The effect of herbicide based on desmedifam and fenmedifam on the physiological characteristics of wheat

This article discusses environmental issues related to herbicide accumulation in soil and their impact on subsequent crops in crop rotation. An herbicide containing desmedipham and phenmedipham in equal ratio is investigated. The effects of the herbicide on such physiological processes in wheat as germination and growth of roots and shoots of seedlings, activity of proton pumps in the root system of wheat seedlings after incubation in an herbicide solution for 24 hours were studied: The experiments were conducted with different total concentrations of desmedipham and phenmedipham mixture (0.5 ppm, 5 ppm and 50 ppm). The results showed that the herbicides have a dose-dependent inhibitory effect on plant growth and proton pump activity. The greatest inhibitory effect was found at a total concentration of 50 ppm. The obtained data indicate the necessity for careful use of the herbicide to minimize its negative impact on crop plants. Keywords: TRITICUM AESTIVUM L., MULTICOMPONENT HERBICIDES, PHYTOTOXICITY, GERMINATION, SPROUTING, GROWTH, ACIDIFYING ACTIVITY