几种药剂对椭圆叶花锚种子发芽力的影响

目的研究几种药剂对椭圆叶花锚种子的发芽力的影响。方法用不同浓度的青霉素、KCN、KNO3、PEG-6000、IAA、GA3、6-BA溶液对椭圆叶花锚浸种。结果青霉素的5、20、40mg／L，KCN的5、20mg／L，5％的PEG-6000，20mg／L GA3和6-BA的25、75mg／L可极显著提高椭圆叶花锚种子平均发芽率、平均发芽势，其中以6-BA以25mg／L处理效果最好，可使其种子发芽率、发芽势分别提高46．0％、39．67％；IAA溶液和KNO3对椭圆叶花锚种子的萌发无明显效果；而15％、25％的PEG-6000、80mg／L IAA、160mg／L GA3、100mg／L 6-BA则明显抑制种子萌发。用5mg／L青霉素、25mg／L 6-BA分别处理椭圆叶花锚种子后进行的室内土壤播种，对种子的萌发无明显影响。结论不同药剂及同一药剂的不同浓度对椭圆叶花锚种子发芽力的影响不同。

Influence of several medicaments on seed germination of Halenia elliptica

Object To test several medicaments influence on the seed germination of Halenia elliptica. Methods The seeds were soaked by different concentrations of Penicillin, KCN, KNO 3, PEG-6000, IAA, GA 3, and 6-BA solution. Results The seeds treated by Penicillin (5, 20, 40 mg/L), KCN (5, 20 mg/L), PEG-6000(5%), GA 3 (20 mg/L), and 6-BA (25, 75 mg/L) showed higher mean germination rate and mean germinating viability than the control. The optimal concentration was 25 mg/L for 6-BA, which increased the germination rate 46.0% and germinating viability 39.67% compared with the control. IAA and KNO 3 showed no significant effect on the seed germination. The seed germination was significantly inhibited by PEG-6000 (15%, 25%), IAA (80 mg/L), GA 3(160 mg/L), 6-BA (100 mg/L) solution, respectively. It could not improve the seed germination obviously while the seed was treated by Penicillin (5 mg/L), 6-BA (25 mg/L) before indoor sowing in the soil. Conclusion The influence is different by different medicaments and different concentrations of the same medicament for the seed germination ability of H. elliptica.