摘要
[目的]探讨植物激素对坚龙胆种子萌发的影响。[方法]以坚龙胆成熟种子为试验材料,采用正交试验设计研究赤霉素(GA3)、6-苄基腺嘌吟(6-BA)、吲哚乙酸(IAA)及浸种时间对坚龙胆种子发芽情况的影响。[结果]坚龙胆种子发芽过程中以200 mg/L GA3+5mg/L 6-BA+5 mg/L IAA配比并浸种48 h处理的效果最好,种子发芽率达93%以上,种子开始发芽时间和发芽持续时间短,发芽势和发芽指数最高。[结论]经过正交试验设计优选出影响坚龙胆种子发芽率的作用大小为IAA>GA3>浸种时间>6-BA;经过植物激素处理可以提高坚龙胆种子的发芽率。
[Objective] To explore the effects of plant hormone on seed germination of Gentiana rigescens Franch.[Method] With the matured seeds of G.rigescens as test materials,effects of GA3,6-BA and IAA on the soaking time and germination status of G.rigescens were studied.[Result] Seeds soaked in 200 mg/L GA3＋5 mg/L 6-BA＋5 mg/L IAA showed the best germination effects and the germination rate reached more than 93%,the germination starting time and germination lasting time were relatively short,germination rate and germination energy were the highest.[Conclusion] Based on orthogonal test,effects of plant hormone on seed germination of G.rigescens was in the order of IAAGA3soaking time﹥6-BA.Plant hormone treatment could enhance the germination rate of G.rigescens seeds.
出处
《安徽农业科学》
CAS
2012年第12期7100-7100,7206,共2页
Journal of Anhui Agricultural Sciences
基金
大理学院中青年学术带头人培养项目
大理学院大学生科研基金资助项目(No:DSSKY 200904)
