【摘要】 以云南松优良群体为选择基础 ,以优株为选择对象 ,在评出的优良产地内选择了石屏牛达、龙朋 ,双柏鄂嘉、雨龙 ,云龙天池、大栗树 ,禄丰樟木箐等天然优良林分 ,在林分内按优树标准开展了优良个体选择。共选择表型较好的优株 2 0 5株 ,分株开展了多点年度间的表型测定。以 3～ 4年生优树子代的生长量及优树的纹理通直度、木材密度 ,松脂含量作为选择性状 ,经对各性状的遗传力和权重值等进行综合选择 ,评选出了牛达 39号、 13号、 2 8号、 18号、 3号 ,龙朋 6号、 5号、 2号 ,双柏鄂嘉 3号、 17号 ,双柏雨龙 12号 ,腾冲古永 9号 ,贡山 8号 ,云龙 1号等 32个符合单板类人造板材良种要求的优良单株。它们的树高增长率 79 0 %～ 13 3% ,实际增益 30 6 3% ,遗传增益 16 85 % ,其中有 2 1个家系的木材密度提高了 5 5 9% ,松脂含量为对照的 82 4% ,树干通直度达 97 6 %。评选出的这些优株已进行了保存和利用。更多还原

【Abstract】 Some superior stands of Pinus yunnanensis,namely Niuda and Longpeng of Shiping, Ejia and Yulong of Shuangbai, Tianchi and Dalishu of Yunlong, Zhangmuqing of Lufeng were selected from the chosen superior provenances Two hundred and five superior trees were selected from these superior stands to receive phenotype test Using the growth increment of 3 to 4 years old progeny, the grain, wood density and resin content of superior tree as the selective characters, comprehensive selection and appraisal were carried out considering the hereditability and weight of each characters Thirty two superior individuals were selected out and appraised to be with the quality of elite breed of Pinus yunnanensis for the production of wood base panel They were No 39, No 13, No 28, No 18 and No 3 of Niuda,No 6, No 5, No 2 of Longpeng, No 3 and No 17 of Ejia, No 12 of Yulong, No 9 of Guyong, No 8 of Gongshan, No 1 of Yunlong The tree height of these superior individuals increased by 13 3%～79 0%, the actual gain and genetic gain were 30 63% and 16 85% respectively The wood density of twenty one individuals increased by 5 59%, the resin content was 82 4% of the control, and straightness of stem attained 97 6% These superior individuals selected have been conserved and utilized更多还原