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双贵海棠是一种适宜嫁接南方苹果的砧木,属落叶小乔木。成年树一般高3米左右,根系发达,分枝多,节间短,耐瘠薄,抗性好,适应性特别强。野外自然生长,一般7年结果。果实较小,桔红色,味酸甜,种子小。芷江县科协从
Double Begonia is a suitable grafted apple rootstock, is a small tree deciduous. Adult trees generally about 3 meters high, developed roots, branches and more, internodes short, resistant to infertility, resistance, particularly adaptable. The natural growth of the field, the general result of 7 years. Small fruit, orange, sweet and sour, small seeds. Zhijiang Association of Science from