南方农业学报2017，Vol.48Issue(5)：780-784,5.DOI:10.3969/j.issn.2095-1191.2017.05.004
软米型高产优质弱感光组合丰田优981 的选育及应用
Breeding and application of Fengtianyou 981, a high-yield, fine quality and weakly photosensitive indica hybrid rice with soft grain
摘要
Abstract
[Objective]Breeding of weakly photosensitive indica hybrid rice variety with strong heterosis, high yield, fine quality, wide adaptability and stable vegetative growth was conducted to provide selection for varieties upgrading in China. [Method]Fengtian-1A, a indica CMS line with soft grains developed by Rice Research Institute, Guangxi Academy of Agricultural Sciences in 2011 was cross bred with Gui 981, a strong new restoring line. The comprehensive trait perfor-mances of the offspring were investigated in variety comparative test during 2012-2013 in demonstration base of Rice Re-search Institute, Guangxi Academy of Agricultural Sciences. During 2013-2015, it was recommended to join regional screening trial of late-cropping photosensitive rice groups in southern Guangxi for screening trial , regional trial and produc-tion trial in order to evaluate its comprehensive traits. [Result]Fengtianyou 981, has the characteristics of high yield, sta-bility, wide adaptability and fine quality. Its growth duration was 112.0 d, 5 d shorter than that of Boyou 253. The variety was charactered by 168 grains per panicle, seed setting rate 88.6%and 1000-grain weight 25 g, length-width ratio 3.6 and amylose content 13.4%. In variety comparative test conducted by Rice Research Institute, Guangxi Academy of Agricultural Sciences in 2012 and 2013, the average yields of Fengtianyou 981 were 7785.0 and 7687.5 kg/ha respectively, increased by 9.50% and 5.60% compared to control Boyou 253. In regional screening trial, the average yields of Fengtianyou 981 was 8163.0 kg/ha, up 11.48% compared to control Boyou 253 in 2013. The average yields in regional trials in 2014 and 2015 were 7948.5 and 7917.0 kg/ha respectively, increased by 9.17%, and 10.61%compared to control Boyou 253. In pro-ductive trial in 2015, the average yield was 7209.0 kg/ha, which increased by 4.74%compared to control. It was approved by Guangxi Crop Variety Appraisal Committees in 2016(Guishendao 2016009).[Conclusion]Fengtianyou 981 has a promising application prospect, and can be promoted as late-cropping rice in south and middle Guangxi where weakly photosensitive indica hybrid rice is suitable for planting.关键词
丰田优981/软米型/弱感光/选育Key words
Fengtianyou 981/soft grain rice/weakly photosensitive/breeding分类
农业科技引用本文复制引用
戴高兴,邓国富,周维永,梁海福,陈仁天,周萌,陈韦韦..软米型高产优质弱感光组合丰田优981 的选育及应用[J].南方农业学报,2017,48(5):780-784,5.基金项目
国家重点研发计划项目(2016YFD0101102) （2016YFD0101102）
农业部公益性行业科研专项项目(201403002-7) （201403002-7）
广西科学研究与技术开发计划项目(桂科合14125008-2-4) （桂科合14125008-2-4）
国家水稻产业技术体系南宁综合试验站建设项目(CARS-01-72) （CARS-01-72）
