Investigation Effects of Carbon Dioxide (CO2) Concentrations Produced from a CO2 Enrichment Design Process on the Growth and Physiological Properties of Corn and Soybean

Abstract

Climate change is one of the most debatable reasons for changing plant performance. Meanwhile, a higher amount of carbon dioxide (CO₂) directly or indirectly affects the growth and development of corn and soybean oil plants; CO₂ concentration changes also affect the dry weight characteristics of the plant. In this experiment, three effective levels of CO₂ concentration have been evaluated on corn and soybean plants. Increasing the effectiveness of CO₂ concentration from 400 PPM to 800 PPM depicted a significant increase in the plant's physiological traits, a 54% and 8.5% increase in Soybean biomass and Corn biomass, respectively. Furthermore, based on leaf area, the results reveal a 4% and 5% increase in Soybean and Corn, respectively. In contrast, increasing the CO₂ concentration to 1000 PPM resulted in a decrease in plant performance and physiological traits, both directly and indirectly. With increasing CO₂ concentration, a direct increase in physiological traits is observed.