苹果栽培生产中，夏季高温多雨诱导产生大量生长根，引起秋梢的二次生长，产生冗余消耗。针对我国雨热同季的气候特点，大田条件下，探索稳产树与旺长树生长根的发生动态特征，解析稳产树与旺长树夏季生长根的周年补偿规律，为夏季根系管理制度的革新提供理论依据。同时，利用根系研究系统，深入解析稳产树与旺长树在高温多雨及适宜气候下的生长根动态差异、结构演化及根系营养变化，结合转录组、蛋白组和代谢组等多组学技术，探索高温多雨及适宜气候对苹果春梢停长后生长根的分子代谢网络影响，解析高温多雨调控生长根旺长的分子机制；此外，利用生物信息学手段，建立高温多雨调控苹果夏季生长根发育动态的分子模型及多组学数据库，为根系功能组学的发展奠定重要的理论基础，对苹果土壤管理制度具有重要理论指导意义。

In apple cultivation, the large amounts of extensive roots caused by hot and rainy weather in summer can result in the second growth of autumn shoot and redundant consume. According to the climate characteristics of China's hot rainy season, the purpose of this research is to provide theoretical basis for innovation of root management in summer by investigating the occurrence dynamics and the growth difference of extensive roots of stable production trees and fast growing trees; to analyze the dynamic difference, structure evolution and root nutrition changes of stable production trees and fast growing trees by using root research system; to investigate the effects of hot rainy season and suitable climate on molecular metabolic network of extensive roots when spring shoots stop growing; to study the molecular mechanism of abundant growth of extensive roots regulated by hot rainy season through using multi-omics technology (transcriptomics, proteomics and metabolomics), as well as to build molecular model of development of dynamics of extensive roots regulated by temperature and humidity and to establish omics database which are of the important basis theoretically for development of root omocs and guidance for apple soil management reforms.