关键词: 小麦, 低温逆境, Web of Science, 研究热点, 文献分析

Abstract: Low- temperature stress has become one of the main agrometeorological disasters limiting stable yield，high yield，and high quality of wheat worldwide. To objectively and comprehensively understand the research status and development trend in the field of globalwheat low- temperature stress，based on the relevant documents with ″ wheat″ and ″ low temperature″ as the research theme published in the core database of Web of Science from 2000 to 2020，this paper used CiteSpace visual analysis software to retrieve 475 documents closely related to the theme，analyzed statistically in the respects of document number，countries，author，research institution，research hotspot，etc. The results demonstrate that the annual number of documents issued in the field of wheat low- temperature stress has shown a fluctuating upward trend since 2000；large agricultural countries represented by China，the United States，and Canada are committed to research in this field；Skinner，an American scholar，is the author with the largest number of publications in this field，and Li Xiangnan and Fowler were closely cooperating with other scholars；literature in this field is mostly published in high-quality journals such as Molecular Genetics and Genomics and Annual Review of Plant Biology；the Russian Academy of Sciences is the scientific research institution with the largest number of papers in this field；the cultivation of new wheat varieties with low-temperature tolerance，the study of cold-resistant molecular biology，and the improvement of wheat yield and quality have become the research hotspots in this field.

Key words: wheat, low- temperature stress, Web of Science, research hotspots, literature analysis