植株大小、枝龄和环境共同驱动红松枝性状的变异

于青含, 金光泽, 刘志理

Plant size, branch age and environment factors co-drive variations of branch traits of Pinus koraiensis

YU Qing-Han, JIN Guang-Ze, LIU Zhi-Li

表2 木质密度(WD)、枝氮含量(WN)、木质部面积占比(RXA)、韧皮部面积占比(RPHA)、髓面积占比(RPA)以及树脂道总面积占比(RRC)的统计信息

Table 2 Statistical information of wood density (WD), wood nitrogen content (WN), the xylem area-to-total cross-sectional area ratio (RXA), the phloem area-to-total cross-sectional area ratio (RPHA), the pith area-to-total cross-sectional area ratio (RPA) and the total resin canal area-to-total cross-sectional area ratio (RRC)

性状 Trait 最大值 Maximum 最小值 Minimum 平均值 Mean (标准偏差 SD) 变异系数 Coefficient of variation (%) WD (g·cm-3) 0.548 0.272 0.39 (0.03) 8 WN (mg·g-1) 19.080 1.067 8.99 (3.72) 41 RXA 0.634 0.092 0.31 (0.12) 39 RPHA 0.146 0.026 0.09 (0.02) 22 RPA 0.098 0.005 0.03 (0.01) 33 RRC 0.136 0.000 0.07 (0.02) 29