Paprika seedlings were grown in different temperatures to see how they handle stress. Low temperature caused the most damage, affecting photosynthesis and growth the most. High temperature also had negative effects, but not as severe as low temperature. Chlorophyll levels dropped more in low temperature, while proline levels increased in both low and high temperatures. Plant growth was stunted in low temperature. Overall, low temperature was worse for paprika plants than high temperature in terms of photosynthesis and growth.