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中国农学通报 ›› 2010, Vol. 26 ›› Issue (2): 122-126.

• 农学 农业基础科学 • 上一篇    下一篇

增强UV-B辐射对甘草种子萌发及幼苗形态的影响

方媛 于海宁 程 曦 路 洁 彭 励   

  • 收稿日期:2009-09-02 修回日期:2009-10-23 出版日期:2010-01-20 发布日期:2010-01-20
  • 基金资助:

    国家自然科学基金

Effect of enhanced UV-B radiation on seed germination and seedling morphology of Glycyrrhizic

  • Received:2009-09-02 Revised:2009-10-23 Online:2010-01-20 Published:2010-01-20

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摘要：

研究了增强UV-B辐射对乌拉尔甘草、光果甘草种子萌发的影响及种子萌发第（1d,3d,5d,7d）时过氧化氢酶（CAT）活性的变化。结果表明：增强UV-B辐射对两种甘草种子的发芽率、发芽势及发芽指数的影响不显著，但能极显著抑制两种甘草种子萌发期间胚根和下胚轴伸长，降低两种甘草胚根鲜重、干重，下胚轴鲜重、干重。增强UV-B辐射处理初期，两个品种甘草CAT酶活性均显著高于对照，随着处理天数的增加，CAT酶活性开始下降。

关键词: 老字号, 老字号, 困境, 营销策略, 食品企业

Abstract:

Abstract: Effect of enhanced UV-B radiation on Glycyrrhiza uralensis, Glycyrrhiza glabra seed germination and the variety of catalase (CAT) activity when the seed germinated at 1d, 3d, 5d, 7d respectively. The results showed that the effect of enhanced UV-B radiation on the seed germination energy, germination percentage and germination index of the two types Glycyrrhizic seed was not significant,but significantly , it can inhibit the radicle and hypocotyl elongation and decrease radicle fresh weight, dry weight, hypocotyl fresh weight, dry weight of the two types Glycyrrhizic seed during germination. At early period of treatment, CAT activity of the two types Glycyrrhizic were significantly higher than control, but with the treatment time increased, CAT activity decreased.