解放以来,在毛主席革命路线指引和社会主义建设蓬勃发展的鼓舞下,我国的水稻育种是有显著成绩的,杂交水稻在英明领袖华主席的亲切关怀下近年来也取得了可喜的成就。但如何把水稻单产提高到一个新的水平,仍然是育种工作者面临的一大课题。下边我们想就这一问题提出一点看法请大家讨论、批评。 (一) 云南水稻生产水平的回顾解放前云南滇中一带的水稻生产水平,大约粳稻一般四百斤左右,秈稻高一些,可达五、六百斤;高产的分别各高一二百斤。解放后,经过土改,水稻产量迅速提高。合作化后,随着化肥的施用,栽培技术的改进,本省粳稻高产的达到了七、八百斤,秈稻高的接近千斤。而原地方种的株 Since the liberation, under the guidance of Chairman Mao’s revolutionary line and the vigorous development of socialist construction, there have been remarkable achievements in rice breeding in our country. Hybrid rice has also made gratifying achievements in recent years with the gracious care of Chairman Bawang, the wise leader. However, how to raise paddy yield to a new level is still a major issue for breeding workers. Next, we would like to make some comments on this issue for discussion and criticism. (I) Review of Rice Production in Yunnan Before the liberation, the level of rice production in the middle Yunnan area was about four hundred kilograms of japonica rice and some five or six hundred kilograms of indica rice. The output of high yield was one and two hundred kilos each. After the liberation, after land reform, the output of rice increased rapidly. After the cooperation, with the application of fertilizers and cultivation techniques, the province’s high-yielding japonica rice reached seven or eight kilos, and the indica rice was near the top of its weight. The original local species strains