关键词: 树莓, 树莓, 培养基, 芽分化, 根诱导

Abstract: According to general practice in international literature metrology research, the paper is classified based on region and work unit of the first author. Through the statistic analysis of the authors of the natural science papers in China in 2004, people can know the status quo and equipment condition of scientific research group in China. The contents of this study included their subject distribution, organization distribution, region distribution and authors distribution of high yield and deep influence. The results showed that the author’s subject distribution was not well-proportioned, and the high yield authors. The authors of international papers especially, went into studying chiefly on chemistry, physics and math. The region distribution is asymmetric, 4/5 of the high yield authors were in colleges or universities. The proportion of authors in northwest area, which included 13 provinces, was lower than 20%, whatever international or national papers.