The heavy metals, lead (Pb) and cadmium (Cd), electric conductivity and pH value in the leaves and barks of the samples, and the cuticular feature as stomatal numbers of the leaves were measured to reveal the effect of urban traffic environment on roadside trees.

Many studies have reported that increases in atmospheric CO 2 concentration ([CO 2]) lead to decreases in plant stomatal density (SD) and stomatal index (SI).

The coefficient of variation of stomatal index is more stable than that of stomatal density in both Sequoia sempervirens and Metasequoia glyptostroboides.

As to the drought-resistant of SM8928, a comparisona of a new variety of wheat with XY22 is made in pigment content,Stoma number and external feature.

Leaf epidermal structure and stomatal parameters of the genus Taxodium (Taxodiaceae);

Three main research directions of cuticular analysis are:1) studies on epidermal microstructure of fossil plants;2) investigations on relationship among the atmospheric CO_2,climatic change,and stomatal parameters of fossil plants,and 3) discussions on the geochemical characteristics of fossil cuticles.

The effect of stomatal parameters of Chlorophytum comosum in different cultural condition

Elevatedcarbon dioxide and ozone concentrations had little effects on stomatal parameters.