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扬辐粳7号A是江苏沿江地区农业科学研究所以徐9201A为母本,扬辐粳7号为父本,通过杂交、连续回交转育而成的BT型粳稻不育系。该不育系抗病性强,米质达国标1级优质稻谷标准,综合性状优良,不育性稳定,开花习性较好,异交结实率较高,配组优势明显,2012年通过江苏省粳稻不育系鉴定。所配组合通优粳1号(扬辐粳7号A/R98)表现高产、优质,2013年通过江苏省品种审定。
Yangfujing 7 A was a BT type japonica CMS line which was cross-crossed by cross and backcrossing with Xu 9201A as the female parent and Yangfujing 7 as the male parent in the Agricultural Science Institute of Yangtze River in Jiangsu Province. The resistance of the CMS was strong, and the quality of the rice was up to the national standard of a high-quality rice standard. The integrated traits were excellent, the sterility was stable, the flowering habits were good, the outcrossing rate was higher, and the group had obvious advantages. In 2012, Identification of Japonica CMS Lines. The combination of Tongyoujing 1 (Yangfujing 7 A / R98) showed high yield and good quality, and passed the examination of varieties in Jiangsu Province in 2013.