大白菜新品种‘连白15’的选育

Breeding of a New Chinese Cabbage Variety‘Lianbai 15’

‘连白15’是以自交不亲和系‘6270-2-1’为母本、‘Cr金-3-2’为父本杂交选育而成的杂交一代品种。该品种生育期77 d左右,外叶颜色绿色,球内叶颜色黄色,株高37.8 cm,株幅55.9 cm。叶球叠抱,球高28.9 cm,球径16.7 cm。单株毛质量3.0 kg,单株净质量2.39 kg,净菜率79.79%。667 m^(2)产量7500 kg以上。高抗霜霉病,抗病毒病、软腐病,田间鉴定和室内接种鉴定抗根肿病,耐抽薹性强,适宜大连地区秋季露地栽培。

‘Lianbai 15’is F1 hybrid of new Chinese cabbage variety,which crossed by two self-incompatible lines‘6270-2-1’and‘Cr-gold-3-2’.The growth period is about 77 days.The outer leaves are green in color and inner leaves are yellow.The plant shape is 37.8 cm in height and 55.9 cm in width.The leaf sphere is overlapped with a height of 28.9 cm and a diameter of 16.7 cm.The net weight of individual plant is 3.0 kg,the single head weight is 2.39 kg,and the ratio of net product is 79.79%.The average yield is over 7500 kg per 667 m2.The hybrid has high resistance to downy mildew,resistance to virus disease and soft rot,especially shows a good resistance to clubroot in both indoor inoculation identification and in field.It is storable and suitable for cultivation in Dalian in autumn.