Effect of increased temperature sensitivity study on yield for cv. Swarna of rice over Khordha region

Abstract

In order to determine the impact of climate change, namely the temperature, on the production of the swarna rice variety, the study was carried out in the Khordha district of Odisha between 2014 and 2019. DSSAT CERES-Rice crop simulation model's weather modification window was mostly used to experiment with temperature adjustments for the crop's anthesis stage (60-90 DAP), specifically variations in maximum and average temperatures of (0.5 - 4.0 °C) and (0.5 - 3.0 °C), respectively. The experiment was performed three times and set up as a split plot design. The findings demonstrated that when temperature increased over the threshold limit, the yield decreased. Only the first planting date exhibited a significant interaction between the highest and average temperature with grain yield and the other two dates of sowing showed no significant interaction.