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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (24): 52-55.

• 生物技术科学 • 上一篇    下一篇

含羞草种子萌发特性研究

张莹 李思锋 王庆 李艳 张瑞博   

  • 收稿日期:2010-05-08 修回日期:2010-07-08 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    西安市科技攻关项目;陕西省科学院重大项目

Study on Seed Germination Characters of Mimosa pudica L．

  • Received:2010-05-08 Revised:2010-07-08 Online:2010-12-20 Published:2010-12-20

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摘要：

采用浓硫酸酸蚀、烫种、砂磨等不同处理方法对含羞草种子进行萌发试验，测定其发芽率、发芽势及在不同温度下的生长势，探讨含羞草种子的萌发特性。结果表明：未经处理的含羞草种子发芽率为13.6%，硬实率达60.6%；种皮是影响其萌发的主要因素，95℃1min烫种对含羞草种子萌发作用明显，发芽率、发芽势最高，分别为94.3%、92.0%；浓硫酸处理50min也可提高含羞草种子萌发，发芽率、发芽势分别为84.0%，79.7%；砂磨处理发芽率为16.3%，效果不明显；含羞草种子萌发最适温度为30℃。

关键词: 退耕还林, 退耕还林, 黄土丘陵区, 土壤物理性质, 定西市

Abstract:

Germination percentage, germinating energy and the growth at different temperatures and seed germination characteristics of Mimosa pudica were tested by etch of 98% H2SO4, scalding method, sanding. The results showed that un-treated seeds germination percentage of Mimosa pudica was 13.6%, rate of hard is 60.6%; The main factor of affect germination is seed coat. Seed germination percentage was increased by 95 ℃ 1 min hot-water treating, the germination percentage and germination energy were 94.3%, 92.0%; The germinating ability also was increased by etch of 98% H2SO4 50min treating, the germination percentage and germination energy were 84.0% and 79.7%; The germination percentage of sanding was 16.3%, the effect is not obvious; Optimum temperature of seed germination for Mimosa pudica is 30℃.