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中国农学通报 ›› 2018, Vol. 34 ›› Issue (15): 77-84.doi: 10.11924/j.issn.1000-6850.casb18010111

所属专题: 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

几种外源激素对刺槐和红花槐种子萌发的影响

林华忠   

  1. 福建省将乐国有林场
  • 收稿日期:2018-01-20 修回日期:2018-03-11 接受日期:2018-03-23 出版日期:2018-05-29 发布日期:2018-05-29
  • 通讯作者: 林华忠
  • 基金资助:
    国家重点研发项目“刺槐速生建筑材林高效培育技术研究”(2017YFD0600500-03);国家自然科学基金项目“刺槐不去雄条件下实施控制授 粉的花粉竞争与子代选择机制”(31570677);北京林业大学青年教师科学研究中长期项目“刺槐高效育种技术研究”(2015ZCQ-SW-03)。

Several Exogenous Hormones: Effects on Seeds Germination of Robinia pseudoacacia and Robinia hispida

  • Received:2018-01-20 Revised:2018-03-11 Accepted:2018-03-23 Online:2018-05-29 Published:2018-05-29

摘要: 为了探讨几种外源激素处理对刺槐和红花槐种子萌发的影响,本研究以刺槐两个无性系及红花槐种子为供试材料,研究了不同浓度的赤霉素(GA)、细胞分裂素(6-BA)、吲哚丁酸(IBA)、吲哚乙酸(IAA)4种外源激素对刺槐和红花槐种子发芽率、发芽势、起始萌发时间、萌发时间的影响。结果表明:在浓度为10 mg/L-50 mg/L时,随着浓度的增大,GA、6-BA和IBA处理种子的发芽率和发芽势逐渐增大,而IAA处理的种子先增大后减小;当浓度为40 mg/L时,IAA处理的种子发芽率和发芽势均最大。随着激素浓度的升高,3种材料都表现出起始萌发时间缩短,萌发时间延长。红花槐种子发芽率和发芽势均最低,低浓度的激素处理对红花槐种子的萌发效果不明显,有些低浓度激素还会有抑制作用,但高浓度的激素可以明显加快红花槐种子的萌发。

关键词: 五味子, 五味子, 内生细菌, 高通量测序, 蓝藻门

Abstract: To investigate the effects of several exogenous hormones on seed germination of Robinia pseudoacacia andRobinia hispida , the seeds of two clones ofRobinia pseudoacacia andRobinia hispida were used as test materials. The seeds were treated with 10- 50 mg/L GA, 6- BA, IBA and IAA. The seed germination rate, germination potential, initial germination time, and germination time was counted and analyzed. The results showed that with 10- 50 mg/L GA, 6- BA and IBA, the seed germination rate and germination potential increased with the increasing concentrations of exogenous hormones. While with IAA treatment, the germination rate and germination potential increased at first and then decreased, and they all reached a peak by being treated with 40 mg/L IAA. Along with the increasing concentrations, the three materials exhibited the same result: the initial germination time was reduced, and the germination time was prolonged. The seed germination rate and germination potential of Robinia hispida were the lowest. The germination effect of Robinia hispida treated by low concentration of hormones was not significant. High concentrations could significantly accelerate the germination of Robinia hispida . Taken together, certain concentration of exogenous hormones could promote the seed germination of Robinia pseudoacacia and Robinia hispida

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