Effect of UV-B radiation on chlorophyll fluorescence, photosynthetic activity and relative chlorophyll content of five different corn hybrids

This research presents an experimental study of the effect UV-B radiation (7.5 Wm−2) on change total concentration chlorophyll ΔChl and energy that a plant can store during process photosynthesis. The aim was to investigate spectral lines five genetically different corn hybrids find with better resistance. Chlorophyll fluorescence from leaves used as method. plants were exposed for 19 days. following results obtained: a) there is significant variation between regarding radiation, b) indicative element in functioning photosynthetic apparatus represented variations relative composition pigments, c) regardless what may be cause plant's ability deposit part absorbed primary products photosynthesis, it has been shown two out investigated show great resistance d) photosynthesis measure harmful radiation.