The researchers studied how wheat seedlings are affected by UV-B radiation and salt stress. They found that both UV-B radiation and salt stress decreased plant growth and photosynthesis, while increasing damage to the plant cells. However, the combination of UV-B radiation and salt stress did not have a significantly greater impact compared to salt stress alone. The levels of certain protective compounds and enzymes in the plants increased under all stress conditions, with the biggest increase seen in plants exposed to both UV-B radiation and salt stress. Overall, the results suggest that UV-B radiation does not significantly worsen the effects of salt stress on wheat seedlings.