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Registration Number

0222U005363, 0121U112018 , R & D reports

Title

Physiological and biochemical peculiarities of formation and functioning of symbiotic systems Glycine max-Bradyrhizobium japonicum when using fungicides

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Head

Khrapova Anastasiia V., Кандидат біологічних наук

Registration Date

28-12-2022

Organization

Institute of Plant Physiology and Genetics of the National Academy of Sciences of Ukraine

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As a result of the investigation, it was found that fungicides can have a positive effect on the accumulation of vegetative mass and growth processes of plants, as well as contribute to the acceleration of seed germination, however, at the initial stages of plant ontogenesis, they have a significant inhibitory effect on the nodulation and nitrogen-fixing activity of root nodules, the intensity of photosynthesis, transpiration, affect the ratio of photosynthetic pigments. The degree of this effect depends on the active substance of the fungicides, the method and time of seed treatment. It is possible to reduce the inhibitory effect by early seed treatment and the use of fungicides during the growing season. It is shown that the correlation dependence between the intensity of photosynthesis of the whole plant and the activity of nitrogen fixation gradually increases during the growing season, while the relationship between NFA and the accumulation of dry matter weakens. It was recorded that changes in the activity of antioxidant enzymes in soybean plants are a typical stress-protective reaction in response to treatment. The change in the percentage and quantitative content of the main metabolites (alcohols, organic acids, sugars, amino acids) in soybean roots at the early stages of symbiosis formation during seed treatment with fungicides indicates that the plant organism reacts to such an influence as a stress factor and promotes the activation of protective mechanisms for the adaptation of the formed symbiotic systems and stabilization of physiological processes

Product Description

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Pukhtayevych Petro P
Homenko Yulia O.
Khrapova Anastasiia V.

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2022-12-28