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The variety of hybrid rice,Tianyou 2075 was developed between crossing the high quality 3-line male sterile Tianfeng A and the restorer line,Fuhui 2075.The hybrid rice variety,Tianyou 2075 exhibited some good characteristics including uniformity population,good color exchange during mycelium ripening,high-yield,stable yiled,ecological adaptabilities and high seed yield.The variety was certified by National Crop Variety Evaluation Committe in 2013.The restore line,Fuhui 2075 was bred by crossing Zhi 8as the female parent with Hang 1in Sanya,Hainan in the Spring,2003.The F1 derived from the combination was crossed with the male parent,Shuhui527 in the Fall,2003.Then its progenies were repeatedly cultivated in the rice-blast-infected filed to ensure cultivar stability.The bred procedures and some characteristics of the variety Tianyou 2075 were described in the paper.
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