摘要
对苜蓿开花习性的研究结果表明，每个花序上的小花由下向上开放，从第一朵花开放到最后一朵花开完需４～７天；小花均在白天８时左右开始开放，１０～１４时达到开花高峰，立秋前、后分别于２０、１８时停止开放。苜蓿是一种自然杂交率很高的植物，在自然条件下主要靠昆虫传粉进行异花授粉繁殖后代。人工去雄宜在花蕾发育至第３时期进行，去雄后即速套袋隔离，过１～２天的８～１４时进行授粉可保证获得真正的杂交种。
Flowering behaviour and crossbreeding technique of alfalfa were studied.The
results showed that florets on each inflorescence bloom from bottem to top and it takes about
4～7days for all flOrets to blcom。Florets bloom only in daytime from some 8:00 a.m.to
18:00～20:00 p.m. and blcoming peak is between 10:00～14:00 p.m.. Un-der watural
conditions,alfalfa is a cross-pollinated plant with high crossing rate and is pollinated by
insects.In order to obtain actual hybrid strains,the stamen should be re-moved between the
growth stage and the third stage of flower bud.After the stamen was removed,the inflorescence
should be isolated with bage immediately and artificial pollination should be done at 8:00
a.m.～14 :0 p.m。in 1～2days。
出处
《中国草地》
CSCD
1996年第2期7-10,共4页
Grassland of China
关键词
苜蓿
开花习性
杂交
Alfalfa,Flowering behaviour,Crossbreeding
technique
