水杨酸、脱落酸对盐胁迫下玉米种子萌发和幼苗生长的影响
水杨酸(SA)、脱落酸(ABA)在植物体内具有重要的生理作用,利用不同浓度的SA、ABA及其复合溶液对玉米进行浸种和浇灌,通过测定盐胁迫下种子的发芽率、发芽势以及幼苗叶片叶绿素、可溶性糖和脯氨酸含量等生理指标,研究外施SA及ABA对盐胁迫下玉米种子萌发和幼苗生长的影响。结果表明：盐胁迫下,低浓度SA和ABA不同引发处理间玉米各项生理指标均表现出明显的差异,说明低浓度外源SA和ABA处理均能缓解盐胁迫对玉米的伤害,且二者同时使用具有相互促进的作用。
英文摘要:
The method of using different concentrations of salicylic acid, abscisic acid and its matching combination to water maize was used to study maize seed germination and maize seedling growth. The results showed that, low concentration of SA and ABA could obviously increase the germination rate, germinationSpotential of maize seeds and chlorophyll contents, soluble sugar content, proline content of maize seedlings under salt stress. The germination and growth effect of treatment with 0.25mmol/L SA + 8.0 mg/L ABA was the best , which reached the extremely significant level.
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