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山东省是全国栗树主要生产基地之一,常年产栗700—1,000万斤。除胶东半岛的文登、荣城等县有少量朝鲜栗外,其余都为板栗。省内成龄树以往除莱西县有小片嫁接树外,均为实生树。从栗树资源调查和生产实践中观察到,栗树自然杂交变异性大,长期实生繁殖,种性混杂,劣多优少,晚实低产(株产几斤,
Shandong Province is one of the major production bases of chestnut trees in the country, with annual output of 700-1,000 kg of chestnuts. In addition to the Jiaodong Peninsula Wendeng, Rongcheng County, a small amount of North Korea chestnut, the rest are chestnuts. In addition to the old tree in the province except Lacey County small grafted trees, are real trees. From chestnut resources survey and production practice observed, chestnut natural hybrid variability, long-term real-life breeding, mixed species, poor and more excellent less late real low yield (strain produced a few pounds,