关键词: 赤瓟种子, 发芽床, 萌发, 幼苗生长特性

Abstract: 【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.

Key words: The seeds of Thladiantha dubia Bunge, Germination bed, Germination, Seedling growth characteristics