不同生长素处理和营养液浓度对双瓣茉莉水培扦插生根的影响  

Effects of auxin and nutrient solution concentration on rooting of Jasminum sambac cutting under hydroponics

作　　者：王健省 程琳琳 王旭[1] 陈婷[1] 符汉苗 

机构地区：[1]海南大学园艺园林学院,海口570228 [2]省部共建国家重点实验室培育基地-海南省热带作物栽培生理学重点实验室,海南儋州571737

出　　处：《南方农业学报》2015年第2期282-285,共4页Journal of Southern Agriculture

基　　金：海南大学中西部提升综合实力计划学科建设项目(ZXBJH-XK008)

摘　　要：【目的】探讨不同生长素预处理和营养液浓度对双瓣茉莉插穗生根的影响,为双瓣茉莉规模化水培生产提供参考依据。【方法】以双瓣茉莉枝条为试材,利用IAA、IBA及NAA 3种生长素及1/2和1/4园试营养液进行生根效果对比试验,探讨不同生长素及园试营养液浓度对双瓣茉莉枝条的生根效果。【结果】清水培养时,250.0 mg/L NAA处理的双瓣茉莉全部生根,且根总长最长、根表面积最大,与其他处理差异显著(P<0.05,下同);350.0 mg/L IBA处理的生根率及根平均直径显著优于IAA处理;250.0和350.0 mg/L NAA处理与1/4园试营养液配合使用,双瓣茉莉插穗生根率分别达100.00%和80.00%。【结论】250.0 mg/L NAA与高浓度园试营养液配合使用可促进双瓣茉莉插穗生根,350.0 mg/L NAA与低浓度园试营养液配合使用可促进双瓣茉莉插穗根系生长。【Objective】The Effects of type and concentration of auxin and nutrient solution on Jasminum sambac branches rooting were explored for large-scale hydroponic Jasminum sambac production. 【Method 】Cuttings of Jasminum sambac were soaked in three concentrations of auxin（IAA,IBA and NAA） and water（no auxin）,followed by cultured in three concentrations of nutrient solution（1/4,1/2 and 0） to explore the effects of auxin and nutrient solution on cutting. 【Result】Rooting rate was 100% and total root length and root surface area were the largest with 250.0 mg/L NAA, significantly higher than those in other treatments（P〈0.05,the same below）. Rooting rate and average root diameter were greater in 350.0 mg/L IBA than in IAA. Rooting rate of Jasminum sambac cutting in a combination of250.0 mg/L and 350.0 mg/L NAA with 1/4 nutrient solution was 100.00 % and 80.00%, respectively. 【Conclusion 】250.0 mg/L NAA combined with nutrient solution of high concentration is most favorable for rooting, and 350.0 mg/L NAA combined with nutrient solution of low concentration is most suitable for root growth.

关 键 词：生长素 营养液浓度 双瓣茉莉 水培 生根 

分 类 号：S685.16[农业科学—观赏园艺]