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由于我国育种工作者的努力,早在1973年就实现水稻三系(不育系、保持系和恢复系)配套工作,并在世界上最先育成具有强优势的籼型杂交水稻,使我国杂交水稻的研究和在生产上的大面积推广均居国际领先地位,为水稻产量的大幅度提高和获取巨大经济效益作出举世瞩目的贡献。据统计,近年来杂交水稻的面积占我国水稻播种面积的26.4％,而产量却占稻谷的32.5％。就1988年而言,种植面积达1.87
Due to the efforts of breeders in our country, supporting the three lines of rice (CMS, maintainer and restorer) has been established as early as 1973, and the world has first developed indica hybrid rice with strong advantages to make China hybrid Rice research and large-scale promotion in production both occupy a leading position in the world and make remarkable contributions to the substantial increase of rice output and huge economic benefits. According to statistics, in recent years, the area of hybrid rice accounts for 26.4% of the sown area of rice in our country, while the output accounts for 32.5% of the total. In 1988, the acreage was 1.87