温水及生长调节剂处理对杜仲种子发芽率的影响

为了打破杜仲种子休眠,提高其发芽率,研究了温水浸种、植物生长调节剂浓度配比以及不同浸泡时间对杜仲种子催芽的影响。结果显示:50℃温水浸种和6-BA 100mg!L-1浸种均能显著提高杜仲种子的发芽率,其中6-BA100mg!L-1的催芽效果最好,发芽率达88%,比对照组高28%,发芽势为80%,比对照组高34%;其次,50℃、100mg!L-1IBA和150mg!L-1 GA3发芽率均达80%。

Effects of Warm Water and Growth Regulator on Seed Germination of Eucommia ulmoides

In order to break seed dormancy of Eucommiaulmoides and improve their germination rate,the effects of warm water soaking,concentration ratio of plant growth regulators &the different soaking time on seed germination of Eucommiaulmoides were studied.Result shows that:50 ℃ warm water soaking and 6-BA 100 mg L-1 could significantly increase the germination rate of Eucommiaulmoides,among of which 6-BA100 mg L-1 is the optimal germination,the germination rate being 88%,28% higher than that of the control group;germination potential is 80%,which is 34% higher than that of the control group;secondly,50 ℃,100 mg L-1 IBA & 150 mg L-1 GA3 ger-mination rate all reach 80%.