论文部分内容阅读
我省1976年和1979年两次全国性杉木地理种源全分布区试验9年和6年研究结果表明:南岭山地的融水、锦屏、江华、会同、建瓯种源及本省遂川、武宁、黎川、铜鼓等种源具有较高的生产力。据9年材料估计,融水、锦屏等10个优良种源的树高生长量的遗传增益为15.36-34.65%,胸径为17.63-39.07%,材积为27.4-60.74%。该研究给本省各生态区分别提出了适宜推广的优良种源(区),从而为当地建立杉木速生丰产林基地和商品材基地、进一步开展杉木遗传改良工作提供了物质基础和理论依据。
The results of 9 years and 6 years of the experiment on the distribution of two species of national provenance provenance in 1976 and 1979 in our province showed that the sources of melt water, Jinping, Jianghua, Huitong, Jian’ou and the Suichuan Wuning, Lichuan, Tonggu and other provenances have high productivity. According to 9 years of material estimation, the genetic gain of height growth of 10 elite provenances including Rongshui and Jinping is 15.36-34.65%, the DBH is 17.63-39.07% and the volume is 27.4-60.74%. The research proposed different good provenances (districts) for ecological areas in our province, which provided the material foundation and theoretical basis for the establishment of fast-growing and high-yield fir base and commodity timber base in the local area, and further carrying out genetic improvement of Chinese fir.