抗稻瘟病水稻恢复系绵恢919的选育

Breeding of Blast-resistant Restorer Line Mianhui 919 in Rice

以抗稻瘟病恢复系成恢178为母本、高配合力恢复系乐恢188为父本杂交,经过多年系谱选择,育成了抗稻瘟病新恢复系绵恢919。该恢复系具有株叶形态好、恢复力强、配合力高、抗稻瘟病的特点,与川317A所配杂交组合川优7919于2018年通过四川省农作物品种审定委员会审定。

Derived from the cross of Chenghui 178(a blast-resistant restorer line)/Lehui 188(a restorer line with high combining ability),Mianhui 919 is a new blast-resistant restorer line developed through many years of pedigree selection in rice.It is characteristic of good plant type,strong restoring ability,high combining ability and good blast resistance.Chuanyou 7919,derived from Chuan 317A and Mianhui 919,was registered and released by Sichuan Provincial Crop Variety Appraisal Committee in 2018.