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对２个四倍体葡萄材料四玫Ⅰ及四玫Ⅱ及其连续３代的扦插株进行了表皮气孔性状和花粉粒特性观察，并对根尖、茎尖、卷须细胞进行了染色体计数。结果表明：各代植株分生组织层Ｌ１，Ｌ２和Ｌ３的倍性结构没有改变，四玫Ⅰ及四玫Ⅱ倍性稳定。
The stomatal characteristics and pollen grains of two tetraploid grape materials, Si Mei Ⅰ and Si Mei Ⅱ and their continuous three generations of cuttings were observed. The chromosome counts of apical tips, shoot tips and tendrils were performed. The results showed that the ploidy structure of L1, L2 and L3 did not change in the meristematic tissues of each generation, and the tetraploids Ⅰ and SiMei Ⅱ were ploidy-stable.