粮饲青贮兼用型杂交玉米新品种渝单七号的选育

Breeding of a new dual-purpose grain and silage hybrid maize variety Yudan No.7

渝单七号(渝9501)系重庆市农业科学研究所以自选系268为母本,外引系87 1为父本杂交组配选育而成的粮饲青贮兼用型杂交玉米新品种。经多年试验表明:该品种具有籽粒高产、抗病性强、活秆成熟、适宜青贮、粮饲多用等突出优点。其籽粒品质达普通玉米、饲料玉米国家1级和食用玉米国家2级标准。该品种适宜西南地区及我国类似生态区推广种植。

The dualpurpose grain and silage maize variety Yudan No.7 was bred by Chongqing Institute of Agricultural Science from the cross of selfbred line 268(female) with selfbred line 871(male).According to the variety test,regional test,production test,resistance identification and quality analysis,Yudan No.7 had the characteristics of high and stable seed yield,better resistance,vivid and high quality stalk.It could be planted not only as cereal but also as fodder crop.Its high quality grain was up to the first of state standards of common and feeding maize,and up to the second of state standards of edible maize.It was suitable to be planted in southwest China and similar ecotype.