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鑫A是以岳4B/郴优早1号的F3代与岳4B回交制保后再与金23A测交并连续回交转育而成的水稻三系不育系。该不育系具有农艺性状优良、可恢性好、配合力强、繁殖制种产量高、米质优等特点。鑫A及其所配杂交晚稻组合鑫优9113均于2011年通过湖南省品种审定。
Xin A is Yue 4B / Chen Youzao No. 1 F3 generation and Yue 4B Backcountry security and then measured with the gold 23A and continuous backcross breeding of the three-line male sterile lines. The CMS has the characteristics of excellent agronomic traits, good recoverability, strong combining ability, high yield of breeding seed and good quality of rice. Xin A and its hybrid late rice combination Xin You 9113 were passed in Hunan Province in 2011 species validation.