优质中籼稻皖稻77的选育及其应用研究

皖稻 77是安徽省农科院水稻所利用籼粳复合杂交 ,通过系谱选择和混合选择相结合的方法选育而成的中籼稻新品种 ,具有优质、高产、抗病、熟期适中、稳产性好等优点。米质好 ,在 12项米质检测指标中 ,有 7项达部颁优质米一级标准 ,3项达部颁优质米二级标准。 1997～ 1999年省观察组试验、省区试和省生产试验 ,产量 7.77～ 8.10t/hm2 ,比对照扬稻 4号增产 7.6 %～14 .9%。抗逆性强 ,中抗白叶枯病 ,抗稻瘟病 ,纹枯病轻 ,耐旱性较强 ,耐肥抗倒。适宜在我省沿江及其以北地区作一季中稻种植 ,最适播种期为 5月上旬

Development and Utilization of A Medium-maturing Indica Rice Variety of Quality Grain, Wandao 77

A new medium-maturing indica rice variety, Wandao 77, derived from a multiple subspecific cross, was characterized by quality grain, high yield, multiple resistance to diseases, suitable growth duration and wide adaptability. 7 and 3 of its 12 grain quality indexes reached to first and second grades respectively issued by Ministry of Agriculture of China. In Anhui provincial regional plot tests and production trial from 1997～1999, it yielded 7.77～8.10 t/hm 2 which was 7.6%～14.9% higher over the check variety, Yangdao 4. It was also resistant to bacteria blight, blast, tolerant to drought and lodging. It was suitable to be cultivated to the northern region of Yangtze River in Anhui province as a medium-maturing variety of one season.