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多效唑对金钗石斛试管苗生长的影响
黎建玲;詹源庆;蒋波;
1.玉林师范学院;2.玉林师范学院 广西玉林537000;3.广西玉林537000
摘要:
多效唑是一种高效的植物生长延缓剂,通过不同浓度的多效唑对金钗石斛试管苗生长的影响进行研究。结果表明多效唑能明显提高金钗石斛试管苗再生芽分化的数量,促进再生苗根的分化,提高生根的数量;同时,多效唑能使再生苗的叶片变短,对再生植株有显著的矮化作用,使植株的茎段变粗,抑制根的伸长生长。多效唑对金钗石斛试管苗生长的影响具有明显的规律性,其作用效果均随着其使用浓度的升高而增强,并在3~4mg/L的范围处达到最强效果,再提高浓度则趋于饱和。
关键词:  多效唑    金钗石斛    试管苗    再生
DOI:
分类号:
Fund project:广西区教育厅科研经费资助项目(2003(22))~~
Abstract:
Key words:  
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