Such basic statistical analysis as the mean, variance , standard deviation , CV (coefficient of variation) to the morphological characters of 20 populations of Ph.

• 其主要结果如下: 1.；对20 个毛竹居群形态学性状指标的平均值、方差、标准差、变异系数等基本统计分析表明；毛竹不同居群间在形态学性状上的遗传变异较大；变异系数为6