文献类型：期刊文献

英文题名：Ray Traits of Juvenile Wood and Mature Wood: Pinus massonia and Cunninghamia lanceolata

作者：Meng, Qiulu[1,2,3] Fu, Feng[2] Wang, Jie[2,3] He, Tuo[2,3] Jiang, Xiaomei[2,3] Zhang, Yonggang[2,3] Yin, Yafang[2,3] Li, Ning[1] Guo, Juan[2,3]

第一作者：Meng, Qiulu

通信作者：Li, N[1];Guo, J[2];Guo, J[3]|[a0005c616682e38d4137f]郭娟;

机构：[1]Guangxi Univ, Sch Resources Environm & Mat, 100 Daxue East Rd, Nanning 530004, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dongxiaofu, Beijing 100091, Peoples R China;[3]Chinese Acad Forestry, Wood Collect, 1 Dongxiaofu, Beijing 100091, Peoples R China

年份：2021

卷号：12

期号：9

外文期刊名：FORESTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000699509600001)】；

基金：This study was funded by the Nature Science Foundation of China (No. 31890772), and the department of Science and Technology, National Forestry and Grassland Administration (2020132601).

语种：英文

外文关键词：conifer; wood anatomy; juvenile wood; mature wood; ray

摘要：Ray traits affect secondary xylem development and wood properties. Pinus massonia and Cunninghamia lanceolata, commercially important timber species, were chosen to study the differences in wood ray traits of juvenile versus mature wood. Seven ray traits, i.e., percentage of rays, ray spacing, ray number, uniseriate ray height, fusiform ray height, ray parenchyma cell length and ray tracheid length, as well as eight wood axial tissue traits, were investigated quantitatively. Intraspecific variations in ray traits and axial tissue traits between juvenile wood and mature wood were displayed in violin plots. The results showed that anatomical differences between juvenile wood and mature wood were significant for both ray traits and axial tissue traits. Juvenile wood generally possessed the larger percentage of rays, higher ray spacing and ray number, smaller ray height and shorter ray cells than mature wood. A positive correlation was present between the ray parenchyma cell length and ray tracheid length. Negative correlations of the ray number and ray spacing with uniseriate ray height were found. Additionally, the axial tracheid cell wall thickness all had Pearson's correlations with ray spacing, ray number and ray parenchyma cell length.