野菊花种子发芽特性的研究  

Study on Germination Characteristic of Seed of Dendranthema indicum

作　　者：郑芳昊[1] 潘超美[1] 赖珍珍[1] 夏静[1] 梁钻姬[1] 刘欣[1] 

机构地区：[1]广州中医药大学中药学院,广东广州510006

出　　处：《中药材》2012年第3期351-354,共4页Journal of Chinese Medicinal Materials

基　　金：广东省科技厅社会发展引导项目(2008B080701030)

摘　　要：目的:通过对不同前处理、外源激素和不同温度的研究,找出野菊花种子合适的发芽条件,从而为野菊花的规范化栽培提供一定的依据。方法:测定了供试野菊花种子的净度、千粒重、含水量及种子活力等。利用不同前处理(酸处理、碱处理、温水浸泡、沸水浸泡)、不同激素(IBA、NAA、6-BA)、不同温度(10、20、25、30℃)等处理对野菊花种子进行发芽试验,测定发芽率、发芽势及发芽指数。结果:供试野菊花种子净度99.4%,千粒重0.2941 g,含水量4.39%,种子活力85.3%;前处理试验并没有提高野菊花种子的萌发率;不同激素对野菊花萌发影响较小;温度对野菊花种子发芽率及发芽势的变化影响明显。结论:温水浸种后,在25℃光照条件下进行纸上培养是野菊花种子萌发比较合适的条件。Objective：To find out the optimum condition for the germination of seed of Dendranthema indicum by studying the effects of pretreatment,phytohormone and temperature on it,and offer the basis for its standardized culture.Methods：The seed purity,weight per 1000 seeds,seed moisture content and seed viability were determined.The germination of D.indicum seed was tested under following conditions： pretreatment（acid,base,warm water,boiling water）,phytohormone（IBA,6-BA,NAA）and treatments under different temperature（10,20,25,30 ℃）.Results： The seed purity was 99.4%;The weight per 1000 seeds was 0.2941g;The seed moisture content was 4.39%;The seed viability was 85.3%;The tests of pretreatment couldn＇t increase the germination of D.indicum seed;Phytohormone had limited effect on the germination of the seed;Temperature condition showed significant effects on the germination.Conclusion：The optimum condition for the germination of the seed of D.indicum is 25 ℃ on filter paper.

关 键 词：野菊花 种子 萌发率 

分 类 号：R282.2[医药卫生—中药学]