萌发期低盐对4份玉米自交系的影响

Crop Research(2020)

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Abstract
利用不同浓度NaCl、Na2SO4的低盐,对郑58、DK516♀、DK516♂和昌7-2四份玉米自交系萌发期进行胁迫处理,研究低盐胁迫对4份自交系的影响.结果表明:胚芽长度、胚芽鲜重、胚芽干重、发芽指数和活力指数均随盐浓度的加大呈现先增加后降低的趋势,部分盐浓度间存在显著性差异;萌发期耐盐性综合表现为DK516♀、昌7-2较优,DK516♂次之,郑58表现较差.昌7-2和DK516♂根系相对发达,初步推断DK516♂和昌7-2抗倒伏能力相对较好,但有待大田试验进一步验证.
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