Responses Of Buckwheat Species (Fagopyrum Tataricum Gaertn. And F. Esculentum Moench.) To Ultraviolet B Radiation

During last few decades, due to concern of ozone layer depletion and enhancement of ultraviolet B radiation (UV-B, 280-315 nm), the agronomist want to know the responses of different crop species to UV-B. In the first experiment of our study, the effect of different UV band [B-UVA(315-400 nm), N-UVA(315-340 nm), B-UVB(275-400 nm), N-UVB(290-340 nm) and UV- (>400nm, as control)] on the cucumber (Cucumis sativus) and soybean (Glycine max) were investigated in growth room. Spectra-dependent differences in growth and oxidation indices existed within UV-A bands as well as UV-B bands. The general biological effects of different band were UV- < B-UVA< N-UVA