论文部分内容阅读
根据攻关合同,要求按稻作生态区选出一批高产(比同熟期推广良种增产5—10%左右)、抗病虫性强(重点是抗稻瘟病、白叶枯病和褐稻虱)、抗逆性强(重点是低温、个别地区还有旱害)、优质(重点是碾米品质)的早、中、晚稻新品种,并注意选育适宜于中、低产地区的高产、稳产新品种。经过严格验收,达到攻关目标的水稻新品种有62个,已园满完成了攻关任务,而且多数品种开始应用于生产。“六五”水稻育种攻关主要有以下几方面的突破和提高:
According to the research contract, it is required to select a batch of high-yielding rice crops (about 5-10% more than the same-season popularized varieties) according to the paddy ecological zone, strong resistance to pests and diseases (focusing on blast resistance, bacterial leaf blight and brown planthopper ), High stress resistance (low temperature, drought in some areas) and new varieties of early, middle and late rice with high quality (focusing on the quality of rice milling). Attention should also be paid to breeding high and stable yield suitable for medium and low yielding areas New varieties. After strict acceptance, the number of new rice varieties that have reached the target of research and development has reached 62, and the task of tackling key problems has been completed. Most varieties have been put into production. “Six Five” rice breeding research breakthroughs in the following areas and improve: