摘要:
2003年春季在海南用蜀恢527做母本, 与R2 (航86/台农67//多系1号) 杂交, 后代在上杭茶地自然稻瘟病区筛选, 对所获得的优良单株连续多年在沙县和海南反复加代定向培育, 选育出恢复系福恢2189。利用强恢复系福恢2189与三系不育系川香29A配组, 选育出三系中籼杂交水稻新品种川优2189。该品种具有穗大粒多, 熟期转色好, 丰产性好, 制种产量高等特点, 2012年通过福建省品种审定委员会审定。
Abstract:
‘Chuanyou 2189'was developed by crossing the 3-line male sterile‘Chuanxiang 29A'and the restorer line‘Fuhui 2189'.‘Fuhui 2189'was a result of crossing‘Shuhui 527'as the female parent with R2in Hainan in the spring of 2003.Its progeny were planted in the rice-blast-infected field at Shanghang for cultivar-screening.The selected plant lines were repeatedly cultivated for several generations in Shaxian and Hainan to assure cultivar stability.The finally obtained‘Chuanyou 2189'exhibited the desirable characteristics of large panicle, numerous grains per panicle, color change during mycelium ripening, high yield and high seed production.As a result, it has been certified by Fujian Crop Variety Evaluation Committees in 2011.This paper presents the breeding procedures, hybrid characteristics, cultivation and seed production of‘Chuanyou 2189'.
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