Breeding and Utilization of High-quality Aromatic CMS Line Xinggu A in Rice
Xinggu A was a hybrid of long-grain high-quality maintainer line Taifeng B and strong-flavor high-quality maintainer line Yexiang B.The F1 generation was crossed with Shangu B,and the F3 generation was selected to cross with Shangu A,which had slender grains,high chapiter exposure percentage and good plant shape.After the successive generations of rice blast resistance,rice quality,fertility screening and back-crossing breeding,a high-quality aromatic CMS Line Xinggu A with stable fertility was bred.The sterile line had the characteristics of strong fragrance,strong combining ability,good plant shape and phylliform,strong tillering ability and high heterotic cross seeding rate.The hybrid combination of aromatic rice,Xingguyou 628(Xinggu A×Huihui 628)had good yield and good rice quality.It was technically approved by Fujian Crop Variety Approval Committee in January,2024.
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