绿美广东生态建设背景下林木育种创新实践与战略思考OA

As the core project of ecological civilization construction in Guangdong Province,the implementation of the Precise Forest Quality Improvement Initiative,Integrated Urban-Rural Green Beauty Enhancement Initiative and Green Corridor Quality Upgrading Initiative under the Green and Beautiful Guangdong Ecological Construction is in urgent need of high-quality forest tree seeds and seedlings for support.Based on the core demands of ecological restoration,industrial integration and technological innovation for Green and Beautiful Guangdong,this paper compares the current development status of forest tree breeding in Guangdong and its gaps at home and abroad from the dimensions of breeding technology system,variety selection direction,and promotion and application of superior varieties.Combined with the global and domestic research progress of technologies including introduction and domestication,cross breeding and genetic engineering breeding,as well as practices in germplasm resource conservation and utilization and multi-generational selective breeding,this paper analyzes the unique characteristics of Guangdong's forest tree breeding in the selection of growth traits,wood quality traits and stress resistance traits.From five aspects,namely,formulation of breeding objectives,construction of breeding populations,genome annotation of major tree species,breakthroughs in forest biological breeding technologies,and consolidation of the leading role of enterprises,it proposes innovative strategies for forest tree breeding adaptive to the tropical and subtropical habitats of South China.The research aims to provide seed industry core support for Green and Beautiful Guangdong ecological construction,and lay a solid foundation for the coordination between local ecological governance policies and the research and development of breeding technologies.