期刊文献+

七叶一枝花种子萌发特性研究 被引量:25

Study on Seed Germination Characteristics of Paris polyphylla Smith var. chinensis( Franch. ) Hara
下载PDF
导出
摘要 目的:七叶一枝花是一种名贵中药材,野生资源奇缺,种子休眠期长,自然发芽率低,通过人工方法打破休眠,提高发芽率,缩短生长周期;方法:采用变温层积与植物激素处理相结合打破休眠,探究温度、基质、光照对其萌发的影响;结果:发现七叶一枝花种胚有二次休眠现象,采用细沙层积冷藏变温处理后再用50~100mg·L。的GA,处理24h,以细沙为基质,在20℃温度下催芽60d后,可使发芽率达到90%以上。 Objective : Paris polyphylla Smith var. chinensis ( Franch. ) Hara is a kind of rare medicinal herbs, the wild resources are scarce, the seed dormancy is long and the natural germination rate is low. Through artificial methods broke dormancy, improved the germination rate and shortened the growth cy- cle. Methods: Using variable temperature stratification combined with hormone treatment broke dorman- cy and explored the temperature, substratc, light on seed germination. Conclusion: The embryo of Paris polyphylla Smith var. chinensis ( Franeh. ) Hara embryo had secondary dormancy. Processing with temper- ature stratification and 50 - 1130 rag L- 1 GA3 for 24 h, with fine sand as substrate, at 20 ~C temperature of 60 d, the germination rate of Paris polyphyUa Smith var. chinensis ( Franeh. ) Hara could reach 90%.
出处 《中国野生植物资源》 2013年第5期16-20,共5页 Chinese Wild Plant Resources
关键词 七叶一枝花 种子萌发 特性 Paris polyphylla seed dormancy traits
  • 引文网络
  • 相关文献

参考文献10

二级参考文献91

共引文献187

同被引文献290

引证文献25

二级引证文献121

;
使用帮助 返回顶部