ESTUDIO COMPARATIVO DE LOS EFECTOS DE BIOESTIMULACIÓN PRODUCIDOS POR LUZ LÁSER ROJA E INFRAROJA SOBRE SEMILLAS DE TRIGO (TRITICUM AESTIVUM L)

Abstract

In this study the effects of laser radiation on the growth of coleoptile and root system as well as in the germination of wheat seeds of the variety Nahuatl (Triticum aestivum L) were investigated. The wavelengths of laser diodes used were 660nm, 850nm, 980nm and 904nm. For the treatment of wheat seeds seventy five laser treatments were defined with different intensities and exposure times. Each laser treatment was applied once before planting. The experiments were developed under laboratory conditions. The statistical analysis showed significant activations and deactivations for the growth of the coleoptile, the root system and the germination. Based on the results it is concluded that the responses of activation and deactivation of the aforementioned variables were greater when using laser diodes in the infrared spectra. When activation and deactivation responses were observed on the growth of wheat seeds, the parameters of laser radiation that were responsible for these changes were the wavelength, the intensity and the exposure time of laser radiation.