IBA处理对春剑水培苗生根的影响  

The Effects of IBA on the Rooting of Hydroponically Cultured Cymbidium longibracteatum Plants

作　　者：周启贵[1] 虎文静 

机构地区：[1]西南大学生命科学学院/三峡库区生态环境教育部重点实验室,重庆400715

出　　处：《西南大学学报（自然科学版）》2014年第9期70-74,共5页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(31171620);三峡库区生态环境教育部重点实验室自由探索基金资助项目

摘　　要：以春剑为材料,用0~80mg/L不同体积质量分数的吲哚丁酸(IBA)处理进行水培春剑对比试验,研究不同处理对其株高、株质量、根数等形态指标及叶绿素质量分数与过氧化氢酶活性等生理指标的影响.结果表明:不同体积质量分数IBA处理可促进水培春剑苗根的生长,其中体积质量分数在10mg/L^40mg/L时促进效果最好.生长过程中以20mg/L IBA处理促进叶绿素的合成作用最显著,而10mg/L IBA处理春剑水培苗的过氧化物酶活性最高.Young Cymbidium longibracteatum plants were treated with indole butyric acid （IBA） at 0 ,10 , 20 ,40 ,60 and 80 mg/L for 2 h and then cultured in the nutrition solution .Determinations were made at 20-day intervals of the morphological and physiological indicators ,including plant height ,plant weight and root number ,and chlorophyll content and catalase activity .The results showed that IBA of different concentrations promoted the root grow th of the hydroponic C. longibracteatum plants ,the concentration of 10 ,20 and 40 mg/L giving the best results ;and that chlorophyll content and catalase activity were the highest in the 10 mg/L and 20 mg/L treatments ,respectively ,in the adventitious root formation period .

关 键 词：春剑 生长 吲哚丁酸 水培 

分 类 号：Q949.718.43[生物学—植物学]