共查询到19条相似文献,搜索用时 234 毫秒
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籼型优质香稻不育系绵香1A的选育与应用 总被引:1,自引:1,他引:0
绵香1A是四川绵阳市农业科学研究所以印水型不育系优1A为母本、菲改B香/改B的F2代优良单株为父本测交,并经多代择优回交转育而成的籼型香稻不育系。该不育系育性稳定,农艺性状优良,米质优,所配组合产量高。绵香1A于2004年8月通过四川省技术鉴定,配制的组合绵香576(绵香1A辐/恢576)于2006年通过四川省农作物品种审定委员会审定,国豪国香8号(绵香1A/绵恢725)于2008年通过安徽省农作物品种审定委员会审定。 相似文献
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籼型恢复系绵恢2040的选育与应用 总被引:1,自引:0,他引:1
绵恢2040系西南科技大学水稻研究所用万恢228与多系I号杂交选育而成的具有粳稻亲缘的籼型恢复系,农艺、遗传性状稳定,具有恢复力和配合力强,较抗稻瘟病、品质较好、制种花粉量大、易获高产等特点;播抽期较明恢63短5d左右,温光反应特性与明恢63相似。所配组合B优840和C优2040已通过四川省农作物品种审定委员会审定。 相似文献
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HUANG Ting-you WANG Zhi HU Yun-gao SHI Shou-pei PENG Tao CHU Xu-dong SHI Jun XIANG Zu-fen LIU Ding-you 《水稻科学》2008,15(2):153-156
To understand the genetic characteristics of a new photoperiod-sensitive genic male sterile line Mian 9S,some reciprocal crosses were made between Mian 9S and six indica rice materials,Yangdao 6,Luhui 602,Shuihui 527,Mianhui 725,Fuhui 838 and Yixiang 1B.Genetic analysis results suggested that the photoperiod-sensitive genic male sterility (PGMS) of Mian 9S was controlled by a single recessive nuclear gene.Thus,the F2 population derived from the cross of Yangdao 6/Mian 9S was used to map the PGMS gene in Mian 9S.By using SSR markers,the PGMS gene of Mian 9S was mapped on one side of the markers,RM6659 and RM1305,on rice chromosome 4,with the genetic distances of 3.0 cM and 3.5 cM,respectively.The gene was a novel PGMS gene and designated tentatively as pros4.In addition,the application of the pros4 gene was discussed. 相似文献
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