草地学报

草地学报 ›› 2016, Vol. 24 ›› Issue (6): 1378-1383.DOI: 10.11733/j.issn.1007-0435.2016.06.033

• 研究专报 • 上一篇    下一篇

5种处理方法对沙生针茅种子萌发影响的研究

郭春秀1,2, 姚拓1,2, 李发明3, 王理德3, 朱淑娟3, 刘淑娟3, 刘克彪3   

  1. 1. 甘肃农业大学草业学院, 甘肃 兰州 730070;
    2. 草业生态系统教育部重点试验室, 甘肃 兰州 730070;
    3. 甘肃省治沙研究所/甘肃省荒漠化与风沙灾害防治国家重点实验室, 甘肃 兰州 730070
  • 收稿日期:2014-12-09 修回日期:2015-05-09 出版日期:2016-12-15 发布日期:2017-03-18
  • 通讯作者: 姚拓
  • 作者简介:郭春秀(1979-),女,甘肃民勤县人,博士,副研究员,主要从事荒漠生态及草地生物多样性方面研究,E-mail:guochunxiu0414@163.com
  • 基金资助:

    国家地区基金项目（31160264，31560128，31160116）；国际科技合作与交流专项（2010DFA32850，2010DFA92860）；甘肃省攻关计划项目（2GS042-A41-002-02）；甘肃省自然基金项目（1010RJZA146）资助

Effect of Five Different Treatments on Seed Germination of Stipa glareosa

GUO Chun-xiu1,2, YAO Tuo1,2, LI Fa-ming3, Wang Li-de3, ZHU Shu-juan3, LIU Shu-juan3, LIU Ke-biao3   

  1. 1. College of Pratacultural Science, Gansu Agricultural University, lanzhou, Gansu Province 730070, China;
    2. Key Laboratory of Grassland Ecosystem, Ministry of Education, lanzhou, Gansu Province 730070, China;
    3. Gansu Desert Control Resesrch Institiute/State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, lanzhou, Gansu Province 730070, China
  • Received:2014-12-09 Revised:2015-05-09 Online:2016-12-15 Published:2017-03-18

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摘要：

为了揭示沙生针茅（Stipa glareosa）种子萌发机理，探索促进其种子萌发的方法，以其种子为材料，采用室内控制试验，测定不同处理对种子萌发的影响。结果显示：60℃蒸馏水浸泡种子24 h，-20℃、20℃低温变温处理96 h，80 mg·L-1赤霉素（GA3）水溶液浸泡种子24 h，均能提高种子的发芽率和发芽势，且以80 mg·L-1 GA3处理效果最好。

关键词: 沙生针茅, 温水浸泡, 低温变温处理, 赤霉素(GA3)处理, 发芽率, 发芽势

Abstract:

In order to know the germination mechanism and to explore the methods promoting the germination of Stipa glareosa seeds, an indoor controlled experiment was done. The effects of the five different treatments on seed germination were measured. The results showed that:the treatments of soaking seeds in 60℃ distilled water for 24 h, -20℃ low temperature alternating temperature of -20℃/20℃ (12 h/12 h) for 96 h, and soaking seeds with 80 mg·L-1 GA3 solution for 24 h, could increase germination rate and vigor. And 80 mg·L-1 GA3 treatment is the best.

Key words: Stipa glareosa, Warm water soaking, Alternating temperature treatment, Gibberellic acid (GA3) treatment, Germination rate, Germination vigor

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