不同发芽床对赤瓟种子萌发及幼苗生长特性的影响  

Effects of different germination beds on seed germination and seedling growth characteristics of Thladiantha dubia Bunge

作　　者：花梅 尹大保 那亚 春霞 王俊杰 Huamei;YIN Dabao;Naya;Chunxia;WANG Junjie(College of Grassland,Resources and Environment,Inner Mongolia Agricultural University,Hohhot 010011,China)

机构地区：[1]内蒙古农业大学草原与资源环境学院,内蒙古呼和浩特010011

出　　处：《北方农业学报》2020年第6期93-97,共5页Journal of Northern Agriculture

基　　金：饲药两用道地蒙药材标准化种植产业体系研究项目(RZ1900001338);内蒙古农业大学人才引进优秀博士科研项目(NDYB2017-18)。

摘　　要：【目的】研究不同发芽床对不同颜色赤瓟种子萌发及幼苗生长特性的影响。【方法】通过纸上、纸间、沙上、沙间不同发芽床条件下进行赤瓟种子萌发,探讨不同颜色赤瓟种子在不同发芽床上的萌发规律。【结果】黑色赤瓟种子在纸间发芽床上的发芽率和发芽势高于灰色赤瓟种子,依次为纸间>沙上>纸上>沙间;两个不同颜色赤瓟种子萌发后期,灰色种子沙上发芽床的胚根生长比黑色种子快,而沙间发芽床的赤瓟种子没有萌发;通过育苗培养,黑色种子的叶长和叶宽均大于灰色种子。【结论】两个不同颜色的赤瓟种子在纸间发芽床和沙上发芽床的发芽较好,黑色种子的苗期长势较灰色种子更为突出。【Objective】To study the effects of different germination beds on seed germination and seedling growth characteristics of Thladiantha dubia Bunge.【Methods】The seeds of Thladiantha dubia Bunge were germinated on the germination bed,which had four levels:on paper,between paper,on sand and between sand.The objective was to explore the germination regularity of different color seeds in different germination beds.【Results】The germination rate and germination potential of black seeds on the between paper germination bed were higher than those of the gray seeds,and the order was between paper>on sand>on paper>between sand level.At the later stage of germination of two different color seeds,the radicle growth of grey seeds on sand was faster than that of black seeds,but the seeds of Thladiantha dubia Bunge on between sand level didn′t germinate.Through seedling cultivation,the leaf length and width of black seeds were larger than those of gray seeds.【Conclusion】The two different color seeds germinated better at between paper and on sand levels,and the growth of black seeds was more prominent than that of gray seeds.

关 键 词：赤瓟种子 发芽床 萌发 幼苗生长特性 

分 类 号：Q944[生物学—植物学]