Studies the effects of exposure to light of the laser diode Melles Griot (λ = 670nm), He-Ne laser (λ = 632.8nm) and argon laser (λ = 514nm) on selected soil micro-organisms, fungi that destroy old manuscripts, pictures, stone, etc. and on humification and mineralization of soil samples. Also studies exposure effects on seed growth and biomass production of a few species of cultivated plants and...
