番石榴为桃金娘科,原野生于热带美洲。现已广泛栽植于热带和亚热带地区。通常作为庭园果树栽种。果实可鲜食,或制成罐头,主要用于酿制果子冻和果汁。所含维生素C相当于鲜橙的2—5倍。植物学和繁殖树形不一,树高3—10米,茎小,树皮上有鳞片,分枝低。在果园中种植需修枝整形。小枝条的横切面呈方 Guava is Myrtaceae, the original wild in the tropical Americas. Now widely planted in the tropical and subtropical regions. It is usually planted as a garden fruit tree. The fruit can be fresh, or canned, mainly used for making jelly and fruit juices. Contains vitamin C equivalent to 2-5 times the orange. Botany and breeding tree, tree height 3-10 meters, small stems, scales on the bark, branches low. Planting in the orchard requires pruning. Small branches of the cross section was square