In the present study, stomatal frequency is expressed as the stomatal index (SI), which is calculated as SI (%) = [SD / (SD + ED)-RSB- X 100, where SD is the stomatal density and ED is
the epidermal cell density.
This anomaly may result from the deficiencies in their modern calibration set and the great variability in SI, SD, and
epidermal cell density among Betula trees.
Not exact matches
Others plants show different developmental strategies, increasing size (stomatal index), number (
density) or
epidermal cells size of stomatas.