畜牧与饲料科学 ›› 2020, Vol. 41 ›› Issue (6): 72-77.doi: 10.12160/j.issn.1672-5190.2020.06.014

• 草业科学 • 上一篇    下一篇

赤霉素浓度对苜蓿种子萌发的影响

聂莹莹, 徐丽君, 辛晓平, 杨桂霞   

  1. 中国农业科学院农业资源与农业区划研究所 呼伦贝尔草原生态系统国家野外科学观测研究站,北京 100081
  • 收稿日期:2020-07-16 出版日期:2020-11-30 发布日期:2020-12-17
  • 通讯作者: 徐丽君(1978—),女,副研究员,博士,主要从事牧草栽培与管理工作。
  • 作者简介:聂莹莹(1990—),女,硕士,主要从事牧草生态与草地管理研究工作。
  • 基金资助:
    国家自然科学基金青年项目(41703081); 国家重点研发计划项目(201YFC0500603,2018YFF0213; 405); 国家牧草产业技术体系(CARS-34); 中央级公益性科研院所基本科研业务费专项资助(G202002-25)

Effects of Different Concentrations of Gibberellin on Seed Germination of Alfalfa

NIE Ying-ying, XU Li-jun, XIN Xiao-ping, YANG Gui-xia   

  1. Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Hulun Buir Grassland Ecosystem Research Station,Beijing 100081,China
  • Received:2020-07-16 Online:2020-11-30 Published:2020-12-17

摘要: 以公农1号紫花苜蓿和呼伦贝尔黄花苜蓿2种苜蓿品种为材料,采用培养皿纸上发芽法,研究不同浓度赤霉素处理(以蒸馏水处理作为对照)对苜蓿种子萌发和幼苗生长的影响。结果表明:公农1号紫花苜蓿种子发芽势、发芽率、发芽指数、发芽速度以及根长随着赤霉素浓度的增加表现出先增加后降低的趋势,赤霉素浓度为50 mg/L时效果最好;呼伦贝尔黄花苜蓿种子发芽势、发芽率、发芽指数、发芽速度以及根长随着赤霉素浓度的增加表现出逐渐增加的趋势,赤霉素浓度为200 mg/L时效果最好。

关键词: 苜蓿, 赤霉素, 种子萌发

Abstract: The effects of gibberellin treatment with different concentrations using distilled water treatment as control were investigated on germination and seedling growth of alfalfa seeds using the paper germination method on Petri dishes. The results showed that the germination potential, germination percentage, germination index, germination speed and root length of Medicago sativa Gongnong NO.1 seeds showed an increasing and then decreasing trend with the elevation of gibberellin concentration, while the 50 mg/L gibberellin treatment showed the most significant effect; the germination potential, germination percentage, germination index, germination speed, and root length of Medicago falcate Hulun Buir seeds showed a gradual increase with increasing gibberellin concentration, with the best results at gibberellin concentration of 200 mg/L.

Key words: alfalfa, gibberellin, seed germination

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