欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (13): 183-186.

所属专题： 园艺

• 农学 农业基础科学 • 上一篇    下一篇

聚乙二醇对萝卜种子活力与幼苗抗冷性的影响

李晓梅   

  • 收稿日期:2010-02-04 修回日期:2010-03-15 出版日期:2010-07-05 发布日期:2010-07-05

Effect of Polyethylene glycol on Seed Vigor and chilling Resistance of radish Seedlings

  • Received:2010-02-04 Revised:2010-03-15 Online:2010-07-05 Published:2010-07-05

PDF (PC)

1016

摘要：

采用聚乙二醇（PEG-6000）浸种,研究其对萝卜种子活力和抗冷效应的影响。结果发现20%PEG明显促进萝卜种子发芽势、活力指数、发芽指数的提高。低温下，20%PEG处理明显提高幼苗叶片超氧化物歧化酶(SOD) 、过氧化物酶(POD)活性， 明显提高幼苗脯氨酸含量，明显降低丙二醛含量和相对电导率。20%PEG明显提高萝卜幼苗的抗冷能力。

关键词: 烟草, 烟草, 杂种优势, 雄性不育

Abstract:

Polyethylene glycol （PEG-6000）was used to study the effect on seed vigor and chilling resistance of radish seedlings. The results showed that 20%PEG significantly enhanced germination potentiality 、germination index 、 vigor index. Under Low temperature, 20% PEG treatment significantly increased the activity of superoxide dismutase (SOD), the activity of peroxidase (POD), improved proline content significantly ,reduced malondialdehyde(MDA) content and relative electrical conductivity in leaves of radish seedlings. 20% PEG improved chilling resistance of radish seedlings.