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ABA和PP333对蕙兰抗寒性的影响

于永畅,张林,王厚新,李承秀,孙芳,牛田,颜婷美,王长宪

Chinese Agricultural Science Bulletin（2013）

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Abstract
为探讨植物生长调节剂ABA和PP333对蕙兰低温胁迫下抗寒性指标的影响,以蕙兰名品‘大一品’为试验材料,采用不同浓度的ABA和PP333对‘大一品’幼苗叶片进行叶面喷施处理,于光照培养箱[昼温腋温=(5±0.5)℃/(0±0.5)℃]中进行低温处理,研究ABA和PP333对蕙兰抗寒性指标的影响.结果表明:ABA和PP333处理均降低了受低温胁迫的蕙兰叶片的相对电导率,提高了游离脯氨酸、可溶性糖含量和POD活性,对冷害具有缓解作用,所有处理中以15 mg/L和20 mg/L ABA处理效果最好.
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Key words
Cymbidium faberi,relative conductance rate,frost resistance,soluble sugar
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