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 in vitriol for 10 min+40℃ water for 50 min, with germination temperature at 25 ℃. The seed did not germinate at 30 ℃. Preservation in sand was better than in water. Germination in intermittent light was better than in dark. The cultivar of ‘ Shayang’ waternut showed the best germination rate, germination vigor and germination index.%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48 d后,98%浓硫酸浸泡10 min+40℃水浸泡50 min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.
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