外源有机酸对盐胁迫下荞麦种子萌发及幼苗生长的效应
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Q945.78

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山东省自然科学基金项目(ZR2010CL019)


Effect of Exogenous Organic Acid on Seeds Germination and Seedlings Growth of Buckwheat under Salt Stress
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    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。

    Abstract:

    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.

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杨洪兵.外源有机酸对盐胁迫下荞麦种子萌发及幼苗生长的效应[J].东北农业科学,2013,38(4):5-7.

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  • 收稿日期:2013-04-11
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  • 在线发布日期: 2024-12-06
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