水稻JW型新质源不育系803A及系列组合的选育与应用

Breeding and Application of JW New Natural Sterile CMS 803A and It's Combinations

不育系803A是利用新发现的JW型新质源不育株做母本,L301B/地谷B的杂交后代做父本,经连续多代回交选择而成。该不育系具有配合力强、开花习性好、品质优良等突出优点,1998、2007年两次通过四川省技术鉴定。利用803A已配组育成了B优827、B优811、B优840、B优838、B优817等杂交水稻新品种,并通过国家或省级审定。

CMS line 803A was developed by the recent discovery of JW new nature source sterile through many continuous generation of backcross with the L301B/Di Gu B hybrid descendant. This CMS line showed high combining ability, favorable flowering habits and fine gain quality. It was certified by the Sichuan Crop Technical Appraisal in 1998 and 2007.The hybrid rice combinations using 803A, such as B You 827, B You 811, B You 840, B You 838 and B You 817, were certified by national or provincial level Crop Variety Appraisal Committee.