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| 硒、钴配施基肥对紫花苜蓿抗旱性的影响 | |
| 引用本文： | 郭孝,介晓磊,姚文超,胡华锋,李建平,李秋玲.硒、钴配施基肥对紫花苜蓿抗旱性的影响[J].中国草地学报,2009,31(4). |
| 作者姓名： | 郭孝 介晓磊 姚文超 胡华锋 李建平 李秋玲 |
| 作者单位： | 1. 河南农业大学资源与环境学院,河南,郑州,450002;郑州牧业工程高等专科学校,河南郑州,450011 2. 河南省新密市农业局,河南,452370 3. 郑州牧业工程高等专科学校,河南郑州,450011 |
| 基金项目： | 河南省杰出科研人才创新工程项目 |
| 摘 要： | 通过播前基施硒钻微肥,研究硒钴配施对紫花苜蓿叶片内游离脯氨酸、K含量、叶绿素含量以及氮代谢等生理功能的调节作用.结果表明:硒钻用量分别为765g/hm2和1548g/hm2不但能有效地促进苜蓿叶片内游离脯氨酸的积累和硝酸还原酶(NR)活性的提高,增强苜蓿体内氮代谢的水平,而凡能提高现蕾期到开花期苜蓿叶片中叶绿素含量.硒钴用量分别为570g/hm2和1548g/hm2能有效地提高苜蓿叶片中K的积累量. |
| 关 键 词： | 硒 钴 紫花苜楷 抗旱性 影响 |
Effects of Selenium and Cobalt Combined with Base Fertilizers on Drought Resistance of Alfalfa |
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| GUO Xiao,JIE Xiao-lei,YAO Wen-chao,HU Hua-feng,LI Jian-ping,LI Qiu-ling.Effects of Selenium and Cobalt Combined with Base Fertilizers on Drought Resistance of Alfalfa[J].Chinese Journal of Grassland,2009,31(4). | |
| Authors: | GUO Xiao JIE Xiao-lei YAO Wen-chao HU Hua-feng LI Jian-ping LI Qiu-ling |
| Abstract: | A field experiment was conducted to study effects of selenium and cobalt combined with base fertilizers on some physiological functions of alfalfa (Medicago sativa L.) , such as free proline and potas- sium accumulations, chlorophyll contents in alfalfa leaves and nitrogen metabolism. Results showed that applying 765g/hm2 selenium and 1548g/hm2 cobalt combined with base fertilizers could not only enforce ni- trate reductase activities and nitrogen metabolite levels, but also increase chlorophyll content in leaves from ramification to flowering stages effectively. Applying 570g/hm2 selenium and 1548g/hm2 cobalt com- bined with base fertilizers could increase potassium accumulations. |
| Keywords: | Selenium Cobalt Alfalfa Drought resistance Effect |
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