(1) Biological basis and regulatory mechanism of fruit quality formation and maintenance, including the regulatory network of quality formation and maintenance, the functional analysis of key genes, the regulatory mechanisms of key metabolic processes, and the key regulatory modes (such as transcriptional regulation, post-translational modification, epigenetic regulation).

(2) Biological basis and regulatory mechanism of fruit in response to external environment, including the occurrence mechanism and regulation mechanism of cold injury, browning and lignification of fruits.

(3) Research and development of green preservation technology. To study the loss reduction and efficiency enhancement technologies of horticultural products based on new biological and physical materials