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The physiological reaction of legume plants to inoculation with algal-rhizobial associations was studied, based on the nodule bacteria, their Tn5 mutants and the cyanobacterium Nostoc punctiforme . It was shown that binary inoculation with rhizobia and cyanobacteria may have a positive effect if the inoculation agents and their ratio are correctly chosen. The data obtained on the effect of complex bacterization on the development and productivity of plants under legume-rhizobial symbiotic conditions indicate the prospects of bacterial preparations based on cyanobacteria and rhizobia, including their genetically modified strains.

Viability of soybean nodule bacteria under various technologies of production of bacterial preparations and influence of homologous lectin on their efficiency had been studied. It is shown that perlite and vermiculite are equivalent carriers in terms of technology for product¬ion of bacterial preparations. The findings indicate perspectiveness of homologous lectin ме as a component of bacterial preparations.