海蒿子提取液对曼陀罗种子萌发及幼苗生长的影响  

Influence of Sargassum pallidum(Turn.) C. Ag Concentrate on the Seed Germination and Seedling Growth of Datura Stramonium L

作　　者：武冬雪[1] 高原[1] 韩晓弟[1] 

机构地区：[1]山东大学威海分校海洋学院,山东威海264209

出　　处：《北方园艺》2009年第4期30-32,共3页Northern Horticulture

基　　金：山东威海市科技攻关资助项目(0000413420613)

摘　　要：研究了不同浓度的海蒿子提取液对曼陀罗种子萌发及幼苗生长的影响。结果表明:海蒿子提取液可提高曼陀罗种子的萌发率、发芽指数及发芽势,并可促进幼苗的生长。而且,提取液可促进曼陀罗根系的生长发育,增加根系鲜重;促进地上部分的生长,其干重、鲜重明显提高。叶片中叶绿素含量随幼苗的发育呈增加趋势,不同浓度的提取液与阴性对照相比可提高幼苗叶片中叶绿素a、类胡萝卜素的含量和色素总量,对叶绿素b的作用无规律性。According to the experiment,researched the influence of the concentrate of Sargassum pallidum （Turn.） C. Ag in different chroma on the seed germination and seedling growth of Datura stramonium L. The statistics of the experiment showed that the concentrate of .Sargassunn pallidum （Turn.）c. Ag can increase the geimination rate, geimination potential and geimination index of seed of Datura stramonium L. They can promote growth of root system;and increase fresh weight. It also accelerated aerial part growth, fresh and dry weight. Chlorophyll content in lamina added gradually along with the seedling development, what＇s more, different chroma of the concentrate can increase the content of Chla, carotenoid and the pigment gross; but there was not change orderliness to the Chlb content absence.

关 键 词：海蒿子 曼陀罗 种子萌发 幼苗生长 

分 类 号：S482.8[农业科学—农药学]