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Information × Registration Number 0220U104338, 0120U102264 , R & D reports Title Formation of an effective complex of metal nanocarboxylates to optimizе the nitrogen fixation process and increase soybean productivity under dry conditions popup.stage_title Head Morhun Volodymyr V., Доктор біологічних наук Registration Date 16-12-2020 Organization Insninute of plant physiology and genetics popup.description2  As a result of this work it was found that the most optimal for the development of complex bacterial preparations for soybeans grown in arid regions are strains B1-20 and T21-2. In this case, the most positive reaction, which was expressed by a significant increase in bacterial cell biomass, to the use of metal nanocarboxylates was in strain B. japonicum B1-20, despite the fact that it was characterized by the slowest growth of rhizobial culture of all strains studied. It was found that the use of metal nanocarboxylates as components of the rhizobial suspension has mitigated the negative impact of insufficient water supply on the efficiency of bean-rhizobial symbiotic systems. The most pronounced protective effect was possessed by nanocarboxylates Ge, Co and Fe, which regulated the nodulating activity of rhizobia and the processes of molecular nitrogen fixation by symbiotic systems under the action of insufficient water supply. Prolonged drought has been shown to induce an increase in superoxide dismutase activity in root nodules and soybean leaves during joint seed treatment with rhizobia culture strain B1-20 containing metal nanocarboxylates, which indicates the development of antioxidant protection in the formed symbiotic systems. Bean-rhizobial systems, formed with the participation of soybean plants and B. japonicum B1-20 with the addition of germanium carboxylate to the culture medium, proved to be the most adapted to the action of dehydration. The obtained data suggest that the use of nanocarboxylates Ge, Fe and Co as components of the inoculation suspension at a concentration of 1: 1000 promotes the adaptation of bean-rhizobial symbiotic systems to drought. This effect is achieved by stimulating the basic physiological processes for legumes, namely biological nitrogen fixation and the intensity of photosynthesis and can be one of the important measures to increase their resistance to insufficient water supply. Product Description popup.authors Kots Sergii Ya Mamenko Tetyana P Pavlyshche Anastasiya V Pukhtayevych Petro P Rybachenko Liliya I Rybachenko Oleksandr R popup.nrat_date 2020-12-16 Close