中文摘要：

连续3年以北方板栗品种＂燕山红栗＂和＂燕龙＂为父本,以南方板栗品种＂云富＂、＂云良＂、＂云早＂、＂永丰1号＂为母本进行授粉,测定了不同授粉组合板栗的结苞率、空苞率、出籽率、球苞直径和坚果重量等指标,以期为改善板栗坚果品质和提高产量提供参考。结果表明：不同授粉组合对板栗结苞率、空苞率的影响较小;球苞的大小与母本的自身特性以及球苞内坚果个数相关;利用坚果大的品种花粉授粉比利用坚果小的品种花粉授粉所结的坚果要大,且坚果的大小也与球苞内坚果的个数相关。

英文摘要：

Taking chestnut varieties of ‘Yanlong＇and ‘Yanshan Hongli＇from northern China as male parents and‘Yunfu＇,‘Yunliang＇,‘Yunzao＇and‘Yongfeng No.1＇from Yunnan as female parents,over a three-year-old period,an artificial pollination hybridization experiment was carried out,the major parameters such as bur-setting rate,empty-bur rate,seed rate,cupula diameter,the weight of nuts and so on were studied.The results showed that different pollination combination had no significance impact on bur-setting rate and empty-bur rate of Chinese chestnut.The size of cupula had business with female parent＇s own characteristics and the number of nuts in cupula.The weight of the male nut and the number of nuts in cupula could effect the average weight of the fruits.