藏药波棱瓜种子萌发特性研究

Study on Seed Germination Character of Tibet Herpetospermum pedunculosum(ser.)C.B.Clarke.

通过种子活力的测定、发芽床及发芽温度的筛选和不同药剂浸种处理,研究了波棱瓜种子的萌发特性。结果表明:波棱瓜种子萌发具有一定程度的休眠特性,其最佳发芽基质为砂质发芽床;发芽最适温度为20℃;青霉素和聚乙二醇对波棱瓜种子发芽具有促进作用。用50℃的温水浸种后,采用300 mg/L的青霉素溶液处理,发芽势和发芽率分别比对照提高12%和20%,达到53.33%,极显著高于对照33.33%;用100 g/L的聚乙二醇溶液处理,波棱瓜种子的发芽势和发芽力分别比对照提高10%和14%。

To study the optimal seed germinating conditions,so as to provide basis for cultivated of Herpetospermum pedunculosum（ser.）C.B.Clarke,germination bed,temperature and seed soaking,the effects of different treatments on percentage germination and germination energies were investigated.The results showed that the germination of the seed possessed dormancy character,its best germination bed was Sandy;and its optimum temperature was 20℃.After soaking in warm water at 50℃ and 300 mg/L penicillin solution,the seed germination potency and percentage were as much as 12% and 20% higher than the control respectively,reach to 53.33%,and their difference was very significant;100 g/L polyethylene glycol solution could also enhanced both of them,10% and 14% more than the control.