湖北农业科学 ›› 2019, Vol. 58 ›› Issue (22): 134-137.doi: 10.14088/j.cnki.issn0439-8114.2019.22.031

• 园艺·特产 • 上一篇    下一篇

金果榄种子特性及不同沙藏方式促进发芽的研究

薛襟祺1, MohammadMurtazaAlami1, 王学奎1, 刘三波2, 龚达林2, 王雪松1   

  1. 1.华中农业大学植物科学技术学院,武汉 430070;
    2.华润三九(黄石)药业有限公司,湖北 黄石 435000
  • 收稿日期:2019-01-18 出版日期:2019-11-25 发布日期:2019-12-09
  • 通讯作者: 王学奎,男,副教授,主要从事药用植物学研究,(电子信箱)wang-xuekui@mail.hzau.edu.cn。
  • 作者简介:薛襟祺(1994-),男,河南栾川人,在读硕士研究生,研究方向为中药材栽培生理,(电话)15827054915(电子信箱)1517458228@qq.com。
  • 基金资助:
    金果榄繁育及栽培技术研究(0220170590)

Research on seed characteristics of Tinospora capillipes Gagnep and promotion of germination under the different sand storage ways

XUE Jin-qi1, Mohammad Murtaza Alami1, WANG Xue-kui1, LIU San-bo2, GONG Da-lin2, WANG Xue-song1   

  1. 1.College of Plant Science & Technology,Huazhong Agricultural University,Wuhan 430070,China;
    2.China Resources Sanjiu (Huangshi) Pharmaceutical Co.,Ltd.,Huangshi 435000,Hubei,China
  • Received:2019-01-18 Online:2019-11-25 Published:2019-12-09

摘要: 为了解金果榄(Tinospora sagittata Gagnep)种子的生理特性和萌发、生长特性,分别用鲜果实和鲜种子进行沙藏处理后,对野生金果榄果实、种子和胚形态结构进行了观察;用含5 mg/L赤霉素的MS培养基培养、沙藏2个月和4个月对金果榄种子进行无菌发芽试验。结果表明,室温(日夜温差>10 ℃)湿润沙藏可打破金果榄种子休眠,促进种子萌发,保持种子活力;赤霉素处理能快速打破种子休眠,15 d后发芽率达到80%以上;金果榄种子经风干后2个月、4个月的发芽率分别为20%和10%,表明金果榄种子不适合干燥贮藏。因此,金果榄的休眠类型主要是由于萌发抑制物存在而导致的生理休眠。

关键词: 金果榄(Tinospora sagittata Gagnep), 种子休眠, 沙藏, 赤霉素, 幼苗生长

Abstract: In order to study the seeds physiological property, germination and seedlings growth characteristics of Tinospora capillipes Gagnep, the morphological structure of fruits, seeds and embryos were observed. Fresh seeds were cultured on MS medium added 5 mg/L gibberellin (GA), other seeds which were preserved in sand for two and four months were cultured on MS medium without plant growth regulator for germination. The results showed that sand storage of fresh fruits and seeds in room(temperature difference between day and night>10 ℃) could break the dormancy of Tinospora capillipes Gagnep, promote the germination, and keep the seed vigor. Gibberellin treatment could break the seed dormancy effectively, and the germination rate was more than 80% after 15 d. The germination rate of the air-dried seeds after 2 months and 4 months were 20% and 10%, respectively. Therefore, the seeds of Tinospora capillipes Gagnep are not suitable for storage after air-dried. In conclusion, seeds of Tinospora capillipes Gagnep have dormant characteristics mainly because of germination inhibitor in endosperm.

Key words: Tinospora capillipes Gagnep, seed dormancy, sand storage, gibberellin, seedlings growth

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