草地学报

›› 1996, Vol. 4 ›› Issue (2): 134-140.DOI: 10.11733/j.issn.1007-0435.1996.02.008

• 研究论文 • 上一篇    下一篇

小冠花种子休眠与萌发的研究

徐本美1, 冯桂强1, 白原生2, 孙洁2, 梁飞凤2, 刘宝莲2, 杨惠清2   

  1. 1. 中国科学院植物研究所, 北京100093;
    2. 山西省农牧厅牧草站, 太原030001
  • 出版日期:1996-05-15 发布日期:2012-07-11

Study on the Dormancy and Germinaton of the Seed of Coronilla varia

Xu Benmei1, Feng Guiqiang1, Bai Yuansheng2, Sun Jie2, Liang Feifeng2, Liu Baolian2, Yang Huiqing2   

  1. 1. ijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing 100093;
    2. Forage Station, Department of Agriculture and Animal Husbandry, Shanxi Province 030001
  • Online:1996-05-15 Published:2012-07-11

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摘要： 小冠花种子中的硬实率达20～60%,破除硬实用浓硫酸浸泡20分钟。实验中将吸胀的种子作为对照,将第五天尚未吸胀的种子作为硬实。将处理后的硬实种子与对照同步发芽,测试其生理生化指标。结果表明,硬实种子的发芽率、活力指数、ATP含量和抗逆性均高于对照,而电导率则低于对照,表明小冠花的硬实粒是高活力种子。

关键词: 小冠花, 硬实, 种子休眠与前发, 种子活力

Abstract: Coronilla varia is excellent forage.Its optimum germinative temperature was 20℃ and its hard seed proportion reached 20~60%.The method of breaking its dormancy was to soak it with the concentrated sulphuric acid for 20 minutes.We picked out the imbibing seeds during the germination in the experiment and check the seeds every day, and then determined the unimbibing seeds as the hard seeds at the fifth day.The hard seeds treated were germinated with the seeds in the check group at the same time.All kinds of physio logical biochemical standard were measured.This experimental result showed that the percentage of germina tion, vigor index, ATP content resistance of the hard seeds were all higher than the seeds in the check group,but the electric conductivity of the hard seeds was lower than that of the seeds in the check group.All these indicated that the hard seeds was the high vigor seeds among the lots of Coronilla varia seeds.

Key words: Hard seed, Coronilla varia, Seed vigor, Seed germination and dormancy