Growth of poplar transgenic lines under drought stress.

Height growth (HG, cm), basal diameter growth (BDG, mm), leave area (LA, cm2) and total biomass (TB, g) were determined. Means ± SE are shown. Within a treatment (row), means followed by an asterisk are significantly different from the control (*P aexpressed as increase of value after treatment relative to that at beginning of treatment, n = 10 plants for each line.bn = 9 experiments for each line.cn = 9 plants for each line.

本研究测定了株高生长量（Height growth, HG，单位：cm）、基径生长量（basal diameter growth, BDG，单位：mm）、叶面积（leaf area, LA，单位：cm²）及总生物量（total biomass, TB，单位：g）。结果以平均值±标准误（standard error, SE）呈现。同一处理（行）内，标注星号的平均值与对照组存在显著差异（*P < 0.05，数值以处理后值相较于处理初始值的相对增长量表示）。a. 每个品系的样本量为10株植物；b. 每个品系的试验次数为9次；c. 每个品系的样本量为9株植物。