Breeding and Application of High-quality CMS Line Yu 750A with Blast Resistance in Rice
Yu 750A is a new CMS line with high quality and blast resistance,which was derived from crossing G901A to the single plants selected from the cross of Jin 23B/Zhong 9B//D Xiang B by Chongqing Academy of Agricultural Sciences through the successive selection and backcrosses.It has a complete male sterility with 100％of pollen sterility,good outcrossing characteristics,good grain quality and strong rice blast resistance.It was technically identified by Chongqing Crop Variety Appraisal Committee in 2021.Yuyou 703,the hybrid combination derived from Yu 750A,was registered and released in Chongqing in April 2022.
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