摘要
研究不同浓度一氧化氮供体硝普钠(SNP)处理对土壤水分胁迫下巴西蕉幼苗生理特性影响的结果表明:4个SNP处理浓度(0.05mmol/L,0.1mmol/L,0.5mmol/L,1.0mmol/L)均能显著降低干旱条件下巴西蕉幼苗叶片的相对电导体率及MDA含量,提高叶片相对含水量、脯氨酸含量及SOD活性,从而提高巴西蕉幼苗的抗旱性。综合表现来看,以0.5mmol/L的处理浓度效果最佳。
In this study, effects of sodium nitroprusside （SNP, an exogenous nitric oxide donor） on seedling physiological characteristics of banana cuhivar ＂Brazil＂ （Musa AAA Cavendish） under varying soil water stress were investigated. The results showed that four SNP treating concentrations including 0.05 mmol/L, 0.1 retool/L, 0.5 mmol/ L and 1.0 mmol/L could all reduce the relative conductivity and the content of malondialdehyde （MDA） in plant leaves, and increase the leaf relative water content, the content of proline and the activity of superoxide dismutase （SOD） in plant leaves under different drought conditions. It is thus suggested that SNP could improve drought resistance of brazilian banana seedlings, the optimum SNP concentration was expected to be 0.5 mmol/L.
出处
《安徽农学通报》
2010年第10期33-35,68,共4页
Anhui Agricultural Science Bulletin
基金
Nyhyzx07-029公益性行业科技"香蕉现代产业技术体系研究与建立"
Nycytx-33国家香蕉产业体系建设
关键词
巴西蕉
硝普钠(SNP)
干旱胁迫
Musa AAA Giant Cavendish cv Brazil
Sodium nitroprusside （SNP）
Drought resistance
