中国农业科学院科技创新工程;国家现代农业产业技术体系项目CARS-28;辽宁省果树产业技术体系栽培技术研究岗位LNGSCYTX-15-5。This work was supported by CAAS Science and Technology Innovation Project;Modern Agro-industry Technology Research SystemGrant CARS-28;Innovative Program for Fruit Tree Research of Liaoning Province, ChinaGrant LNGSCYTX-15-5