板栗是木本粮食植物,又是果材两用树种。其果实营养丰富,含有较高的淀粉、蛋白质等,是我国主要的出口商品之一;木材坚硬,耐水防腐性能好,又是建筑工业上的主要原料。我省板栗面积大,分布广,而且有悠久的栽培历史和经验。但由于病虫的危害,单位面积产量低。七十年代初我省从外地引进一批良种,采用高接换种的方法,当年结果,单株产 Chestnut is a woody food plants, but also dual-purpose tree species. Its fruit is rich in nutrition and contains high starch, protein and so on. It is one of the main export commodities in China. It is hardwood, has good water and corrosion resistance, and is also the main raw material in the construction industry. Chestnut area in our province, widely distributed, but also has a long history of cultivation and experience. However, due to the hazards of pests and diseases, the yield per unit area is low. In the early seventies, our province imported a batch of good seeds from the field, adopting the method of high exchange of seeds, the result of that year,