早籼807的选育及其栽培技术研究

摘要

A new early-maturing rice variety, Zaoxian 807, bred by pedigree method, was characterized by high yielding and resistance to diseases. In Anhui provincial regional plot tests from 2009 - 2010, its average yield was 7 699.5 kg/hm2 , which was 8. 25% higher than that of check variety, Zhuqing. In Anhui provincial production trial of 2011, it yielded 6 814. 5 kg/hm2 which was 1. 66% higher over Zhuqing. It was also characterized by moderate resistance to rice blast and bacteria leaf blight, and tolerance to low temperature at seedling stage. Its grain quality met the fourth-third grade of quality rice standard issued by Ministry of Agricultural of China. The whole growth period is about 108 d, the suitable period is from last ten-day of Mar. To first ten-day of Apr..%早籼807是安徽省农业科学院水稻研究所采用系谱选择法育成的高产稳产、抗病能力较强的早籼稻新品种.2年省区试平均产量7699.5 kg/hm2,较对照竹青增产8.25％.1年省生产试验,平均产量6814.5 kg/hm2,较对照竹青增产1.66％.株型较紧凑,茎秆较粗壮；中抗稻瘟病和白叶枯病,中抗-感纹枯病,苗期耐寒能力较强.米质较好,综合指标达四～三级食用稻等级标准.全生育期108 d左右,适宜播期为3月下旬至4月上旬.