摘要
杂草是在人为和环境双重选择压力下演化而成的一类高度进化的植物类群,其繁殖方式多样,表现在种子产量、萌发、休眠、拟态、生命力、繁殖体传播方式等．作者以举例方式比较详细地论述了杂草多样的繁殖方式,并讨论其对人为干扰环境适应的意义．
Weed species, a group of plants with high evolutionary level under the natural and the human - disturbed double selective pressures, are characterized by their high diversity in production forms, which involve in seed output, germination, dormancy, mimesis, longevity, as well as the propagule dispersal. A lot of examples in relation to the diversity of reproduction in weed species and their significances of the adaptation to the human - disturbed environment are discussed in the present paper.
出处
《上海师范大学学报（自然科学版）》
2006年第3期103-110,共8页
Journal of Shanghai Normal University(Natural Sciences)
基金
上海市高校科学技术发展基金(No.04DB17)
关键词
杂草
繁殖
多样性
适应
weed
reproduction
diversity
adaptation
