Stomata Characteristics of Ketapang Leaves (Terminalia catappa L.) Based on Environmental Differences

Abstract

Abstract Ketapang (Terminalia catappa L.) is a type of plant that is widely planted on the roadside of urban areas that functions as a green plant. The response from green plants exposed to pollutants originating from motorized vehicles can be seen from the leaf stomata. This study aimed to determine the characteristics of the stomata of Ketapang leaves in areas with different environmental conditions. The parameters observed were density and stomata distribution. The sample was taken in Bung Hatta Forest Park and on the edge of Prof. Dr. Hamka streets. Observation of stomata using preparations with replica or mold method. The results showed that there were significant differences in the stomata density of Ketapang leaves in both locations. Stomata density on Prof. Dr. Hamka street is higher than the Bung Hatta Forest Park. The average density of the stomata of Ketapang leaves in Bung Hatta Forest Park is 132738.09/mm2 while at the edge of Prof. Dr. Hamka street is 232142.85/mm2. The distribution of stomata of Ketapang leaves in both locations showed no difference, i.e. they were of the hypostomatic type (stomata were only found on the lower surface of leaves).