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Effects of Foliar Spraying ABA on Cold Resistance of Festuca arundinacea
Author(s): 
Pages: 94-99
Year: Issue:  6
Journal: Grassland of China

Keyword:  脱落酸 高羊茅 抗寒性;
Abstract: 采用盆栽试验的方法,研究了叶面喷施不同浓度ABA(5mg/L、15mg/L、30mg/L)对高羊茅抗寒性的影响。结果表明:冬季低温胁迫下,经叶面喷施脱落酸处理后高羊茅的绿度和生长势提高,可溶性糖和游离脯氨酸的含量增加、保护酶SOD、POD和CAT的活性增强,丙二醛含量和相对电导率降低。其中喷施ABA 15mg/L处理的膜脂过氧化水平最低,体内渗透调节物质积累最多,保护酶系统活性最强,抗寒效果最佳。
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