植物生长调节物质HKL-4对黄花乌头种子萌发及出苗影响研究

Effect of Plant Growth Regulator HKL-4 on Germination and Seedling Emergence of Aconitum coreanum Seeds

[目的]为提高黄花乌头种子发芽率和出苗率提供参考。[方法]以不同浓度的植物生长调节物质HKL-4对黄花乌头种子进行浸种处理,研究HKL-4浓度及浸种时间对黄花乌头种子发芽率和出苗率的影响。[结果]浸种时间对发芽率和发芽势的影响不显著,而HKL-4浓度对发芽率和发芽势的影响极显著,30×母液浸种4 h时种子发芽率和发芽势最高,分别为83.62%和65.34%,比对照处理(清水浸种)高32.39%和25.94%;用适当浓度的HKL-4处理可显著提高种子出苗率和种子存苗率,30×母液处理的出苗率最高,为59.56%,比对照高34.66%,存苗率为50.20%,比对照高58.86%。[结论]HKL-4对黄花乌头种子的最佳处理浓度为30×母液。

[ Objective] The study was to provide the reference for increasing the germination rate and seedling emergence rate of Aconitum coreanum seed. [Method] The A. coreanum seeds were soaked by plant growth regulator HKL-4 with different concn, and the effects of HKL-4 concn, and soaking time on germination rate and seedling emergence rate of A. coreanum seeds was studied. [ Result] The effects of soaking time on germination rate and germination energy was not significant, but the effect of HKL-4 concn, on germination rate and germination energy was extremely significant. When A. coreanum seeds were soaked with 30 × mother liquor of HKL4 for 4h, the germination rate and germination energy were highest, being 83.62% and 65.34% resp. , and were 32.39% and 25.94% higher than that of CK （ seed soaking with clear water）. The seedling emergence rate and seedling survival rate could be increased significantly when A. coreanum seeds were treated with suitable conch, of HKL-4, and the seedling emelgenee rate was highest （59.56%） when the seed were treated with 30 x mother liquor of HKL-4, being 34.65% higher than that of CK, and the seedling survival rate was 50.20%, being 58.86% higher than that of CK. [ Conclusion] The optimum treatment concn, of HKL-4 on A. coreanum seeds was 30 × mother liquor.