为给苹果矮化砧木的筛选与鉴定提供依据 ,通过测定 10种苹果砧木枝条与叶片的解剖结构 ,发现 :不同矮化类型砧木枝条的材皮比范围为 2 0 5～ 3 2 9,材皮比与砧木的矮化程度呈显著负相关 ;SH系砧木随矮化程度的升高 ,导管占木质部的百分比及射线宽度变小 ;不同砧木叶片的栅栏组织厚度大于海绵组织厚度 ,极矮化砧木叶片的栅栏组织厚度大于矮化、半矮化砧木的栅栏组织厚度 ;叶片的栅海比随砧木的矮化程度升高而增大 In order to provide a basis for the screening and identification of apple dwarf rootstocks, the anatomical structures of the branches and leaves of 10 kinds of apple rootstocks were determined. The results showed that the ratio of material to sheath of different dwarfing rootstock branches ranged from 205 to 392, And the dwarfing degree of rootstocks was significantly negatively correlated. With the increase of dwarfity, the percentage of SH tubestocks to xylem and the width of radiation became smaller. The thickness of palisade tissue of different rootstocks was greater than the thickness of sponge, The palisade tissue thickness of the leaves was greater than that of the dwarfing and semi-dwarfing rootstocks. The ratio of grate to leaf of the leaves increased with the dwarfing of the rootstocks