提高团花种子萌发率的方法  

Methods of Seed Germination Enhancement of Anthocephalus chinensis

作　　者：周双云[1] 张丽霞[1] 张远辉[1] 

机构地区：[1]中科院西双版纳热带植物园,云南勐腊666303

出　　处：《林业科技》2004年第2期6-7,共2页Forestry Science & Technology

基　　金：热带植物种质资源引种保存及资源植物研究 (万种植物园 )重大项目 (WK2 0 0 0 -7)资助

摘　　要：温水浸种可以提高团花种子种皮的透水性 ,促进种子萌发 ,提高发芽率 ,其中以 5 0℃、 6 0℃的温水处理效果最好 ,温水处理时间长短无显著差异 ,采用不同浓度的GA3 处理团花种子可以打破种子休眠 ,促使种子萌发 ,且以 10 0～ 2 0 0 μl/l的浓度处理效果较好。This paper described two different methods to acquire preferable germination percentages respectively for the dormant stored seeds and greshly collected seeds of Anthocephalus chinensis.The results showed that the germination capacity of stored seeds after 330 days can be enhanced by a pretreatment of immersed in warm water.Seeds treated by 50*!℃ and 60*!℃ water immersion obtained germination of 64.66% and 62% while the control was only 38%.There were no significant differences between 24h and 48h treatments in the study.Freshly collected seeds are dormant with only 6% germination.However,adoption of certain concentration GA 3 pretreatment is effective to break their dormancy and promote germination ability.Our research shows that 100～200*!μl/l*!GA 3 solution is suitable for promoting fresh seed germination.

关 键 词：团花 种子 萌发 茜草科 

分 类 号：S792[农业科学—林木遗传育种]