籼型水稻光温敏核不育系HA1705S的选育及应用

Breeding and Application of Indica PTGMS Line HA1705S in Rice

HA1705S是安徽华安种业有限责任公司利用T08S与巴西旱稻杂交后,经6 a 10代系谱选择育成的籼型水稻光温敏核不育系,2019年1月通过安徽省农作物品种审定委员会技术鉴定。该不育系育性安全性好,柱头外露率和异交结实率较高,所配组合坚两优58于2021年通过国家农作物品种审定委员会品种审定。

HA1705S, derived from the cross between T08S and Brazilian upland rice, is an indica photo-thermosensitive genic male sterile(PTGMS) line in rice developed through pedigree selection for 10 generations over six years by Anhui Hua’an Seed Industry Co., Ltd.. It was technically identified by Anhui Provincial Crop Variety Appraisal Committee in January 2019. The male sterile line has good safety in fertility and high stigma exsertion rate and outcrossing rate. The hybrid combination Jianliangyou 58(HA1705S/M280) was registered and released by the National Crop Variety Appraisal Committee in 2021.