上表皮气孔指数的变化规律不明显；
The stomatal index in the adaxial epidermis changed variably during development of cotyledons.
气孔指数在各器官上的变化规律差异较大。
Stomatal index in the epidermis of different organs changed variably during the developmental stages.
统计并测量叶表皮气孔大小、气孔密度及气孔指数。
The stomatal size , density and index were measured and counted .
统计并测量叶表皮气孔大小、气孔密度及气孔指数。
The stomatal size , density and index were measured and counted .
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