姜黄属花卉新品种‘紫红郁金’

A New Curcuma Cultivar‘Zihong’

姜黄属花卉新品种‘紫红郁金’是从以‘紫嫣郁金’(Curcumainodora‘Ziyan’)为母本,‘红火炬郁金’(C.‘RedTorch’)为父本的人工授粉杂交后代中选育出的。生长势强,成熟植株平均株高75.5 cm。叶片长椭圆形,最长叶平均长80.0 cm,宽12.0 cm。穗状花序,顶生,花枝长53.0 cm,具阔卵形苞片48.0枚。苞片平均长4.2 cm,宽3.2 cm,上部苞片深紫红色,下部苞片浅绿色、先端紫色。小花着生于苞片腋部,乳白色,唇瓣中央黄色。花期6—11月,地栽单花序观赏期约30 d,切花瓶插寿命约15 d。适宜广东省南部地区露地种植。

‘Zihong’is a new Curcuma cultivar developed by crossing two excellent strains of female parent C.Inodora‘Ziyan’and male parent C.‘Red Torch’.This cultivar is characterized by strong growth vigor.The average height of mature plants is 75.5 cm,and the longest leaf is 80.0 cm in length and 12.0 cm in width.The terminal spike inflorescence is 53.0 cm long,with 48.0 broad ovate bracts.The average length of bracts is 4.2 cm,the average width is 3.2 cm.The upper bracts are dark purplish red,the lower bracts are light green with purple apex.Florets born in axils of bracts are milky white,and the center of labellum are yellow.It flowers from June to November,ornamental period of single inflorescence in field is about 30 d,life of cut vase is about 15 d.‘Zihong’is suitable for planting in the open field in southern Guangdong Province.