• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

白及种子非共生培养高效萌发体系的研究

Efficient Germination System in Asymbiotic Culture of Bletilla Striata (Thunb.)Reichb. F.

  • 摘要: 以白及近成熟蒴果为材料,无菌播种于MS基本培养基上进行非共生培养研究,比较了播种法、播种量、贮藏法、光照及添加物等对种子萌发的影响,建立白及种子非共生培养高效萌发体系。结果表明:白及种子适宜采用5×103粒·mL-1密度悬液法播种于MS培养基上,并在播种后前14 d进行黑暗培养,萌发率达93%。添加10%土豆泥或椰汁能有效提高萌发率,促进原球茎的生长。塑料袋包装低温贮藏利于白及种子保存,贮藏60 d仍有一半萌发。

     

    Abstract: The mature capsule of Bletilla striata was used as material for asymbiotic germination in this experiment. With MS as basal medium, effects of different sowing ways, seedling rates, storage ways, light conditions and additives on the seed germination of Bletilla striata were studied. The results showed that the best germination conditions for asymbiotic culture of Bletilla striata is with seedling rate 5×103 grains·mL-1 in suspended liquid, and cultured in dark conditions for the first 14 days, the germination rate of which reached 93%. Adding 10% mashed potato or coconut juice could increase the germination rate, and promote the growth of protocorm. The seeds of Bletilla striata stored in plastics bags at 4℃ was beneficial for germination, the germination rate for which could reach 50% after 60 days.

     

/

返回文章
返回