【摘要】 ‘昆明鸟’秋海棠系由大王秋海棠和掌叶秋海棠杂交F1选育而成 ,常有多节短茎 ,叶浅裂、被浅白斑 ,直立性较强 ,抗倒伏 ,抗白粉病 ,具较高的观赏价值。‘康儿’秋海棠由大王秋海棠和长翅秋海棠杂交F1选育而成 ,常有 1～ 3节花茎 ,叶大型、浅裂 ,长势旺盛 ,抗白粉病极强 ,适宜栽培观赏。‘白雪’秋海棠为野外发现的自然杂交新品种 ,通过研究证实其为变色秋海棠和掌叶秋海棠的杂交F1代个体 ,为根茎类秋海棠 ,无地上茎或地上茎不明显 ,叶片中型、被毛、浅裂且密被白色斑点 ,十分美丽 ,对白粉病有较强的抗性。更多还原

【Abstract】 Kunming Bird’was F 1 hybrid from the corss between Begonia rex and B.hemsleyana. It is a rhizomatic herb with erect short stem and beautiful white spots on leaf surface.‘Kang er’was F 1 hybrid from the cross between B.rex and B.longialata, It is a rhizomatic and evergreen herb with large lobed leaves.‘White Snow’was selected from a natural hybrid between B.vesicolor and B.hemsleyana. It is a rhizomatic herb with medium sized lobed leaves.All these three cultivars are resistant to powdery mildew.更多还原