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| 外源钙对盐胁迫下玉米幼苗不同器官离子含量的影响 | |
| 引用本文： | 赵长江,薛盈文,杨克军.外源钙对盐胁迫下玉米幼苗不同器官离子含量的影响[J].玉米科学,2012,20(3):68-72. |
| 作者姓名： | 赵长江 薛盈文 杨克军 |
| 作者单位： | 1. 黑龙江八一农垦大学农学院,黑龙江大庆,163319 2. 黑龙江省农业科学院土壤肥料与环境资源研究所/黑龙江省土壤环境与植物营养重点实验室/黑龙江省肥料工程技术研究中心150086 3. 沈阳军区直属农副业基地管理局,哈尔滨,150086 |
| 基金项目： | 教育部高等学校博士学科点专项科研基金新教师类(20102305120002)、“十二五”农村领域国家科技计划课题(2011BAD16B00)、黑龙江省科技厅重点科技攻关项目(GZ11B107)、黑龙江省重点科技成果推广计划项目(TA09Q205) |
| 摘 要： | 以郑单958为试验材料,采用水培法研究盐胁迫下外源钙对玉米幼苗根、生长叶、成熟叶叶鞘和叶片生长的影响及K+、Na+、Mg2+、Ca2+含量,探讨盐胁迫下外源钙对玉米幼苗不同器官离子含量的影响。结果表明,外源钙可缓解盐胁迫对玉米幼苗生长的抑制作用,促进干物质积累及根冠比的增加。外源钙可明显降低根系对Na+的吸收量,减少Na+向地上部的运输量;增加对K+、Mg2+、Ca2+的吸收量和运输量;降低盐胁迫下玉米幼苗各器官Na+/Ca2+值、Na+/K+值,表明Ca2+可改善玉米幼苗体内的离子平衡,缓解盐胁迫造成的伤害。 |
| 关 键 词： | 玉米 外源钙 盐胁迫 离子含量 |
| 收稿时间： | 2012/3/16 0:00:00 |
Effects of Exogenous Calcium on the Lonic Contents in Different Organs of Maize Seedlings under Salt Stress |
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| ZHAO Chang-jiang,XUE Ying-wen,YANG Ke-jun,GAO Zhong-chao and ZHAO Rui-guang.Effects of Exogenous Calcium on the Lonic Contents in Different Organs of Maize Seedlings under Salt Stress[J].Journal of Maize Sciences,2012,20(3):68-72. | |
| Authors: | ZHAO Chang-jiang XUE Ying-wen YANG Ke-jun GAO Zhong-chao and ZHAO Rui-guang |
| Institution: | 1.College of Agriculture,Heilongjiang Bayi Agricultural University Daqing 163319; 2.Institute of Soil Fertilizer and Environment Resource,Heilongjiang Academy of Agricultural Sciences, The Key Laboratory of Soil Environment and Plant Nutrition of Heilongjiang Province, Heilongjiang Fertilizer Engineering Research Center,Harbin 150086; 3.Administration of Agriculture Sideline Production Site Directly under the Regional Military Command of Shenyang,Harbin 150086,China) |
| Abstract: | In order to explore the effect of exogenous calcium on the ionic contents in different organs of maize seedlings under salt stress, choosing Zhengdan958 as test materials, to explore the effect of the exogenous calcium on the content of K+, Na+, Mg2+, Ca2+ in the growth of root, young blade, mature sheath and mature blade under the salt stress. The results showed that the exogenous calcium could alleviative the growth inhibition of maize seedlings, dry weight and ratio of root-shoot were increased. It also could reduce the absorption volume of Na+ by the root obviously, reduce the traffic volume of Na+ to the part of the earth, increase the absorption and traffic volume of K+, Mg2+ and Ca2+, reduce Na+/Ca2+ ratio and Na+/K+ ratio of organs in maize seedlings under salt tolerance. The results indicated that exogenous calcium can improve the balance of ionic in maize seedling, alleviate the damage of salt stress. |
| Keywords: | Maize Exogenous calcium Salt stress Ionic content |
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