欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2006, Vol. 22 ›› Issue (9): 233-233.

所属专题： 生物技术

• 农学 农业基础科学 • 上一篇    下一篇

外源水杨酸对油桃雌蕊抗寒性的生理效应

齐秀东,刘艳芳   

  • 出版日期:2006-09-05 发布日期:2006-09-05

Physiological Effect of Different Concentration Exogenous Salicylic Acid on the Cold-resistance of Nectarine Pistil at Low Temperature

Qi Xiudong, Liu Yanfang   

  • Online:2006-09-05 Published:2006-09-05

摘要： 在0℃低温下，用0、5、15、25、45和80mg/L的外源SA处理‘冀东1号’桃花，试验结果表明，0℃低温使‘冀东1号’桃花雌蕊形态恶变，电解质外渗率增强，SOD和POD活性下降，MDA含量增高。经5~80mg/L SA处理的桃花，雌蕊形态恶变减轻，电解质外渗率和MDA含量显著下降；5~25mg/L SA处理使SOD活性显著升高，但45~80mg/L SA处理使SOD活性显著下降；25mg/L SA处理使POD活性升高，其它处理使POD活性下降。试验研究认为，外源SA可以提高油桃花朵的抗寒性，以25mg/L外源SA处理的效果最佳。

关键词: 麦长管蚜, 麦长管蚜, 麦二叉蚜, 禾谷缢管蚜, 迁飞

Abstract: Nectarine flowers were cultivated with 0, 5, 15, 25, 45, 80mg/L exogenous salicylic acid (SA) liquid in zero temperature. The results showed that: pistil shape of nectarine flowers was destroyed seriously, electrolyte exosmosis rate and the content of Malondialdehyde (MDA) increased, activities of superoxide dismutase (SOD) and peroxidase (POD) decreased. Treated with 5~80mg/L SA, destroyer of nectarine flowers were faint, electrolyte exosmosis rate and the content of MDA decreased obviously. Treatments with 5~25mg/L SA resulted the activity of SOD increased, but 45~80mg/L SA made it decreased obviously. Activity of POD was higher only at 25mg/L. The best effect concentration in all of the treatments was 25mg/L SA.

中图分类号: