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Effects of Content of Endogenersis Hormones on Stem Growth of Dendrobium in Huoshan
Author(s): 
Pages: 345-348
Year: Issue:  5
Journal: ACTA LASER BIOLOGY SINICA

Keyword:  石斛内源GA含量内源ABA含量茎生长;
Abstract: 本文研究了霍山三种石斛生长期的内源激素GA、ABA的变化与茎高生长的相互关系.结果表明:霍山三种石斛茎高生长与内源GA含量呈显著正相关,与内源ABA含量呈显著负相关.合适的GA/ABA比值是影响石斛茎高生长的重要因素.霍山三种石斛中的矮生品种米斛的内源GA含量尽管也较高,但其内源ABA含量一直维持较高水平,尤其生长后期迅速上升,GA/ABA含量比值低可能是其茎高生长缓慢的原因之一.
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