Активність глутатіон-s-трансферази та перебіг реакцій пероксидного окиснення ліпідів у листках пшениці полби звичайної за дії гербіциду і регулятора росту рослин

Abstract

The article presents the results of the vegetative experiment on the influence of various rates of the herbicide Prima Forte 195 (0.5, 0.6 and 0.7 l / ha) under various methods of using the plant growth regulator Wuxal BIO Vita on the intensity of lipid peroxidation reactions in emmer wheat plants and on the activity of the enzyme glutathione-s-transferase. It shows that Prima Forte 195 and its mixtures with the plant growth regulator Wuxal BIO Vita can significantly influence the activity of glutathione-S-transferase and the flow of lipid peroxidation reactions. Thus, while deter- mining GST, it was established that the activity of the enzyme was sufciently high and grew on the tenth day after the application of the herbicide and plant growth regulator. It is worth noting that on the tenth day, the GST activity in the variants of the tank mix of the herbicide and plant growth regulator decreased as compared to the indicators on the third day, which indicates the positive eJect of the complex application of the preparations on the course of detoxification processes in emmer wheat plants. It was also found that when using Prima Forte 195 and Wuxal BIO Vita, the content of TBA-active products (MDA) in the leaves of emmer wheat increased significantly. The most intensive growth was traced when the herbicide was used without the plant growth regulator. Key words: enzymes, lipid peroxidation, glutathione-S-transferase, herbicide, plant growth regulator, emmer wheat, Triticum dicoccum.