高产抗病杂交水稻‘天优673’的选育  

Breeding of Hybrid Rice Tianyou 673 with High Yield and Resistance to Blast

作　　者：杨东[1,2] 王志赋[1,2] 李传国[3] 涂诗航[1,2] 黄达彪 梁世胡[3] 董瑞霞[1,2] 张水金[1,2] 黄庭旭[1,2] 谢华安[1,2] 

机构地区：[1]福建省农业科学院水稻研究所,福州350018 [2]福州国家水稻改良分中心,福州35001 [3]广东省农科院水稻研究所,广州510640 [4]福建农嘉种业股份有限公司,福州350011

出　　处：《中国农学通报》2011年第1期57-62,共6页Chinese Agricultural Science Bulletin

基　　金：国家863计划项目"强优势水稻杂交种的创制与应用"(2009AA101101);福建省属公益类科研院所基本科研专项计划"优质;抗病;高产水稻新品种选育与生态适应性研究"(2009R10026-1);国家科技支撑计划项目"水稻空间环境诱变育种关键技术研究与示范"(2008BAD97B02);农业部"华南稻区超级早;晚稻新品种选育与示范";福建省科技重大专项"粮食作物育种技术研究"(2008NZ02);福建省财政专项-福建省农业科学院科技创新团队建设基金资助(STIF-Y04)

摘　　要：为了引起植物遗传性的变异,快速地选育高产抗病优质新品种,开展了航天育种新方法研究。福建省农业科学院水稻研究所利用空间诱变与杂交育种技术相结合的方法,育成的杂交水稻恢复系‘福恢673’,它具有恢复力强,恢复谱广,配合力好等特点。并用恢复系‘福恢673’与不育系‘天丰A’配组育成了三系杂交水稻新组合‘天优673’,多年试验结果表明,该品种具有丰产性突出、抗稻瘟病、品质较优、生育期适中、制种产量高等优点。在福建省2年区试中,平均产量7.09t/hm2,比对照‘汕优63’增产达5.39%,生产试验平均产量7.56t/hm2,比对照‘汕优63’增产10.29%,福建省区试稻瘟病室内鉴定2年均表现抗(R),2010年3月通过福建省农作物品种审定。空间诱变与杂交育种技术相结合的方法可成功育成高产抗病杂交水稻新品种。In order to cause plant genetic variation and quickly breed varieties to improve the yield, quality and resistance of crop, a new method of space breeding was researched. ‘ Fuhui 673 ’ was a hybrid rice restorer line bred by space mutation and crossbreeding technology in Rice Research of Institute Fujian Academy of Agricultural Sciences. Its characters were strong restorer ability, wide restorer profile and good combining capacity. ‘ Tianyou 673 ’ was developed from the cross of good quality three-line male sterile ‘ Tianfeng A ’ with restorer line ‘ Fuhui 673 ’ . The results of many year experiments showed that ‘ Tianyou 673 ’ had characteristics of high yield, resistance to rice blast, fine grain quality, suitable maturity, wide adaptability and high seed production. The average yield was 7.09 t/hm 2 in two years for Fujian province regional test, 5.39% higher than the check variety Shanyou 63. Its yield was 7.56 t/hm 2 in Fujian province productive regional test,10.29% higher than the check variety Shanyou. It has shown resistance to rice blast in two years for Fujian province regional test of identification of rice blast indoor. It was registered and released for commercial use in Fujian province in March, 2010. The method of space mutation combined with crossbreeding technology could be successful in bringing out new varieties of high yield and resistance to blast.

关 键 词：杂交稻 天优673 航天育种 

分 类 号：S511[农业科学—作物学] S033