Possible mechanisms behind the light-induced wilting of dark-germinated pea (Pisum sativum L.) epicotyls were studied. Illumination with photosynthetically active radiation caused a fast turgor loss and wilting in the middle segments of the epicotyls accompanied by accumulation of water in the intercellular cavities. During this process, room temperature fluorescence emission spectra showed gra...

A direct relationship exists between irradiance of solar ultraviolet (UV) radiation and concentration of UV-absorbing compounds, know as mycosporine-like amino acids (MAAs), in the Hawaiian reef coral Pocilloporu dumicornis. However, MAA concentration is also influenced by flow regime and the irradiance of photosynthetically active radiation (PAR). High irradiances of UV radiation in reef envir...

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plant dry matter accumulation has a linear relation with accumulative photosynthetically active radiation (par). intercropping could be a strategy for increasing light absorption in agronomic systems and it may improve radiation use efficiency (rue). thus this study was conducted in order to evaluate radiation absorption and use efficiency in potato (solanum tuberosum l.) –corn (zea mays l.) in...