黄土高原中部沙棘种质资源调查及选优

本文借鉴其它树种选优经验,制定了"黄土高原中部沙棘种质资源调查及选优方案".把选优同种质资源清查工作结合进行.对该区沙棘分布较为集中,且具代表性的靖边县、黄龙县、陇县的沙棘,进行了全面系统的调查分类及选优,提出了适于陕西省沙棘类型划分的方法,并划分出25个沙棘类型,为沙棘开发利用奠定了基础.共选出适于当地繁殖栽培的优良单株30个.其中有29个丰产优良单株,1个大果型优良单株.

Investigation and Optimization of Seabuckthorn Seed Resources in the Middle Loess Plateau

This paper uses the experiences of other tree species for optimization,and works out "Programme of investigation and optimization on seabuckthorn seed resources in the middle Loess Plateau".We conducted the combination of optimization and seed resources uncovering at once.We selected the Jingbian County,Huanglong County and Longxian County,where seabuckthorn grows more concentrated and are representative ones.We made overall systematic investigation,classification and optimization.We provided a classification method which fits seabuckthorn in Shaanxi Province and worked out 25 different seabuckthorn kinds and established a foundation for seabuckthorn development and utilization.We chose totally 30 good samples fit to local conditions for breeding among them,among them 29 are qualified fruits for high yield and one for big qualified fruit.