Fig. 1
From: Natural Diversity in Stomatal Features of Cultivated and Wild Oryza Species
Schematic representation of a pair of rice stomatal complex (SC), accompanied with guard cells (GC), subsidiary calls (SB); and epidermal cells (EP). The diamond shaped SC is structured by two long guard cells, two adjacent subsidiary cells. These are separated by files of epidermal cells. The diagram shows the length (L, the longer diameter of the stomata) and the width (W, the shorter diameter of the stomata) of SC and closed GC pair. GCL and GCW are used to calculate the stomatal pore length (ρ) and depth (l). π is the mathematical constant which is 3.14. Pore length, pore depth and amax is calculated according to equation of Franks and Farquhar 2001, 2007. Counting of stomata and physical measurements of all the dimensions and area of SC and GC were performed using Image J image processing software. The long axis of the stoma lies parallel to the leaf lateral axis