小麦耐光氧化性、叶绿素含量与千粒重、籽粒密度关系研究及其分子标记开发

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光氧化不仅降低作物的产量,而且对作物的品质也产生一定的影响,研究作物耐光氧化性具有重要的理论意义和应用价值。本文选用和尚麦/豫麦8679RILs群体以及79份育种材料作为试验材料,研究小麦耐光氧化性、叶绿素含量与千粒重、籽粒密度的关系,并进行盛花期和灌浆期叶绿素含量的QTLs定位研究。同时探索小麦油菜素内酯分解代谢的关键酶基因BAS1变异与千粒重、籽粒密度的关系,主要结果如下:1.2010年和尚麦/豫麦8679RILs群体和79份育种材料盛花期和灌浆期光氧化耐性指数与千粒重和籽粒密度相关性均
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