Journal of Northern Agriculture ›› 2019, Vol. 47 ›› Issue (3): 91-97.doi: 10.3969/j.issn.2096-1197.2019.03.17

• Soil and fertilizer·Plant protection • Previous Articles     Next Articles

Research progress on the effects of humic acid on drought tolerance of plants

ZHU Shanshan, LIU Jinghui, LI Yinghao, ZHANG Zhifen, DAI Yunxian   

  1. Collaborative Innovation Center,Inner Mongolia Agricultural University,National Agricultural Research Outstanding Talents and Innovation Team,Hohhot 010019,China
  • Received:2019-04-28 Online:2019-06-20 Published:2019-12-10

Abstract: In the process of plant growth,drought is an important factor restricting growth,development and yield.Humic acid (HA) plays an important role in many biological processes related to plant defense responses and morphological development.In this review,the effects of humic acid on plant morphology,physiology,biochemistry and molecular mechanisms under drought stress are reviewed.The effects of humic acid on the growth and development of plant roots and above ground plant parts under drought stress,and its effects at the plant physiological level on photosynthesis,osmotic regulation,antioxidative metabolism,hormones and mineral nutrition are discussed.The existing problems in the research of humic acid are summarized and the prospects for the application of humic acid in plant drought resistance are examined.

Key words: Humic acid, Drought, Phenotype, Physiology

CLC Number: 

  • S482.9