PERSPECTIVES OF PHYSIOTECHNICS IN RELATION TO THE NEW TECHNIQUES OF BIOTECHNOLOGY

Abstract

After the rediscovery of Mendel's laws, scientific and technological events have been presented that have allowed continuous improvement of plant genetic breeding methodologies to manipulate the characteristics of cultivated plants (Table 1). Genotechnology, through its different selection methods and using genetic variability as a premise, particularly intraspecific variability, has directed its efforts to obtaining new varieties of plants that are more productive and better adapted to adverse biotic and abiotic environments. To measure the adaptation capacity of the selected individuals, it is advisable to use physiological and physiotechnical parameters, due to their great usefulness for discrimination. of genotypes based on characteristics defined for that adaptation. Physiotechnics, in addition to perfecting and modernizing the type of measurements of the physiological reactions of plants subjected to the pressure of extreme environments, has also managed to incorporate the study of the biochemical processes that occur as a consequence of this selection pressure. The latter with the purpose of associating physiological phenomena with the presence or activity of metabolites involved in adaptation mechanisms.