杜鹃花(Rhododendron)是世界著名的观赏花卉,因其重要的观赏价值、经济价值而备受关注.基于Web of Science核心合集和CNKI数据库,利用CiteSpace软件对近二十年国内外杜鹃花的研究现状进行分析,总结了杜鹃花研究领域的前沿热点及发展趋势.研究发现:(1)近二十年关于杜鹃花的研究型论文以英文为主,且英文文献数量呈现快速增加的趋势,而中文论文在前十年快速增加,近十年呈波动趋势;(2)美国是英文文献中贡献最多的国家,中国科学院(Chinese Academy of Sciences)是中英文发文量最高的机构,陈训和Peter W.Fritsch分别是发表中文和英文文献最多的学者;(3)中、英文文献早期在杜鹃花研究领域的关注点有所不同,中文文献主要集中在杜鹃花品种培育、扦插栽培和抗性研究,英文文献则更加关注杜鹃花品种培育从分子层面上的实施,以及杜鹃花野外资源的保护.近年来,气候变化下杜鹃花的响应及品种培育已成为研究热点,建议在今后的工作中加强对全球变化下杜鹃花的响应以及抗性育种的研究.
Research Status and Hotspots of Rhododendron Based on Bibliometric Analysis
Rhododendron is a world-renowned ornamental flower,and has attracted much attention due to its important ornamental and economic value.Based on the core collection of Web of Science and CNKI database,we used CiteSpace software to analyze the current research of Rhododendron at home and abroad in the past two decades,summarizing the cutting-edge hotspots and development trends of it.Our results show that:(1)In the past twenty years,the research papers on Rhododendron are mainly in English,and the number of English research papers on Rhododendron shows a rapid increase,while the number of Chi-nese papers shows a rapid increase in the first decade but a fluctuating trend in the past decade.(2)America contributes the most to the publication of Rhododendron articles,and the Chinese Academy of Sciences publishes the most articles in Chinese and English.Xun Chen and Peter W.Fritsch are the leading core authors in publishing Chinese and English articles on Rhododendron research,respectively.(3)Chinese and English literature have different concerns earlier in the field of Rhododendron.Chinese literature mainly focuses on variety breeding,cutting cultivation and resistance,while English literature pays more attention to the implementation of Rhododendron variety breeding at the molecular level and the protection of Rhododendron wild resources.In recent years,the response and variety breeding of Rhodo-dendron under global climate change have become research hotspots.Based on current progress,we sug-gest that the response and resistance breeding of Rhododendron under global change should be strength-ened in the future work.
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