【摘要】 湖北长日核不育水稻是来源于湖北沔阳县沙湖原种场石明松同志于1973年从晚粳“农垦58”中发现的一个自然不育株。我们于1980年引进研究,结果证明,它是一个受核内一对隐性主基因控制的基因型不育材料,其特点具有育性转换的特性,诱导育性转换的因子是日照长度。不育阶段不育性彻底,有利于直接选配强优势组合,开发利用水稻杂种优势。用于轮回选择,将为我国水稻常规育种开拓新的领域,从而有可能引起杂交水稻和常规育种在优质、高产、多抗等综合目标上实现突破。还可在人工调控育性下,开展光学生理、遗传的研究,发展我国的生物科学。更多还原

【Abstract】 The Hubei long-day Nuclear Male Sterility Rice is a natural mutantwhich was discovered from a "Japonica" variety called Nong-Ken 58 inMianYang County of Hubei province in 1973 by Shi Ming-Song. Beginn-ing from 1980, We studied the relation of sterility to the environmentcondition, the genetic behavior of sterility and its value for actural uti-lization through the test by sowing stages, and light treatment. Resultsproved that the sterility is controlled by a pair of recessive genes witha character that the fertility, can be transformed from sterile to fertileby shortenning the sunshine time. The sterility is complete and stable inthe sterile stage. This Nuclear Male Sterility Rice may be easily used in hybrid vigour,recurrent selection, and population improvement in rice. It also may beused as a material to make research on rice physiology and inheritance. We have developed a new long-day Nuclear Male Sterility Rice bycross method and have got a satisfactory result in heterosis test.更多还原