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以广占63S为光温敏核不育基因供体,与优质抗病保持系天丰B杂交,F3代选优良核不育单株与天丰B回交,经多年系谱选择和测交筛选,育成水稻光温敏核不育系广越S。该不育系具有不育起点温度较低、柱头外露率高、开花习性较好、异交结实率较高、耐寒性强、稻米品质优、中早熟、配合力强、适应性广和综合农艺性状优良等特性,2014年6月通过广东省技术鉴定。
Guangsian 63S was used as a photo-thermo-sensitive genic male sterile gene, crossed with high-quality disease-resistance maintainer Tianfeng B, and selected F3 elite male sterile plants were backcrossed with Tianfeng B. After years of pedigree selection and screen selection , Bred Guangshuang photo-thermo-sensitive genic male sterile line Guangsuosu The male sterile line has low starting temperature of male sterility, high stigma exsertion rate, good flowering habit, high outcrossing rate, strong cold tolerance, good rice quality, early maturity, strong combining ability, wide adaptability and comprehensive agronomy Good traits and other characteristics, in June 2014 through the Guangdong technical appraisal.