姜品种叶片形态学研究

Leaf Morphology in Ginger? Cultivars

摘要:

用光镜和电镜对20个姜(Zingiber officinale Rosc.) 品种的叶表皮细胞、气孔器进行了观察，对叶形指数进行了研究。发现姜叶片表皮细胞的形状主要有正六边形、长六边形和不规则六边形3种类型.气孔器均为平列型。气孔器的宽度位于21.5-31.0μm之间、气孔器指数在1.75-8.22范围内，叶形指数有较大差异等。表皮的这些特征为确定品种间亲缘关系提供了依据。

Abstract:

Leaf epidermal cells and stomatal apparatuses in 20 ginger cultivars were observed under light microscope and scanning electron microscope and leaf shape index was examined as well. The leaf epidermal cells are hexagonal, long hexagonal and irregular hexagonal in shape. Stomatal apparatuses are all paracytic with 21.5-31.0μm in width. The stomatal apparatus indices are from 1.75 to 8.22 and leaf shape indices vary greatly, which can be used in elucidating relationship among the cultivars.