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Acta Prataculturae Sinica ›› 2023, Vol. 32 ›› Issue (10): 200-225.DOI: 10.11686/cyxb2023007

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Research progress on vigor estimation for forage seeds

Qi-bo TAO1(), Xi-hu QIE1(), Qian ZHANG1, Yu-xuan GAO1, Ya-qi ZHANG1, Rui-zhen ZHANG2, Xiao-fei CHEN1, Tian-xiu NIU1, Xiao-tong SUN2, Yu-ting NIE1, Ya-ru LIU1, Jia-qi HU1, Shang-zhi ZHONG1, Juan SUN1()   

  1. 1.Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta,Qingdao Key Laboratory of Specialty Plant Germplasm Innovation and Utilization in Saline Soils of Coastal Beach,Key Laboratory of Biohazard Monitoring and Green Prevention and Control for Artificial Grassland,Ministry of Agriculture and Rural Affairs,College of Grassland Science,Qingdao Agricultural University,Qingdao 266109,China
    2.College of Animal Science and Technology,Qingdao Agricultural University,Qingdao 266109,China
  • Received:2023-01-05 Revised:2023-03-09 Online:2023-10-20 Published:2023-07-26
  • Contact: Juan SUN

Abstract:

High-quality forage seeds are fundamental materials for grass-husbandry industry development and ecological restoration in China. Seed vigor is an important aspect of evaluate seed quality. The efficient vigor estimation of forage seeds is of great importance for selection of high-quality seed lots for cultivated grassland establishment and improvement of natural grassland, and is therefore critical to ensuring food and ecological security. Numerous studies on diverse forage seed vigor estimation methods and their ability to predict field performance have been carried out and published. In this study, the concepts and methodologies for forage seed vigor estimation are summarized, with particular emphasis on the estimation principles and their application in forage seed vigor estimation of some of the more commonly used methods. Coverage of this review includes forage seed physical properties, germination and seedling growth characteristics, stress testing, physiological and biochemical indicators, and advanced technologies. Future prospects in this field are also identified and discussed, to provide necessary direction for the improvement of future research.

Key words: electrical conductivity, vigor estimation, forage seed, radicle emergence, seed ageing, seed germination