Animal Husbandry and Feed Science ›› 2020, Vol. 41 ›› Issue (6): 72-77.doi: 10.12160/j.issn.1672-5190.2020.06.014

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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

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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