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为了筛选出膜荚黄芪种子的最优且易于掌握的处理方法,试验采用沙培法进行了发芽试验,以膜荚黄芪种子为材料,设赤霉素浓度及浸种时间、研磨及研磨后浸种时间、清水浸种时间等处理方法,研究了黄芪种子发芽势、发芽率和发芽指数。结果表明:与未处理的对照比较,研磨和浸种均明显促进了种子萌发。在小组试验中,赤霉素浓度在5×10~(-5)g/mL且浸种18 h、清水浸种24 h、研磨后水浸种18 h分别表现最佳;赤霉素浸种和清水浸种黄芪种子的发芽势均显著低于研磨后浸种处理(P<0.05),但发芽率各处理间差异不显著(P>0.05);种子浸泡后再进行发芽试验,仍然可明显促进种子萌发。说明研磨和浸种均能明显促进黄芪种子萌发,但以研磨后清水浸种18 h的处理方法效果最佳;清水直接浸种24 h处理的发芽率不低,此方法最简单且最易于掌握;浸种后将种子晾干再行播种不影响其发芽率,同时干种子易于播种,可提高播种质量。
In order to screen out the best and easy-to-handle method of Astragalus membranaceus seed, the experiment was carried out by using sand culture method for germination test, using Astragalus membranaceus seed as material, concentration of gibberellin and soaking time, grinding and grinding soaking time , Soaking time and other treatments, studied the germination potential, germination rate and germination index of Astragalus membranaceus. The results showed that compared with the untreated control, both germination and soaking promoted the seed germination obviously. In the group experiment, the concentration of gibberellin was 5 × 10 ~ (-5) g / mL and soaking for 18 h, soaking in clear water for 24 h, The seed germination potential was significantly lower than that after grinding (P <0.05), but the germination rate was not significantly different among treatments (P> 0.05). After the seeds were soaked for germination, the seed germination could still be obviously promoted. The results showed that both germination and soaking could obviously promote the germination of Astragalus membranaceus, but the best treatment was 18 h after the soaking with fresh water; the germination rate was not low after the soaking with water for 24 h, which was the simplest and easiest to grasp; Drying the seeds and then sowing does not affect the germination rate, while dry seeds easy to sow, can improve the quality of planting.