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引言柑桔果树主要有金柑属(Fortunella)、枳属(Poncirus)和柑桔属(Citrus)植物。柑桔属经济价值最高,种类、品种很多,在世界热带、亚热带地区广为栽培,也是柑桔类果树中研究得最为广泛而深刻的植物。枳属为单种属,品种有限,果实不能食用,但为柑桔的重要砧木,因此世界各地栽培也多,深受重视。金柑属植物虽然可供果树栽培,但果实较小,除原产地以外世界其他地区了解得不多,较少栽培。金柑属自然分布区
Introduction Citrus fruits are mainly composed of Fortunella, Poncirus and Citrus plants. Citrus is the highest economic value, variety, variety, widely cultivated in the tropical and subtropical regions of the world, but also the most widely studied and profound citrus fruit tree. Citrus aura is a single genus, limited variety, the fruit can not be eaten, but is an important rootstock of citrus, so many cultivated around the world, by the attention. Although the kumiss is available for fruit tree cultivation, the fruit is smaller and less well known and cultivated than the rest of the world, except where it originated. Kombu is a natural distribution area