摘要
以盐敏感荞麦品种TQ-0808为实验材料,研究不同浓度外源苹果酸和柠檬酸对盐胁迫下荞麦种子萌发及幼苗生长的效应。结果表明,适当浓度的外源苹果酸和柠檬酸对盐胁迫下荞麦种子萌发及幼苗生长有明显的促进效应,特别是种子发芽率、活力指数及幼苗鲜重表现得较为明显,说明适当浓度的外源苹果酸和柠檬酸对盐胁迫具有较好的缓解作用,0.4 mmol/L苹果酸及0.8 mmol/L柠檬酸对盐胁迫下荞麦种子萌发及幼苗生长的促进作用最佳。
Salt-sensitive buckwheat variet‘y TQ-0808’was used as experimental materials,and the effect of exogenous malic acid and citric acid with different concentrations on seeds germination and seedlings growth of buckwheat under salt stress was studied.The results showed that the appropriate concentration of exogenous malic acid and citric acid could obviously promote the seeds germination and seedlings growth of buckwheat under salt stress,especially the germination rate and vigor index of seeds and fresh weight of seedlings were more obvious.It indicated that the appropriate concentration of exogenous malic acid and citric acid had mitigation to salt stress,and the concentration of malic acid at 0.4 mmol/L and that of citric acid at 0.8 mmol/L had the best promoting effect on seeds germination and seedlings growth of buckwheat under salt stress
出处
《吉林农业科学》
CSCD
北大核心
2013年第4期5-7,共3页
Journal of Jilin Agricultural Sciences
基金
山东省自然科学基金项目(ZR2010CL019)
关键词
荞麦
苹果酸
柠檬酸
种子萌发
生长
Buckwheat
Malic acid
Citric acid
Seeds germination
Growth
