| 当归不同发育期自毒作用研究 |
| |
| 引用本文： | 惠继瑞,李晶,赵庆芳,马瑞君.当归不同发育期自毒作用研究[J].安徽农业科学,2008,36(2):605-607,611. |
| |
| 作者姓名： | 惠继瑞 李晶 赵庆芳 马瑞君 |
| |
| 作者单位： | 西北师范大学生命科学学院,甘肃兰州,730070 |
| |
| 基金项目： | 甘肃省中青年科学基金项目(3YS061-A25-030)，西北师范大学大学生科研资助项目(2006) |
| |
| 摘 要： | 以甘肃省漳县当归为材料,模拟雨水淋溶途径,研究了当归不同发育期的化感作用。结果表明,当归具有自毒作用,且不同发育期自毒效应不同,其强弱程度为:营养期>幼苗期>繁殖期>成熟期;地上部自毒效应强于根部;各发育期自毒效应具有一定的浓度依赖性。因此认为,自毒作用是造成当归连作障碍的因素之一,雨水淋溶是自毒物质释放的一条重要途径。
|
| 关 键 词： | 当归 发育期 水浸液 自毒作用 连作障碍 |
| 文章编号： | 0517-6611（2008）02-00605-03 |
| 收稿时间： | 2007-09-22 |
| 修稿时间： | 2007年9月22日 |
Study on Autotoxicity of Angelica sinensis(Oilv.)Diels in Different Development Stages |
| |
| HUI Ji-rui et al.Study on Autotoxicity of Angelica sinensis(Oilv.)Diels in Different Development Stages[J].Journal of Anhui Agricultural Sciences,2008,36(2):605-607,611. |
| |
| Authors: | HUI Ji-rui |
| |
| Abstract: | The self-allelopathy of Angelica sinensis (Oliv.) Diels in different development stages from Zhangxian of Gansu province was studied by simulating the way of rain eluviation. The result showed that Angelica sinensis (Oliv.) Diels had autotoxicity, and autotoxic effects were not the same in different development stages. The autotoxic sensitivity was in order of nutrition stage>seedling stage>reproduction stage>maturation stage. The autotoxic effect from above-ground organs was stronger than root. In different development stages, autotoxic effect increased with concentration up. Therefore, autotoxicity was one of the factors leading to succession cropping obstacle, and rain eluviation was an important way of autotoxic chemicals releasing. |
| |
| Keywords: | Angelica sinensis (Oliv ) Diels Development stage Aqueous extract Autotoxicity Succession cropping obstacle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
