YANG Yang-ping
National Science Library,Chinese Academy of Sciences,BeijingLV Hui-ying
Institute of Genetic and Development Biology,Chinese Academy of Sciences,BeijingWEI Xun
China Rural Technology Development CenterCHI Pei-juan
National Science Library,Chinese Academy of Sciences,BeijingXIE Hua-ling
National Science Library,Chinese Academy of Sciences,BeijingDONG Yu
National Science Library,Chinese Academy of Sciences,BeijingGE Yi-qiang
China Rural Technology Development CenterYANG Wei-cai
Institute of Genetic and Development Biology,Chinese Academy of Sciences,BeijingNational Science Library,Chinese Academy of Sciences,Beijing,Institute of Genetic and Development Biology,Chinese Academy of Sciences,Beijing,China Rural Technology Development Center,National Science Library,Chinese Academy of Sciences,Beijing,National Science Library,Chinese Academy of Sciences,Beijing,National Science Library,Chinese Academy of Sciences,Beijing,China Rural Technology Development Center,Institute of Genetic and Development Biology,Chinese Academy of Sciences,Beijing
Taking the Web of Science and Derwent Innovation database as the main data sources, a comprehensive analysis of research papers and patents referring to crop breeding in 2017 was performed from many aspects such as the number of documents, the state, institution and research topics based on bibliometrics,. The results showed that China and the United States contributed most to the science and technology output of crop breeding. However, the two countries exhibited different characteristics in terms of R D subjects and patent layouts, therefore, they have their own characteristics.