Model researches of cadmium and strontium salts impact on the wheat photosynthetic indicators

It was studied the impact of cadmium and strontium salts on fluorescent characteristics of photosynthetic pigmentary complexes of wheat isogene lines sort "Mironovskaya 808". It is shown that the incubation of wheat sprouts in CdCl 2 and SrCl 2 solutions suppressed growth processes, reduced intensity of photosynthesis. During the post-stressful period photosynthesis amplified. The analysis of induction curves of fluorescence of chlorophyll of all grades (Rht 9, 13, 17) showed that at early stages toxic impact of Cd and Sr in the studied concentration is shown not only in suppression of electronic transport of FSII, but also in reduction of degree of energization the photosynthetic membranes. Initial developments of toxic impact of Cd and Sr are connected with decrease in efficiency of light reactions of photosynthesis, as defines further deterioration of productional properties.