SNP对控水条件下不同马铃薯品种生理活性及产量、品质的影响

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干旱是作物生长中最重要的环境限制因子之一,且同一物种不同品种对干旱胁迫的响应不同。硝普钠是NO供体,可以诱导植株的防御反应。本研究以马铃薯品种大西洋和底西瑞为材料,在干旱胁迫后采用0.01mmol/L的硝普钠喷施现蕾期植株,然后复水、控水循环处理,研究了两个品种间生理活性、块茎产量和品质的差异以及硝普钠处理对马铃薯生理活性、块茎产量及品质的影响,结果如下:1.不同抗旱性的马铃薯品种在干旱状态下表现为:大西洋的气孔导度和过氧化氢含量显著高于底西瑞的,SPAD值、游离脯氨酸含量、丙二醛含量、转化酶活性、
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