The enhanced UV-B radiation generally has negative impacts on growth, yield and quality of some crop plants such as soybean, winter wheat, rice, sorghum, cotton and corn. The response varies with different plant species. Some are very sensitive and some are least sensitive. With enhanced UV-B radiation photosynthesis decreases, plant height and leaf area decrease, dry matter production, yield and quality reduces in many crops. In the study conducted by Tevini et al.
Rice is among the most important crop plants in the world.
Alterations in biomass, morphology, and maximum photosynthesis were determined. For these sensitive cultivars, leaf area and tiller number were also significantly reduced. Photosynthetic capacity, as determined by oxygen evolution, declined for some cultivars. In a six year field study of a UV-sensitive soybean, Teramura et al. Reference Becwar, M.R., F.D. Morre III, and M.J. Bureke.