Most studies of UV exposure to plants have concentrated on the effects of long-term physiology. However, few studies in the literature have been conducted on observing the effects of short-term exposure of UV. The latter was addressed by using cultivars of Rubus spectabilis (Salmonberry) exposed to 15 second intervals up to 90 seconds total of UV exposure in a typical UV hood. Photosynthetic activity was then measured and compared to a control group. Of note, the maximum photosynthetic rate appeared to decrease by 19 percent despite the relatively short time of exposure. Photosynthesis did not decrease significantly with lower light levels.
Bean, Byron. "The Effects of Short-Term UV-B Exposure on Rubus spectabilis." Poster presented at the Academic Excellence Showcase, Western Oregon University, May 31, 2012.
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