悬垂牵牛花新品种‘紫云'的选育

Breeding of new variety of morning glory 'Ziyun'

牵牛花‘紫云'是以白色攀援牵牛花(‘札幌白')中发现的无攀援能力变异单株(‘B-2')为母本、紫色大花裂叶攀援牵牛(‘浜空')做父本杂交,后代连续自交5代,根据选育目标,获得无攀援性的紫色悬垂牵牛花新品种。该品种生长势旺,观赏性状优良,开花数量多,耐热抗旱、抗病性强,观赏期长达3个月以上。

＇Ziyun＇ is a new morning glory variety with characters of purple flower, unable to climb and penduliflory. Its female parent is white flower and unable to climb and is selected from population of variety ＇ Zhahuangbai＇ , with characters of white flower and climing. Its male parent, ＇ Pangkong＇ , is big purple flower, cleft leaves and climbing. After the female parent crossed with male parent, the hybrid fl self-pollinated for 5 generations and selected according to breeding target. The variety is vigorous growth, excellent ornamental characters, large amount of flowers and ornamental period more than 3 months, and also heat and drought resistance, strong resistance to disease.