一、我省文冠果栽培历史、天然分布及引种情况: 文冠果(Xanthoceras Sorbifolia Bange)又名木瓜、龙瓜、野核桃等,是我国北方优良木本油料树种,在我省栽培历史悠久。灵台县新开公社寨坡大队疙瘩庙内的一株文冠果树高达7.1米、胸径30厘米,树龄约600年左右(封三照片五);中台公社胡家店大队狼尾沟并生的两株,两株并生的文冠果大树,一株高达10米,胸径34.5厘米,一株高7米多,胸径42厘米,树龄百年以上(封三照片二)。清水县白驼公社唐城大队 First, the history of our province Xuanhuan fruit cultivation, the natural distribution and introduction: Xanthoceras Sorbifolia Bange (also known as papaya, dragon melon, wild walnut, etc.), is an excellent woody oil species in northern China, has a long history of cultivation in our province . Lingtai County, a newly opened commune Walled slope brigade pigeon Temple within a plant of up to 7.1 meters of fruit trees, diameter 30 cm, about 600 years old (closed three photos five); Two trees, two strains of Xiongguan tree, a plant up to 10 meters, diameter 34.5 cm, a plant height of 7 meters, diameter 42 cm, age more than a century (cover three photos two). Qingshui white camel commune Tangcheng brigade