去年以来,我们在市跃进农场、青浦五七农科院、嘉定县良种场等单位的支持和共同努力下,加速上海野栽型水稻三系研究,初步获得粳稻三系配套材料。一、不育系材料来源我院于1971年用普通野生稻的红芒野生稻为原始材料,同北方的早粳品种杂交,于1973年育成京引59、农垦四号不育系。在连续六、七代的回交中,表现不育性稳定,其株型、叶型、叶色、籽粒形状和生育期等方面都与保持系相似。在此基础上,又用不同粳、籼品种与不育系测交,转育成一批粳稻及籼稻同源不育系,主要有:京引59A、农垦四号A、沪早451A等,世代为B9F_1～B13F_1,籼型不育型主要有原丰早A、嘉选二 Since last year, with the support and joint efforts of Yuejin Farm, Qingpu 57 Academy of Agricultural Sciences and Jiading County Seed Farm, we accelerated the study on three lines of Shanghai wild-type rice and obtained preliminary materials for three lines of japonica rice. First, the source of sterile material Our hospital in 1971 with common wild rice of Hongmang wild rice as the raw material, hybrid with the early varieties of northern japonica, bred in 1973, Beijing cited 59, Nong Ken No. 4 sterile line. In six or seven generations of backcrosses, the performance of sterile stability, its plant type, leaf type, leaf color, grain shape and growth period are similar with the maintenance line. On the basis of this, the japonica and indica varieties and CMS lines were crossed with different japonica, indica varieties and sterile lines and transferred into a series of japonica and indica homologous male sterile lines mainly including Jingyou 59A, Nongken No.4 A and Shanghai Morning 451A. For B9F_1 ~ B13F_1, indica type of infertility mainly Haramatsu early A, Jiaxuan two