Variation in Physicochemical Content in Rhizospheric Soil Samples of Alstonia Belongs to the Same Locations

Alstonia scholaris (L.) R. Br. is an ornamental plant, commonly observed in gardens, also known as devil’s tree or dita tree. The plant is considered poisonous, and birds rarely nest on it. It belongs to the family Apocynaceae and is native to Asia and Australia. Morphologically, this tall plant has funnel shaped flowers and glossy leaves. It holds cultural significance and is used in various medicinal applications. Rhizospheric soil samples were analyzed for several parameters including pH and EC measurement, estimation of nutrients, and chlorophyll content. The species Alstonia scholaris is present on the campus of SRTM University, Nanded, which predominantly has black clay soil that is suitable. These trees are located throughout the campus and are found in the Nanded city. The plants on campus belong to the same genus and species but display differences in color of leaves and physicochemical parameters of the rhizospheric soil. All the plants are growing close to each other approximately ۱۰ meters. With the physicochemical analysis of the soil, there were differences in the nutritional composition of the rhizospheric soil. Among all selected parameters, pH, EC, carbon content, phosphorus content, potassium content, and chlorophyll were recorded as ۷.۳ to ۸.۵, ۰.۱۶ to ۰.۳۵ dS/m, ۲.۸ to ۶.۳×۱۰۳ mg/kg, ۰.۴۷ to ۶.۲۳ mg/kg, ۳۴.۹ to ۹۲۷ mg/kg, and ۹.۷۲ to ۲۱.۹۷×۱۰-۳ mg/mL. Even when plants are in proximity, soil parameters differ. Plants do not receive the same nutrients. Variation in the pigmentation is a result of nutrient uptake by the plants reflected in leaf color variations.

کلیدواژه ها:

Alstonia ، Chlorophyll ، Carbon ، Phosphorus ، Potassium