| 青藏高原东缘31种常见杂草种子萌发特性及其与种子大小的关系 |
| |
| 引用本文： | 张蕾,张春辉,吕俊平,王晨阳,张莹莹,卜海燕,杜国祯.青藏高原东缘31种常见杂草种子萌发特性及其与种子大小的关系[J].生态学杂志,2011,30(10). |
| |
| 作者姓名： | 张蕾 张春辉 吕俊平 王晨阳 张莹莹 卜海燕 杜国祯 |
| |
| 作者单位： | 1. 兰州大学干旱与草地生态教育部重点实验室,兰州,730000
2. 兰州大学草地农业科技学院,兰州,730000 |
| |
| 基金项目： | 国家自然科学基金重点项目，高等学校博士学科点专项 |
| |
| 摘 要： | 以青藏高原东缘31种常见杂草(禾本科、菊科和紫草科)植物种子为对象,在野外实验条件下,观测了其萌发特性,并对其萌发模式以及种子大小和萌发特征的关系进行了分析,以期对当地的杂草防治提供理论依据.结果表明,这些植物种子的萌发模式可以分为以下4种类型:爆发型、过渡型、缓萌型和低萌型.其中过渡型和缓萌型所占比例最大(各占32.3%),爆发型次之(25.8%),低萌型最小(9.7%).高峰萌发率与种子大小呈显著负相关,萌发高峰时间与种子大小呈显著正相关,萌发率、萌发指数与种子大小呈较弱的负关联,萌发开始时间与种子大小呈较弱的正关联,萌发持续时间与种子大小几乎无相关关系.
|
| 关 键 词： | 萌发模式 种子大小 青藏高原东缘 常见杂草 萌发特征 杂草防治 |
Seed germination characteristics and their correlations with seed sizes of 31 common weeds in eastern Qinghai-Tibet Plateau. |
| |
| ZHANG Lei,ZHANG Chun-hui,L Jun-ping,WANG Chen-yang,ZHANG Ying-ying,BU Hai-yan,DU Guo-zhen.Seed germination characteristics and their correlations with seed sizes of 31 common weeds in eastern Qinghai-Tibet Plateau.[J].Chinese Journal of Ecology,2011,30(10). |
| |
| Authors: | ZHANG Lei ZHANG Chun-hui L Jun-ping WANG Chen-yang ZHANG Ying-ying BU Hai-yan DU Guo-zhen |
| |
| Institution: | ZHANG Lei,ZHANG Chun-hui,L(U) Jun-ping,WANG Chen-yang,ZHANG Ying-ying,BU Hai-yan,DU Guo-zhen |
| |
| Abstract: | A field observation was conducted to study the seed germination characteristics and their correlations with seed sizes of 31 common weeds in the families Gramineae,Compositae,and Boraginaceae in eastern Qinghai-Tibet Plateau,aimed to provide theoretical bases for local weed control.It was found that the seed germination had four patterns,i.e.,rapid,intermediate,slow,and low,with the proportions being 25.8%,32.3%,32.3%,and 9.7%,respectively.The peak germination percentage had a significant negative correlati... |
| |
| Keywords: | germination pattern seed size eastern Qinghai-Tibetan Plateau common weed germination characteristics weed control |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
