Breeding and Application of Late Japonica CMS Line Jia 74A with Erect Panicle,Long Grain and Fine Grain Quality in Rice
Jia 74A,derived from the cross between BT-type japonica CMS line Jia 60A and Jia 74B,a new stable line with erect panicle,fine grain quality and long grain,is a BT-type early-maturing late japonica CMS line in rice developed by Jiaxing Academy of Agricultural Sciences through successive backcrosses over many generations.It has the characteristics of ideal plant type,erect panicle,long grain,high grain quality and good seed production and multiplication traits.In May 2022,it was registered and released by Zhejiang Provincial Crop Variety Appraisal Committee.The new hybrid combinations Jiayou 8201(Jia 74A/Jiahui 8201)and Jiayou 9370(Jia 74A/Zhehui 9370)were both registered and released for commercial production by the National Crop Variety Appraisal Committee in November 2023.
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