H2O2对蕹菜种子活力影响的研究
Effect of H2O2 on Water Convolulus Seed Viability
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摘要: 就H2O2对蕹菜(Ipomoea aquatica)种子活力影响进行了研究。结果表明,H2O2能促进发芽,提高种子活力,在处理浓度、温度和时间为1%H2O2+30℃-8h的最佳组合下,可提高发芽率和成苗率,分别为21.0%和25.0%左右。不同品种和年份的蕹菜种子活力差异较大,用H2O2处理后,一般是发芽率较低的品种或当年新收种子效果更为明显。H2O2与其它种子活力促进剂对比试验证实,H2O2略优于赤霉素,极显着优于其它试剂。还对H2O2提高种子活力的机理进行了初步的探讨。Abstract: The effect of H2O2 on water convolulus(Ipomea aquatica)seed viability has been studied at length in this paper.The experiment results showed that H2O2 could stimulate seed germiination and improve seed viability, the relative germination rate and seedling rate increased by about 21.0%and 25.0%respectively when the concentrations, treatment hours and temperatures were 1% H2O2-30℃-8h(the best set).Seed viability was rather difference among different water convolulus varieties.With 1%H2O2 treatment,the effects on lower germination rate varieties and new harvested seed were more apparent.Compared with other seed vlability promoters,the effect of H2O2 was slightly better than the gibbereline(920)and markedly better than other The mechanism of H2O2 treatment improving seed viability was parimarily discussed also.
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Key words:
- H2O2 /
- Water convolulus /
- Seedviability
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[3] 周爱清,罗顺.1990.种子活力.105-126.农业出版社,北京
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