关键词: 杂交稻, 优质, 高产, 高效

Abstract: Early 1990s, the author of this article took "developing good-quality hybrid-rice and promoting three-high agriculture to go up new stage" and "good-quality is the inevitable coures of developing rice" as topics to discuss the necessity of developing hybrid-rice. In recent 20 years on one hand, with the continuing advance of national economy, the people's living standard has obviously been raised, and improving the quality of rice has become an urgent requirement; on the other hand, China is a country which, with respect to land, has large population and relatively short resources of fresh water. What is more, this kind of contradiction will be more aggravating in the future. In order to ensure the safeties of food and ceonomy in the 21th contury, the Central Committee of the Party made the policy of high-yield, good-quality and high effect agriculture. In the last 10 years, many breeding units have cultured a lot of sterile lines and good qaulity rice combinations, not only is the yield of these new combinations higher than that of Shanyou 63 but also the quality of rice of most of them is up to the second standard pubished by the Department of Agriculture, and a small number of them is up to the first standard. These facts indicate that developing good-quality hybird-rice is not only necessary but also practical.

Key words: HYBRID-RICE, GOOD-QUALITY, HIGH-YIELD, HIGH-EFFECT