[1]王伟,曹敏建,綦左莹,等.不同大豆品种对钾素吸收和利用效率差异的比较研究[J].大豆科学,2007,26(04):561-564.[doi:10.3969/j.issn.1000-9841.2007.04.021]
　WANG Wei,CAO Min-jian,QI Zuo-ying,et al.COMPARISON OF POTASSIUM ABSORB AND USE EFFICIENCY IN SOYBEAN [GLYCINE MAX(L)MERR] VARIETIES[J].Soybean Science,2007,26(04):561-564.[doi:10.3969/j.issn.1000-9841.2007.04.021]
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不同大豆品种对钾素吸收和利用效率差异的比较研究

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第26卷 期数: 2007年04期 页码: 561-564 栏目: 出版日期: 2007-08-25
Title:
COMPARISON OF POTASSIUM ABSORB AND USE EFFICIENCY IN SOYBEAN [GLYCINE MAX(L)MERR] VARIETIES
文章编号:
1000-9841(2007)04-0561-04
作者:
王伟; 曹敏建;  綦左莹; 何萍; 许海涛
沈阳农业大学农学院，沈阳 110161
Author(s):
WANG Wei; CAO Min-jian; QI Zuo-ying; HE Ping; XU Hai-tao
Agronomy College，Shenyang Agricultural University，Shenyang 110161
关键词:
大豆; 钾素; 吸收效率; 利用效率; 差异
Keywords:
Soybean; Potassium; Absorbing efficiency; Use efficiency; Difference
分类号:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.021
文献标志码:
A
摘要:
以钾高效大豆品种九农15和低效品种GD8521为试验材料，在溶液培养条件下研究不同钾浓度处理下植株干重及各部分钾含量、钾积累量的变化情况，从而分析其吸收及利用钾素效率的差异。结果表明：钾高效品种相对干重显著大于低效品种，高效品种植株各部分钾含量分布均匀，在低钾胁迫下根系和叶片中的钾含量均高于低效品种，表现出了对钾的高效吸收和利用特性；而低效品种吸收的钾却富集在茎秆中，说明钾在植株体内的运输受到阻碍。由此可见，钾在植物体内的利用情况如运输、同化是植物钾效率差异的关键。
Abstract:
Under culture condition，two soybean varieties with different potassium (K) efficiency were selected to evaluate potassium absorb and use efficiency at two K levels by comparing the plant dry weights，potassium contents and accumulation in plants.The results showed that the relative dry weight of efficient variety was much more than that of inefficient variety.Distribution of K accumulated by plant in high efficient variety was well proportioned，and K contents in root and leaf were higher than those of inefficient variety in low-K stress，which showed the characteristic of effective absorbing and using potassium for efficient variety.But potassium absorbed by inefficient variety enriched in stem，which showed that transportation of potassium in plant was blocked.So the transportation and assimilation was key for difference of potassium efficiency in plants.

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备注/Memo

作者简介：王伟（1979-），女，博士研究生，研究方向作物抗逆生理。E －mail：wangweikitty@163.com

通讯作者：曹敏建，教授，博士生导师。

更新日期/Last Update: 2014-10-20