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硝酸镧对董棕幼苗耐寒性的影响
Authors
刘与明
姚碧艳
+4 more
李振基
王芬芬
阮志平
黄全能
Publication date
20 February 2012
Publisher
Abstract
为了研究不同质量浓度的硝酸镧溶液对董棕Caryota urens幼苗耐寒性的影响,用0,100,350和500 mg.L-14种质量浓度的硝酸镧溶液喷施董棕叶片,并分别经过25℃—5℃—25℃各24 h变温冷胁迫处理后,研究董棕叶片在变温冷胁迫过程中的超氧化物歧化酶(SOD),过氧化物酶(POD),丙二醛(MDA),脯氨酸(Pro),可溶性蛋白质和叶绿素生理指标的动态变化规律,并对25℃恢复24 h后的董棕幼苗上述耐寒指标进行模糊隶属函数综合评价。结果表明:4种质量浓度下隶属函数值分别为0.39,0.34,0.85和0.76,其中350 mg.L-1的硝酸镧溶液对提高董棕的耐寒性效果最好
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Last time updated on 16/06/2016