摘要
油松是我国北方最主要的针叶造林树种,陕西在我国天然油松林面积最大,有4个国家级油松重点林木良种基地,担负良种繁育重要任务。针对陕西省油松良种基地目前存在遗传材料来源广泛,生态环境各异,无性系种子园花期不遇、授粉不足,管理粗放,产量不足和质量下降等问题,提出了油松良种基地精细化管理技术和建议,主要包括土肥水管理技术、树体管理技术、辅助授粉技术、病虫害综合防治技术、激素处理促进结实技术,尽快建立子代测定林、收集储备育种材料。
Pinus tabulaeformis is a major coniferous tree species applied in the north of China for afforestation.Shaanxi province has the largest natural Pinus tabulaeformis forest distributed,with 4 improved variety bases responsible for breeding and propagation.However,there are problems existed with these bases such as genetic resources from a wide range of sources with different ecological conditions,different flowering periods of seed orchard causing inadequate pollination,low quality and quantity of seeds.In light of these issues,this paper introduced the intensive management technology for improved variety base of Pinus tabulaeformis.Scientific fertilization,top cutting and dwarfing,supplementary pollination and hormone treatment are suggested to promote the high yield and fruiting of mother tree of P.tabulaeformis.
作者
廖绍明
刘永红
LIAO Shao-ming;LIU Yong-hong(Houzhenzi Ecological Experimental Forest Farm of Zhouzhi County, Zhouzhi, Shaanxi 710409;College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100)
出处
《陕西林业科技》
2021年第4期123-126,共4页
Shaanxi Forest Science and Technology
基金
周至县厚畛子国有生态实验林场国家落叶松、油松良种基地建设项目。
关键词
油松
良种基地
经营管理
陕西省
Pinus tabulaeformis Carr.
seed orchard
operation and management
