我国水稻育种的研究和实践证明 ,国外稻种资源在我国水稻育种中起着非常重要的作用。在我国水稻育种特别是杂种优势应用中广泛利用了国外品种资源优异性状的恢复系。 2 0世纪 50年代以来 ,各级农业部门非常重视国外稻种资源的引进工作。我省是产粮大省 ,是全国重要的商品粮基地 The research and practice of rice breeding in China prove that foreign rice resources play a very important role in rice breeding in China. In our country rice breeding, especially heterosis application extensive use of foreign varieties of excellent traits restorer. Since the 1950s, the agricultural departments at all levels have attached great importance to the introduction of foreign rice seed resources. Our province is a major grain-producing province and an important commodity grain base nationwide