论文部分内容阅读
10年生速生材火炬松的 2 8个家系间 ,木材的抗弯弹性模量 (MOE)和抗弯强度 (MOR)分别在 0 .0 0 1显著性水平和 0 .0 1显著性水平下差异显著 .整体上 ,2 8个家系的MOE ,MOR的个体变异大部分大于家系间的变异 ,因此火炬松材质改良在家系基础上进行个体改良效果会更好 .其中 17,37,5 1等 3个家系为抗弯性能较好的优树家系 .2 8个家系的MOE和MOR存在线性相关 ,相关系数为r=0 .5 74.MOE和MOR分别与气干密度达到 0 .0 5和 0 .0 1显著性相关水平
The flexural modulus (MOE) and flexural strength (MOR) of wood from 28 families of 10-year-old fast-growing biomass loblolly pine were significantly different from 0,01 significance levels and 0,01 significance levels respectively Significantly, the variation of MOE and MOR in 28 pedigrees was mostly greater than that among their families, so the improvement of the quality of the Pinus taeda individuals would be better for individual improvement based on pedigree, among which, 17, 37, 51, The results showed that there was a linear correlation between MOE and MOR in 28 pedigrees with a correlation coefficient of r = 0.55 74.MOE and MOR were respectively related to air-dry densities of 0 .05 and 0 .0 1 Significantly related levels