以硝普钠作为外源一氧化氮(nitric oxide,NO)供体,研究NO对盐胁迫下小白菜种子萌发的影响.结果表明:小白菜在5‰盐度下生长情况最好;较高盐度(15‰)下,种子萌发和生长受到明显抑制,30‰盐度完全抑制种子萌发.较低盐度海水可以作为植物生长的营养液,促进小白菜种子萌发;外加0.01 mmol/L SNP能够提高白菜种子的发芽率、发芽指数.
In this paper, effect of NO on germination of Cabbage under salt stress produced by SNP was studied. The results show that cabbage under salinity of 5%0 grows better than other salinities including control treatment. The development of cabbage was inhibited under salinity of 15‰, seeds of cabbage under 30‰ salinity couldn't germinate. Low salinity of seawater could be used as nutritious solution for plants growth. We found that low concentration of SNP could increase germination rates and index significantly when cabbages were treated with various concentrations of SNP.