今年七月,我县林木良种科研会议后,在县委统一领导下,组织了选优调查队,在全县范围内开展了以华山松为主的优树普选工作,截至目前为止,已选出华山松优树34株。此项选优工作现仍在进行中。在选优过程中,为了能较为精确地评选出一定数量和质量的华山松优树,尽量避免漏选遗传性能优良的优树,我们选优中采用以优树预选木为中心,10公尺为半径的标准地内的三 In July this year, under the unified leadership of the County Committee of Forest Tree Species Research Conference in our county, a special investigation team was set up and a general tree-selection campaign with Huashan pine dominated throughout the county was conducted. Up to now, Huashan pine tree 34. This excellent work is still underway. In the selection process, in order to be able to more accurately select a certain number and quality of Pinus yunnanensis trees, try to avoid the selection of superior genetic performance of excellent trees, we choose the best selection of superior tree pre-selection of wood as the center, 10 meters Three for the radius of the standard