FAST METHOD FOR THE DETECTION OF TRANSPORT PROCESSES IN PLANT-TISSUESBY RADIOTRACING

The efficiency of nutrients, microelements and plant protective agents and additives applied on foliar and various aeriel parts of plants de pends on the adsorption of their spray drops and the penetration of ag ents into tissues, cells and inner caves. The permeability of tha cuti cular membrane and the mode of entry of above substances through the c uticle and their mobility in other tissues are poorly understood but h ave been the subject of intensive research. The traditional methods in biological systems are the auto-microradiography and sample taking me thods. The radioactive tracer method developed by us is suitable for d etermining the effective diffusion coefficients characterizing the mig ration processes and concentration distributions of these materials in plants by consumption of minimal amount of beta-labelled radioactive isotopes in very short time.