近20年山东林木品种(良种)选育情况分析
Analysis on Breeding of Forest Varieties (Improved Varieties) in Shandong in Recent 20 Years

林木种质资源是良种选育的基础材料，是遗传多样性和物种多样性的重要基础，是维护国家生态安全的重要战略资源。林木良种选育是林业可持续发展的重要保障，通过选育和推广林木良种，可以保护和利用林木种质资源，维护生物多样性，促进林业科技创新和产业升级，带动相关产业的发展，促进林业经济的繁荣。山东(省本级) 2002年至2023年审、认定的林木品种有42科77属1杂交属109种(包括杂交种、家系)，共计751个；山东省参与国家审、认定品种有22科34属167个品种；合计48科79属964个。通过对审认定林木品种的统计分析，总结了各品种的科属比例分布、年份申请数量、品种选育类别、用途分类比例和国省两级审、认定的树种分布差异等，发现了山东林木品种选育的一些问题，并对此提出一些建议，以此对山东地区的林木品种选育提供参考。
Forest germplasm resources are the basic materials for breeding better varieties, the important basis for genetic diversity and species diversity, and the important strategic resources for maintaining national ecological security. The selection and breeding of high-quality forest seeds is an important guarantee for the sustainable development of forestry. By selecting and promoting high-quality forest seeds, we can protect and utilize forest germplasm resources, maintain biodiversity, promote forestry scientific and technological innovation and industrial upgrading, drive the development of related industries, and promote the prosperity of forestry economy. From 2002 to 2023, a total of 751 forest varieties belonging to 42 Families, 78 Genera and 109 species (including hybrids and families) were certified or pre-certified in Shandong province, and 167 varieties belonging to 34 genera and 22 families were certified with the participation of Shandong Province. A total of 964 varieties belonged to 48 families and 79 genera. Through the statistical analysis of varieties above, the proportion distribution of families and genera, the number of applications in the year, the category of variety breeding, the proportion of utility classification, and the distribution differences of tree species at the national and provincial certified levels were summarized. Some problems in the breeding of forest varieties in Shandong Province were found, and some suggestions were put forward to provide reference for the breeding of forest varieties in Shandong Province.