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50年来 ,河南北部沿黄稻作带的水稻面积由建国之初的几千hm2 ,发展到如今的 10万hm2 ,得益于水稻品种的不断推陈出新 ,而 50年来的每一次品种更新 ,对沿黄农村经济发展都是一次极大促进。系统深入研究河南北部品种选育及其系谱关系 ,结果表明 :国内外品种资源在河南北部水稻育种应用中成效显著 ,同时也提出目前我省水稻品种资源遗传基础单一 ,基因型贫乏。加大对国内外优良稻种资源的引进、改良和利用 ,对沿黄稻作 2 1世纪发展至关重要。
Over the past 50 years, the rice area along the northern rice belt in northern Henan Province has grown from several thousand hm2 at the beginning of the founding of the People’s Republic of China to 100,000 hm2 nowadays. Thanks to the constant introduction of new varieties of rice and the renewal of varieties in the past 50 years, Yellow rural economic development is a great promotion. The results showed that domestic and foreign varieties have achieved remarkable results in rice breeding in the northern part of Henan Province. At the same time, it is also proposed that the rice genetic resources in our province are single and the genotype is poor. Increasing the introduction, improvement and utilization of the fine paddy resources both at home and abroad is of great importance to the development of the paddy rice in the 21st century.