南, 新乡, 453007;
2. 河南师范大学, 生命科学学院, 河南, 新乡, 453007;中国农业大学, 农学与生物技术学院, 北京, 100094

收稿日期:2010-08-15 出版日期:2010-10-28
作者简介:姜丽娜(1973-),女,河南延津人,副教授,博士,主要从事作物(小麦)生理生态研究工作.
基金资助:
河南省自然科学基金项目(082300430120);河南省高校青年骨干教师资助计划;河南师范大学大学生创新性实验计划项目(091047635)

Study on Zn Accumulation and Distribution in Aboveground Plant of Different Wheat Varieties

JIANG Lina¹, ZHANG Daijing², HAO Baozhen², QI Shiyue¹, SHAO Yun¹, LI Chunxi¹

1. College of Life Sciences, Henan Normal University, Xinxiang 453007, China;

2. College of Agriculture and Biotechnology, China Agricultural University, Beijing 100094, China

Received:2010-08-15 Published:2010-10-28

摘要/Abstract

摘要： Zn是植物正常生长发育所必需的微量元素之一,与小麦籽粒品质和人类饮食健康密切相关.鉴此,以长584、济麦20和中普绿麦1号3个小麦品种为试验材料,分析了常规大田种植条件下小麦植株地上部Zn的积累、分配规律.结果表明:小麦植株地上部各器官Zn含量均在器官形成初期表现最高,随生育期的推进,器官Zn含量呈下降趋势,植株地上部Zn积累量呈上升趋势,其中三叶+起身期增长缓慢,起身+灌浆初期增长迅速,灌浆初+灌浆末期增长趋于缓慢,平均日积累量峰值出现在拔节+抽穗期.灌浆末期,植株地上部单茎Zn积累量平均为142 μg,籽粒中Zn的含量及分配比例均最高,茎秆对籽粒Zn贡献率最大.供试的3个品种中,长584植株在后期吸收Zn的能力较强,其植株Zn积累量、籽粒Zn积累量均最高;济麦20籽粒Zn的收获指数最高.

关键词: Zn, 小麦, 含量, 积累, 分配

Abstract: Zinc(Zn) is one of the essential microelements for the plant growing development. And it is closely related to wheat grain quality and dietary health. With Chang 5864,Jimai 20 and Zhongpulvmai No. 1 as field materials under common ways of cultivation and management,the accumulation and distribution of Zn in aboveground plant were discussed in this paper. The main results were as follows: During the growing initial period,organs over-ground plant had higher Zn concentration. Along with the development of wheat,Zn concentration in organs tended to decrease, while Zn accumulation in aboveground plants tended to ascend,and the increasing trend could be described as slow from three leaves stage to upstanding stage,rapid from upstanding stage to early filling stage,and mild afterwards. The maximum accumulation velocity of Zn appeared from jointing stage to heading stage. At terminal filling stage,Zn accumulation in aboveground plant was 141. 772 μg per stalk on average. And among all the aboveground parts,the highest Zn concentration and distribution rate was found in grains. As far as Zn contribution rate to grain,stem was the highest. Among these three varieties,Chang 5864 had the highest Zn accumulation in aboveground plant and grains because of its stronger Zn absorption capacity during the later growth stage. The highest Zn harvest index in grains was found in Jimai 20,which was 0. 677

Key words: Zinc( Zn), Wheat, Concentration, Accumulation, Distribution

中图分类号:

S512.1+1

姜丽娜, 张黛静, 蒿宝珍, 祁诗月, 邵云, 李春喜. Zn在不同品种小麦植株地上部的积累和分配研究[J]. 华北农学报, 2010, 25(5): 187-192. doi: 10.7668/hbnxb.2010.05.038.

JIANG Lina, ZHANG Daijing, HAO Baozhen, QI Shiyue, SHAO Yun, LI Chunxi. Study on Zn Accumulation and Distribution in Aboveground Plant of Different Wheat Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(5): 187-192. doi: 10.7668/hbnxb.2010.05.038.

http://www.hbnxb.net/CN/Y2010/V25/I5/187

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