| 稀土镧对镉胁迫下玉米幼苗生长的影响 |
| |
| 引用本文： | 刘 冰,杨 丽,周 青.稀土镧对镉胁迫下玉米幼苗生长的影响[J].中国生态农业学报,2007,15(5):125-127. |
| |
| 作者姓名： | 刘 冰 杨 丽 周 青 |
| |
| 作者单位： | 江南大学工业生物技术教育部重点实验室,无锡,214036 |
| |
| 基金项目： | 国家自然科学基金;国家发展和改革委员会资助项目 |
| |
| 摘 要： | 以水培法研究了重金属Cd对玉米幼苗的胁迫伤害及稀土La对Cd伤害的缓解作用。结果表明,在Cd胁迫伤害下,玉米幼苗生长受到抑制,主要表现为株高、主根长下降,叶面积锐减,茎叶、根的鲜重以及干重明显下降,随着Cd胁迫浓度的增加,玉米幼苗受伤害程度趋向严重。在玉米幼苗上喷施适量浓度LaCl3(20mg/L),能缓解Cd对玉米幼苗生长造成的伤害。
|
| 关 键 词： | 玉米幼苗 Cd伤害 缓解效应 |
| 收稿时间： | 2005-10-26 |
| 修稿时间： | 2005-12-28 |
Effect of La on corn seedling growth under Cd stress |
| |
| LIU Bing,YANG Li and ZHOU Qing.Effect of La on corn seedling growth under Cd stress[J].Chinese Journal of Eco-Agriculture,2007,15(5):125-127. |
| |
| Authors: | LIU Bing YANG Li and ZHOU Qing |
| |
| Institution: | Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214036, China;Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214036, China;Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214036, China |
| |
| Abstract: | Hydroponic culture experiment was conducted to study the effect of La on corn seedling growth under Cd stress.The results show inhibition of corn seedling growth by Cd stress.The height,root length,leaf area,shoot and root fresh weight and dry weight decrease remarkably under Cd stress.With increased Cd2 concentration,damage to corn plant becomes serious.Application of 20mg/L La during the growing stage of corn seedling markedly alleviates Cd stress damage. |
| |
| Keywords: | La |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国生态农业学报》浏览原始摘要信息 |
| 点击此处可从《中国生态农业学报》下载免费的PDF全文 |
|
