Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid
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Plant Protection Research Department, Hamedan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education, and Extension Organization (AREEO), Hamedan, Iran
10.22034/ijws.2025.135817
Abstract
Chlorophyll a fluorescence is a reliable physiological indicator for determining changes induced in the photosynthetic system and can be altered by various factors that are indirectly involved in photosynthesis.Two greenhouse experiments were conducted to study the effect of salicylic acid (SA) in combination with premixed herbicides including iodosulfuron-methyl + mesosulfuron-methyl sodium + diflufenican (Othello) and pinoxaden + flurasolam (Axial One) on chlorophyll a fluorescence parameters of wild mustard (Sinapis arvensis). The results showed that application of both herbicidesdecreased the maximum fluorescence (Fm) and the maximum photochemical efficiency of photosystem II (Fv/Fm), while increasing the minimum fluorescence (Fo). Application of Othello at a rate of 528 g a.i. ha⁻¹ resulted in a 30.78% reduction in the Fv/Fm ratio, whereas application of Axial One at 300 g a.i. ha⁻¹ caused a 72.30% reduction, compared to the untreated control (without herbicide and salicylic acid), seven days after herbicide application. Correlation analysis revealed significant relationships between chlorophyll a fluorescence parameters (Fm and Fv/Fm) and weed dry weight under different herbicide treatments. In contrast, minimum fluorescence (F₀) showed a negative correlation with dry weight, with the strongest negative relationship observed under the Axial One treatment. Overall, all herbicide treatments significantly reduced the dry weight of wild mustard, while the application of salicylic acid had no detectable effect on herbicide efficacy.
Khatami,, S. A. , Alebrahim, M. T. and Samadi Kalkhoran, E. (2025). Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid. Iranian Journal of Weed Science, 21(1), 184-201. doi: 10.22034/ijws.2025.135817
MLA
Khatami,, S. A. , , Alebrahim, M. T. , and Samadi Kalkhoran, E. . "Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid", Iranian Journal of Weed Science, 21, 1, 2025, 184-201. doi: 10.22034/ijws.2025.135817
HARVARD
Khatami,, S. A., Alebrahim, M. T., Samadi Kalkhoran, E. (2025). 'Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid', Iranian Journal of Weed Science, 21(1), pp. 184-201. doi: 10.22034/ijws.2025.135817
CHICAGO
S. A. Khatami, , M. T. Alebrahim and E. Samadi Kalkhoran, "Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid," Iranian Journal of Weed Science, 21 1 (2025): 184-201, doi: 10.22034/ijws.2025.135817
VANCOUVER
Khatami,, S. A., Alebrahim, M. T., Samadi Kalkhoran, E. Evaluation of the Efficacy of some Premixed Herbicides for Controlling Wild Mustard (Sinapis arvensis) Using Chlorophyll a Fluorescence in the Presence and Absence of Salicylic Acid. Iranian Journal of Weed Science, 2025; 21(1): 184-201. doi: 10.22034/ijws.2025.135817
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