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目的:通过观察怀地黄不同主栽品种叶的形状,非腺毛和气孔器大小、密度等特征,为怀地黄主栽品种的鉴定及优良品种的选育提供依据。方法:用直尺测量叶片的长度和宽度,在扫描电镜下计数不同主栽品种怀地黄叶表面非腺毛和气孔的密度,测量其长度。结果:叶片长度、宽度及长宽比,非腺毛和气孔的长度、密度等,在怀地黄不同主栽品种间具有差异。结论:叶的形状,非腺毛和气孔的密度、长度等叶的形态特征可以作为怀地黄不同品种间鉴别的依据。
OBJECTIVE: To provide evidences for identification of cultivated varieties of Rehmannia glutinosa and breeding of elite varieties by observing the leaf shape, non-glandular trichomes and stomatal dimensions and density of different main cultivars of Rehmannia glutinosa. Methods: The length and width of the leaves were measured with a ruler, and the density of non-glandular hair and stomata on the surface of the yellow leaves of different main cultivars was counted under a scanning electron microscope to measure the length. Results: The leaf length, width and aspect ratio, length and density of non-glandular hair and stoma were different among different main cultivars of Rehmannia glutinosa. Conclusion: Leaf shape, non-glandular hair and stoma density, length and other morphological characteristics of the leaves can be used as a basis for the identification of different varieties of Rehmannia.