Abstract:

To comprehensively understand the research dynamics in the field of rice salt stress in China, this paper, based on bibliometrics and with ‘rice’ and ‘salt stress’ as the keywords, searched the high-quality papers on rice salt stress in the database of the China National Knowledge Network (CNKI) from 1990 to 2020, and retrieved a total of 442 journal papers. The existing research achievements on salt stress in rice in China were analyzed from the aspects of the number of published papers, authors, scientific research institutions, citation frequency, fisheye diagram and emergence analysis. The results show that rice salt stress research has shown a trend of growth and is currently in the stage of explosive increase. Moreover, root growth, metal ion balance research, gene editing and expression are all hotspots in the field. The coastal and saline-alkali land areas have the most research on salt stress, and the research is more in-depth, and the superposition of different abiotic stresses is also a hot research direction. In the future, in addition to bud and seedling stage, the research on salt tolerance of rice should further focus on the goal of yield. Meanwhile, it is necessary to strengthen the cooperation between research teams and institutions, and promote the transformation of achievements and technology extension, so as to better serve agriculture, increase grain yield and ensure food security in China.

Key words: rice, salt stress, bibliometrics, VOSviewer, CiteSpace