论文部分内容阅读
通过研究不同浓度的NaCl、KNO3、PEG、H2O2和GA3溶液对青蒿种子发芽率的影响,从而选出最佳处理方法,为青蒿育苗提供技术依据。测定不同浓度药剂处理下青蒿种子的发芽势(Gv)、发芽率(Gr)、发芽指数(Gi)。(1)低浓度的NaCl和KNO3胁迫对青蒿种子发芽无明显抑制作用,而高浓度下对种子萌发不利。(2)用浓度为30%的PEG、0.15%的H2O2、10～30 mg/g的GA3处理可以显著促进青蒿种子的萌发,提高种子出苗率和整齐度,其中用20 mg/g GA3处理的种子比对照高出了13.77个百分点。而且高于其他处理组。相比于其他处理,用20 mg/g GA3浸泡处理能显著提高种子的发芽率、发芽势和发芽指标,为青蒿浸种的最佳方式。
The effects of different concentrations of NaCl, KNO3, PEG, H2O2 and GA3 on the germination rate of Artemisia annua L. were studied, and the best treatment method was selected to provide the technical basis for Artemisia annua seedlings. The germination potential (Gv), germination rate (Gr) and germination index (Gi) of Artemisia annua L. were measured under different concentrations of agents. (1) Low concentrations of NaCl and KNO3 stress had no obvious inhibitory effect on seed germination of Artemisia annua L. However, germination was unfavorable under high concentration. (2) Germination of Artemisia annua L. seeds with high concentration of 30% PEG, 0.15% H2O2 and 10 ~ 30 mg / g GA3 could significantly promote seed germination rate and uniformity of seeds, with 20 mg / g GA3 treatment The seed is 13.77 percentage points higher than the control. And higher than other treatment groups. Compared with other treatments, 20 mg / g GA3 soaking treatment can significantly improve the seed germination rate, germination potential and germination indicators, the best way for soaking Artemisia annua.