广西植物2012，Vol.32Issue(4)：527-530,4.DOI:10.3969/j.issn.1000-3142.2012.04.019
光照和温度对飞机草种子萌发的影响
Effects of light and temperature on seed germination of Eupatorium odoratum
摘要
Abstract
The effects of different light and changing temperature conditions on seed germination of Eupatorium odoratum were studied by simulating environmental conditions in climatic chambers. The results was as followed:the seed of E. odoratum could germinate from 15℃/10℃ to 40℃/35℃ under light, and the optimum changing temperature was 30℃/25℃. Under this changing temperature,the germination rate was 47. 5% ;at 15℃/10℃ ,the seed of E. odoratum couldn't germinate under dakness;from 20℃/15℃ to 35℃/30℃ temperature conditions,the higher temperature,the seed germination peak appeared earlier;from 15℃/10℃ to 30℃/25℃ temperature conditions,the seed germination rate of E. odoratum increased with increasing temperature,and higher than 30℃/25℃ ,the germination rate reduced. Appropriate light was more conducive to seed germination of E. odoratum. E. odoratum became invasive species and proliferated speedily could be closely related with seed germination adaptability to light and temperature.关键词
飞机草/种子萌发/光照/温度Key words
Eupatorium odoratum/ seed germination/ light/ temperature分类
农业科技引用本文复制引用
韦春强,刘明超,唐赛春,潘玉梅,蒲高忠..光照和温度对飞机草种子萌发的影响[J].广西植物,2012,32(4):527-530,4.基金项目
广西科技攻关项目(0719005,0992026-5) （0719005,0992026-5）
国家科技支撑计划项目(2006BAC01A10) （2006BAC01A10）
广西自然科学基金(2011GXNSFE018005) （2011GXNSFE018005）
