关键词: 种质资源, 生物多样性, 考察收集, 保护利用

Abstract:

Today one in eight species of plants faces extinction. The loss of plant species is fatal to biodiver-sity. Some developed countries, such as the USA, the former USSR and Japan, etc. , have understood the importance of germplasm resources since the beginning of this century. Through long-term and assiduoue collection, they now possess much of the world's germplasm resources. Though Chinese scientists started germplasm collection much later, they have made signifuanr achievements. Since the liberation of China, 350,000 accessions of germplasm resources of many kinds of crops from all over the country have been a-massed through public collection, supplement collection and comprehensive exploration of main crops in key regions. However, some mountainous areas in midwest China and some rural areas populated by minority nationalities have potentially useful resources that urgently need collection, evaluation and utilization. This paper provided some important suggestions for short-term obj...更多

Key words:
Germplasm resources Exploration, and collection Biodiversity Conservation andUtilization