Volta

Does Climate Change Alter Weed Management Recommendations? Evaluating the Impact of Elevated CO 2 on Plant Growth and the Critical Period of Weed Control

ABSTRACT Climate change challenges crop production, driving rising temperatures and extreme weather events. Additionally, increased atmospheric CO 2 alters competitive dynamics between crops and weeds. While previous research has examined individual plant responses to elevated CO 2 , its direct impact on weed management recommendations remains understudied. To address this knowledge gap, we assessed how elevated CO 2 influences the critical period of weed control (CPWC). Using radish ( Raphanus sativus L.) as a model crop with dual use of above‐ and belowground parts for consumption and Fagopyrum esculentum Moench (buckwheat) as a model weed, we conducted growth chamber experiments evaluating CO 2 driven shifts in plant growth and CPWC duration. Elevated CO 2 increased radish root biomass while shoot …

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