野生巴戟天种子萌发特性的研究  

Studies on Seed Germination Characteristics of Wild Morinda officinalis How

作　　者：罗进辉[1] 苏健芬[1] 丁平[1] 赖小平[1] 

机构地区：[1]广州中医药大学中药学院,广东广州510405

出　　处：《广州中医药大学学报》2010年第3期288-290,共3页Journal of Guangzhou University of Traditional Chinese Medicine

基　　金：广东省自然科学基金重点项目(编号:06105061);国家"十一五"支撑项目(编号:2006BA106A11-02)

摘　　要：【目的】观察不同处理方法对野生巴戟天种子萌发的影响,为巴戟天的栽培种植提供依据。【方法】观测野生巴戟天种子的形态、千粒质量、吸水性和不同处理方法下种子的发芽率、发芽势和发芽指数。【结果】种子的千粒质量为38.03 g,种皮的透水性良好,剥除种皮、硫酸酸蚀处理、剥除种皮与外源激素[赤霉素(GA)、6-苄基腺嘌呤(6-BA)]综合处理均能提高种子发芽率,其中以剥除种皮与4 mg/L 6-BA综合处理发芽率最高(P<0.05),达88.89%,发芽势与发芽指数也最高。【结论】种皮含有的萌发抑制物是巴戟天种子萌发困难的主要原因,其种子内部含有的萌发抑制物也对萌发构成一定的影响。Objective To study the effect of different treatment methods on seed germination of wild Morinda officinalis How（MOH）,which will provide evidence for breeding new cultivars of MOH.Methods We observed the morphological feature,thousand-seed weight and hygroscopicity of wild MOH,and studied the effect of different treatment methods on the germination rate,germination vigor,and germination index of the seeds.Results The thousand-seed weight was 38.03 g and the seed coat had good hygroscopicity.Stripping seed coat,acid etching with sulfuric acid,and the combined treatment of stripping seed coat with exogenous hormones of gibberellin（GA） and 6-benzyladenine（6-BA） had an effect on increasing germination rate,and the germination rate arrived 88.89% after the combined treatment of stripping seed coat with 4 mg/L 6-BA.Conclusion The germination inhibitors containing in the seed coat mainly contribute to the difficulty of the germination of MOH,and the germination inhibitors containing in the seed also have some influences on the germination.

关 键 词：巴戟天/生长和发育 种子 萌发 

分 类 号：R282.2[医药卫生—中药学]