Pest management science · 2026
Effects of elevated CO2 and temperature on cocklebur (Xanthium strumarium L.) and its herbicide response.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Suer Islam Emrah, Tursun Nihat
Аннотация
BACKGROUND: Climate change, characterized by rising atmospheric CO2 and temperature fluctuations, significantly alters crop-weed interactions and weed management efficacy. This study evaluated the interactive effects of elevated CO2 (400, 600, 800, and 1000 ppm) and temperature regimes (26/16°C and 29/19°C) on the biomass accumulation of Xanthium strumarium and the efficacy of two herbicides with distinct modes of action: trifloxysulfuron-sodium (systemic, ALS inhibitor) and fluometuron (soil-active, PSII inhibitor).
RESULTS: Elevated CO2 concentration up to 1000 ppm at the optimal temperature (26/16°C) significantly stimulated the vegetative growth and dry biomass of X. strumarium. Crucially, dose-response analyses revealed that this climate-driven accelerated growth did not induce herbicide resistance; rather, it increased the weed's susceptibility to the systemic herbicide. Elevated CO2 facilitated the translocation of trifloxysulfuron-sodium due to increased plant metabolism, thereby significantly lowering ED50 values. In contrast, the efficacy of the soil-applied fluometuron remained highly stable and unaffected by variations in either CO2 or temperature.
CONCLUSION: The interaction between climate change variables and chemical weed control is fundamentally driven by the herbicide's mode of action. While elevated CO2 acts as a fertilizer for X. strumarium, the resulting rapid growth paradoxically increases the efficacy of systemic herbicides by accelerating the movement of active ingredients. Meanwhile, soil-active herbicides like fluometuron offer a climate-resilient weed management strategy. Future studies should incorporate molecular approaches to fully elucidate these mode-of-action-specific physiological responses under changing climatic conditions. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
RESULTS: Elevated CO2 concentration up to 1000 ppm at the optimal temperature (26/16°C) significantly stimulated the vegetative growth and dry biomass of X. strumarium. Crucially, dose-response analyses revealed that this climate-driven accelerated growth did not induce herbicide resistance; rather, it increased the weed's susceptibility to the systemic herbicide. Elevated CO2 facilitated the translocation of trifloxysulfuron-sodium due to increased plant metabolism, thereby significantly lowering ED50 values. In contrast, the efficacy of the soil-applied fluometuron remained highly stable and unaffected by variations in either CO2 or temperature.
CONCLUSION: The interaction between climate change variables and chemical weed control is fundamentally driven by the herbicide's mode of action. While elevated CO2 acts as a fertilizer for X. strumarium, the resulting rapid growth paradoxically increases the efficacy of systemic herbicides by accelerating the movement of active ingredients. Meanwhile, soil-active herbicides like fluometuron offer a climate-resilient weed management strategy. Future studies should incorporate molecular approaches to fully elucidate these mode-of-action-specific physiological responses under changing climatic conditions. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.