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

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。