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Analysis of 32,574 papers published by USA, UK, China, India and Brazil in the field of 'plant genetics and breeding' research during 2005-2009 indicates that USA produced the highest number of publications followed by China. The impact of research output as seen by the values of different impact indicators is highest for UK. The sub-domains of emphasis of research shifted in 2009 as compared to 2005 for all countries. India contributed about 9 percent to the world publication output. Indian output formed a part of the mainstream science as seen by the pattern of publication and citation of the research output. The total Indian output originated from 1,806 institutions located in different parts of the country. About 41 percent of the total Indian output was concentrated among 23 institutions. Among the institutions, international institutes located in India had the highest impact. The proportion of single authored papers has decreased considerably and the share of internationally co-authored papers has remained almost steady during the period of study [ABSTRACT FROM AUTHOR]

Examines the R&D efforts in the field of forest mycology (study of fungi) with a primary focus on the global trends of publication output and its citation impact for the papers published during 1987-2008. The results indicate that number of publications have increased significantly especially during 2004 -2008. A total of 3313 publications scattered over 619 journal titles originating from 50 countries and 839 institutions indicates that USA tops the list in the publication output, while Sweden does in the citation impact. China leads in terms of highest rate of annual growth of published papers. [ABSTRACT FROM AUTHOR]