赤霉素和层积处理对唐古特瑞香种子发芽的影响  

Effects of Gibberellin and Stratification Treatment on Seed Germination of Daphne tangutica

作　　者：赵洁[1] 晋小军[1] 左贵平[1] 柳文军 张红军 

机构地区：[1]甘肃农业大学农学院,兰州730070 [2]甘肃省东乡县农牧局,甘肃东乡731400 [3]甘肃泰康制药有限责任公司,甘肃武威730020

出　　处：《西北农业学报》2013年第5期136-139,共4页Acta Agriculturae Boreali-occidentalis Sinica

摘　　要：研究不同层积时间和赤霉素质量浓度对唐古特瑞香种子萌发的影响。结果表明,唐古特瑞香种子层积120d后,用300mg.L-1赤霉素浸种,效果最佳,发芽率与发芽势分别为27.3%和14.0%,极显著高于其他处理;层积90d用300mg.L-1赤霉素与层积120d用500mg.L-1赤霉素处理,种子发芽率分别为20.3%和19.3%,发芽势分别为12.7%和12.0%。可见:不同层积时间与不同质量浓度赤霉素配合处理,可提高唐古特瑞香种子发芽率和发芽势。Effects of different stratification time and gibberellin concentrations on seed germination of Daphne tangutica were studied by 24 h seed-soaking treatments. The most obvious effect was observed on the seeds with stratification time for 120 days and soaked with 300 mg·L-l gibberellin for 24 h, the germination rate was 27.3% and germination potential was 14.0%, which was significantly higher than that of other treatments. Germination rate and germination potential for the seeds treated with stratification time for 90 days, soaked with 300 mg·L-l gibberellin was 20.3% and 12.7%, and it was 19.3% and 12.0% for the treatment of 120 days stratification time and 500 mg·L-1 gibberellin. The combination treatment of different stratification time and different mass concentrations of gibberellin can effectively improve the germination rate and germination potential of Daphne tangutica seeds.

关 键 词：唐古特瑞香 层积 赤霉素 发芽率 

分 类 号：S567.239[农业科学—中草药栽培]