摘要
为了找出腰果产量低的原因,对云南省勐拉乡的腰果开花授粉特性进行观察。结果表明：腰果为典型虫媒花植物;腰果的花期较长,90－149 d不等;两性花比雄花多,两性花开花高峰期比花药开裂高峰期提前1 h,给腰果的同株授粉带来了可能;自然授粉受到很大的限制,人工授粉能提高稔实率。这说明腰果的开花授粉习性与腰果产量有着必然联系,建议引进虫媒媒介,选出开花期集中适合推广的优良品种,通过改进栽培方式来提高腰果授粉质量,从而提高产量。
In order to improve output of cashew, blossoming and pollination habits of cashew were observed and researched in Mengla village of Yunnan. The results showed that cashew was a typical entomophilous plant ; it had a long flowering period from 90 days to 149 days ; the hermaphrodite flowers were more than the males, and the flowering peak of hermaphrodite flowers was 1 hours ahead of the peak of anthers dehiscence, which made cashew＇s geitonogamy possible; natural pollination had been limited and artificial pollination could enhance the fruit setting rate. That indicated that cashew output would be influenced inevitably by flowering and pollination habits. Some suggestion were put out, for example, to introduce pollination insects, to select improved breed with concentrated flowering period, and to improve planting mode for higher pollination quality.
出处
《经济林研究》
2008年第1期78-81,共4页
Non-wood Forest Research
基金
国家林业局科技推广项目"腰果培育技术示范"(204207)
关键词
经济林
腰果
开花
授粉
产量
nonwood forest
cashew
flowering
pollination
output
