不同处理方法对荸荠种子发芽的影响

Effects of Different Treatments on Seeds Germination of Waternut

以当年采收的荸荠种子为材料,探讨运用不同的处理方法,如低温层积、摩擦去种皮、98%浓硫酸浸泡、热水浸泡、不同浓度GA3和6-BA浸泡、不同贮藏方式、不同发芽温度和光照条件以及不同品种等对荸荠种子发芽率、发芽势和发芽指数的影响。结果表明:荸荠种子4℃低温水藏48d后,98%浓硫酸浸泡10min+40℃水浸泡50min对提高荸荠种子发芽率效果最好;发芽温度以25℃最好,30℃下种子不发芽;贮藏方式以湿沙藏最好,其次是水藏;种子在部分光照条件下发芽较好,黑暗条件下发芽率较低,不同品种之间以沙洋荸荠发芽率、发芽势和发芽指数均最高。

We discussed the effects of different treatments on seed germination rate and germination vigor of waternut〔Eleocharis tuberosa(Roxb.)Roem.et.Schult.〕,including lamination at low temperature,peeling off episperm by friction,soaking seed in vitriol,in warm water,and in different concentrations of GA3 and 6-BA,by different ways of preservation,different temperatures and lights,using different cultivar seeds,etc.The result showed that the germination rate was the highest when lamination at 4 ℃ for 48 d,soaking...