两种老鹳草属种子萌发特性研究  

Study on Seed Germination Characteristics of Two Species of Geraniums

作　　者：吴超然[1,2,3] 王雪芹[1,2,3] 刘恒星[1,2,3] 郭翎[1,2,3] 

机构地区：[1]北京市植物园,北京100093 [2]北京市花卉园艺工程技术研究中心,北京100093 [3]城乡生态环境北京实验室,北京100093

出　　处：《北方园艺》2017年第14期65-69,共5页Northern Horticulture

基　　金：北京市共建专项资助项目;北京市科学技术委员会资助项目(D161100001916001)

摘　　要：以草原老鹳草和毛蕊老鹳草为试材,采用不同种子处理方法、不同的萌发温度条件,测定2种老鹳草种子的发芽率、发芽势,研究老鹳草种子萌发特性,以期为老鹳草属植物的选育、繁殖提供参考。结果表明:不同老鹳草属种子在相同处理条件下的萌发率不同。2种老鹳草属种子萌发要求的最佳温度也不同。草原老鹳草种子发芽率最高是经砂纸摩擦处理组,为88.3%,发芽势为88.3%,最佳萌发温度为20℃。毛蕊老鹳草种子发芽率最高的是砂纸摩擦处理组,为86.6%,发芽势为86.6%,最佳萌发温度为25℃。Geranium pratense and Geranium platyanthum were used as test materials,under different seed treatments and different temperature conditions,the germination rate and germination potential of two kinds of Geraniumseeds were determined,and the germination characteristics of Geranium were studied in order to provide reference for breeding and reproduction of the genus Geranium.The results showed that different Geraniums had various germination rates at the same condition.The best temperatures of germination were different between these two Geraniums.The highest germination rate of Geranium pratense seeds was up to 88.3% and the highest germination potential was up to88.3% at 20 ℃,when the seeds were scraped with sandpaper.Correspondingly,Geranium platyanthum seeds,the highest germination rate up to 86.6% and the highest germination potential was up to 86.6% at 25 ℃,when the seeds were scraped with sandpaper.

关 键 词：老鹳草 种子 萌发特性 

分 类 号：S681.9[农业科学—观赏园艺]