Empty-shell chestnut is one of the main factors affecting the yield of Chinese chestnut. In the recent decade, many researchers from various level have put in a lot of efforts in this field. However, although some positive progress has been made and many reports has been published, the physiological mechanism of forming the empty-shell chestnut is still to be clarified. In order to deal with this problem, in this thesis the variations of endogenous hormone contents in ovary and their physiologica...