可将保卫细胞气孔长度与保卫细胞叶绿体数两个气孔性状相结合，作为饲用甜菜多倍体育种初期的筛选鉴定指标。

Taking the diploid and tetraploid cultivars of fodder beet as experimental materials, the relationship between chromosome ploidy and leaf stomatal characters was studied.

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对杜仲二倍体和多倍体的气孔进行了观察比较发现二倍体杜仲的气孔长度小于多倍体的，气孔密度则相反。

By observing plant stomata, it shows us the stomas are larger than diploid, but the tetraploid density is smaller.

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