以继代培养30天的狗头枣、骏枣、木枣四倍体组培苗为实验材料,用透明胶带粘取叶片下表皮气孔,对这三种四倍体枣树组培苗气孔长度、宽度、面积及保卫细胞内叶绿体数目上的差异作了研究,并与原种枣树大田苗气孔作对比。三种四倍体枣树狗头枣组培苗的气孔长度变异程度最大,木枣的变异程度最小;气孔宽度四倍体木枣组培苗变异程度最小,骏枣的变异程度最大;气孔密度和叶绿体数目均是四倍体狗头枣组培苗的变异程度最小,木枣的变异程度最大。 Twenty-four days old seedlings of Tamarix chinensis, Jujube and Zizyphus jujuba were used as experimental materials, and the stomata of the lower epidermis of the jujube were adorned with scotch tape. The stoma length, Width, area and the number of guard cells in the chloroplast on the differences were studied, and with the original jujube seedling field jujube for comparison. The stomatal length variation of the three kinds of quadruploid jujube tree jujube cultivars was the highest, and the variation degree of jujube was the smallest. The variation degree of tissue culture seedlings of tetraploid jujube with the stomatal width was the smallest and the variation degree of jujube was the largest. The stoma density and The number of chloroplast was the least degree of variation of tissue culture seedlings of tetraploid dog head jujube, jujube the largest degree of variation.