With the increase of chromosome ploidy of pepper, the stomatal density of leaf declined obviously, and the chloroplast number and the width of guard cell rose notablly.

• 结果显示：随辣椒染色体倍性的提高，叶片气孔密度呈明显下降趋势；保卫细胞叶绿体数与保卫细胞横径呈明显上升趋势；