【摘要】 京福4A是用京福4B(冈46B/枝B)与枝A测交并逐代回交转育而成的籼型水稻三系不育系。该不育系熟期较早、米质较优、穗大秆粗、株型良好、配合力强,不育性稳定,不育株率100%,花粉败育率99.99%,于2004年6月通过福建省技术鉴定。用京福4A配组育成的杂交稻新组合京福4优13于2010年通过江西省品种审定。更多还原

【Abstract】 Jingfu 4A is an indica CMS line in rice developed from the cross of Jingfu 4B(Gang 46B/Zhi B) to Zhi A followed by successive backcrosses.It is characteristic of relatively early maturity and good grain quality,large panicles with thick stems and good plant type,high combining ability and stable complete male sterility with 100% of male sterile plants and 99.99% of pollen sterility.It was technically identified in Fujian Province in June,2004.Jingfu 4 You 13,a new hybrid combination derived from Jingfu 4A and Ganhui 13,was certified and released to commercial production by Jiangxi Provincial Crop Variety Appraisal Committee in 2010.更多还原