水分胁迫下硝态氮营养提高了苗期小麦的光合速率

来源 :2013全国植物生物学大会 | 被引量 : 0次 | 上传用户：zhhc1987

【摘要】

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冬小麦在苗期经常遭遇降水贫乏，使幼苗的光合作用和生长受到抑制，最终影响物质和能量的积累.本文通过15％ (m/v) PEG-6000(-0.24 Mpa)模拟干旱的水培试验研究了硝态氮(NO3-)、铵态氮(NH4+)和铵硝混合态氮对冬小麦望水白的光合作用的影响，以期为耐旱品种选育和改良提供理论依据.试验于温室进行，幼苗分别用3种不同氮素形态的营养液培养，五叶期进行干旱处理5d.

【作者】

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韩慧敏田中伟蔡剑姜东曹卫星戴廷波

【机构】

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南京农业大学农业部作物生理生态与生产管理重点实验室,江苏南京 210095 南京农业大学农业部作

【出处】

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2013全国植物生物学大会

【发表日期】

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2013年4期

【关键词】

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小麦氮素形态水分胁迫光合作用

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水分胁迫下硝态氮营养提高了苗期小麦的光合速率

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