短梗五加种子催芽试验研究

Study on Seed Germination Experiment of Acanthopanax sessiliflorus.Seem.

[目的]对短梗五加进行种子催芽试验,解决短梗五加种子繁育困难、当年出苗不齐等问题,提高翌春播种出苗率。[方法]采取变温层积加赤霉素浸种处理,人工控制变温层积,以4种不同浓度的赤霉素浸种。[结果]以100mg/L的赤霉素处理的胚率最佳,发芽率达91.4%,100mg/L的赤霉素可加速可溶性糖和可溶性蛋白的转化,降低种子淀粉的含量。[结论]种胚必须经过形态后熟和生理后熟2个不同阶段,种子内的抑制物质通过人为处理来打破,可以实现当年采种,次年春天播种育苗的生产需要。

[Objective] The aim was to study the seed sprouting of Acanthopanax sentieosus and improve the emergence rate in next year. This could solve the difficulties in breeding and irregular emergence of seedling. [Method] The temperature-accelerated stratification and seed soaking with 4 different concentrations Gibberellin were taken in the experiment. [Result]The best embryo rate with 100 mg/mL Gibberellin was the best （91.4%）. And the 100 mg/mL Gibberellin could accelerate the transformation of soluble sugar, protein and decrease the content of starch. [Conclusion] The embryo must undergo two different stages of morphological after-ripening and physiological after-ripening and break the inhibition substance.With these measures, be reached. seed collecting and seedling in next spring colud be reached.