In order to improve the yield of chestnut in Qianxi County of Hebei Province and select the optimum
pollination combinations, eight excellent chestnut varieties were selected as paternal pollinators, two main
varieties in Qianxi County as maternal parent. Direct sorting method and subordinate function method
were employed to evaluate different pollination combinations based on the investigation of yield and fruit
quality. The results indicated that only Yanshanzaofeng' Qianxi15'and Yanshanzaofeng'
Dabanhong'ranked higher than that of control among pollination combinations with Yashanzaofeng'as
female parent using direct sorting method. Five pollination combinations ranked higher than that of control
among pollination combinations with Dabanhong'as female parent. The five pollination combinations
were Dabanhong ' Qianxi14 ', Dabanhong ' Zunyu ', Dabanhong ' Qianxi15 ',
Dabanhong'Yanlong'and Dabanhong'Yanshanzaofeng', respectively. Using subordinate
function method, Yanshanzaofeng ' Qianxi15 ', Yanshanzaofeng ' Dabanhong 'and
Yanshanzaofeng'Zunyu'all ranked higher than that of control among pollination combinations with
Yashanzaofeng'as female parent. The ranking of pollination combinations with Dabanhong'as female
parent was similar to that of using direct sorting method. Through comprehensive analysis, we can
conclude that Qianxi15'and Dabanhong', are the best pollination varieties for Yanshanzaofeng'.
Qianxi14', Zunyu'and Qianxi15'are the optimum pollination varieties for Dabanhong'.