威优48—2是湖南安江农校科研室近年育成的杂交早稻新组合。原名威20A ×测早2—2。父本系1982年春在海南岛从威优64制种的父本中选择的早熟优良单株,经连续成对测交筛选而成。1985年与V20配组进入鉴定圃。从1985年开始,经过三年品比、试种和较大面积的示范栽培,表现良好,一般 Weiyou 48-2 is a new combination of early morning hybrid rice bred by Hunan Anjiang Agricultural Science Research Institute in recent years. Formerly known Wei 20A × measured early 2-2. The paternal line was a precocious fine line selected from the male parents of Weiyou 64 in Hainan Island in the spring of 1982. In 1985 with the V20 group into the identification nursery. From 1985 onwards, after three years of comparison, trial cultivation and demonstration cultivation of larger area, the performance was good and the general