Journal of Agronomy and Field Innovations

Background: Wheat is a vital crop that has been threatened by climate change heat-related phenomena which impacted reproduction and reduced yield.
Objective: The goal of this study is to understand how high temperatures have affected the processes listed above in different types of wheat and identify the corresponding physiological signs that indicate the heat-resistance of wheat variations.
Methodology: 5 different types of wheat were grown under two different conditions: normal (24°C day/night temperatures) and heat stressful (50°C day temperatures, 10-day period at the flowering stage). Various methods of analysis were used in order to gain reliable data on factors such as carbon dioxide emissions, fluorescence of leaves, canopy temperature using infrared cameras, as well as indicator values of other markers.
Results: High temperatures have greatly affected carbon dioxide emission rates, conductance, efficiency of photosynthetic processes, as well as elevated canopy temperature.
Conclusion: The combination of canopy temperature depression and antioxidant enzyme profiling is an efficient and practical method of screening wheat genotypes for heat tolerance.