Abstract
Environmental contaminants such as heavy metals and organic pollutants such as herbicides may cause a variety of physiological or oxidative stresses in plants. Metribuzin is a triazinone herbicide that interferes with photosynthetic electron transport between the primary and secondary acceptors of photosystem II (PSII). In this study, the effects of metribuzin on the activities of certain enzymes of Triticum aestivum L. cv. Zarrin were determined. Thirty days old plants were treated with 20 ml metribuzin at recommended field dose (1.01 kg ha-1) through foliar application, and the plants were harvested after 7 days. The results show that metribuzin significantly increased the activities of guaiacol peroxidase, ascorbate peroxidase and polyphenol oxidase. However, metribuzin had no significant effect on the activity of glutathione reductase. Foliar application of metribuzin resulted in decrease in soluble carbohydrates. In addition, metribuzin significantly reduced shoot fresh and dry weights production of plants. These findings indicate an induced oxidative stress in wheat following metribuzin treatment. Key words: Antioxidant enzymes, herbicide, metribuzin, Triticum aestivum.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
