Biotechnology Bulletin ›› 2023, Vol. 39 ›› Issue (1): 84-94.doi: 10.13560/j.cnki.biotech.bull.1985.2022-0473

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Research Progress in Gibberellin Regulation on Maize Seed Vigor

JIN Yun-qian1,3(), WANG Bin1, GUO Shu-lei2, ZHAO Lin-xi1, HAN Zan-ping1()   

  1. 1. College of Agronomy, Henan University of Science and Technology, Luoyang 471003
    2. Cereal Institute, Henan Academy of Agricultural Science, Zhengzhou 450002
    3. Institute of Cotton Research of Chinese Academy of Agricultural Sciences/State Key Laboratory of Cotton Biology, Anyang 455000
  • Received:2022-04-15 Online:2023-01-26 Published:2023-02-02
  • Contact: HAN Zan-ping E-mail:jyq920422@163.com;hnlyhzp@163.com

Abstract:

Maize is the main crop with the highest total yield and average yield per unit area in China, which plays an important role in guaranteeing national food security. Seed vigor is a key index to measure seed quality and application value. High vigor seed is the basis to ensure high and stable yield of crops. Gibberellin is an important plant growth regulator, which can relieve seed dormancy and promote germination. The application of exogenous gibberellin has been widely used in agricultural production to improve crop yield. At present, researches about the effects of GA on the maize seed vigor are mainly focused on the physiological indicators by applying exogenous GA. However, the molecular mechanism of maize seed vigor regulated by GA needs to be further studied. This review is mainly about the research progress of GA biosynthesis, signal transduction, mechanism of GA and its effect on the seed vigor of maize and other crops, aiming to provide reference for further exploring the regulation mechanism of GA on maize seed vigor and the creation of new maize germplasm with high vigor in maize breeding practice.

Key words: maize, gibberellin, seed vigor, molecular mechanism, regulation