Increased UV-B radiation was found to inhibit both wheat plant and soil respiration during the growth stages from elongation to flowering. The study used a field experiment to measure respiration rates under different conditions. Results showed that UV-B radiation led to lower respiration rates in both plants and soil compared to control conditions. Plant respiration was less sensitive to temperature changes under UV-B radiation, while soil respiration became more sensitive. Overall, the study suggests that UV-B radiation can impact the respiration of wheat plants and soil during crucial growth stages.