Four-year elevated atmospheric CO(2) increases soybean seed yield and reshapes fatty acid composition without consistently altering crude oil content.
Four-year elevated atmospheric CO2 increases soybean seed yield by 18-54% and alters oil composition without consistently changing crude oil content.
- Why it matters: Understanding long-term effects of elevated CO2 on soybean oil traits is crucial for predicting future crop productivity and oil quality under climate change conditions.
- What they did: A four-year open-top chamber experiment examined seed yield, oil content, and fatty acid profiles in two soybean cultivars, revealing consistent yield increases and variable oil composition changes.
- The result: Elevated CO2 boosts soybean yield significantly and modifies fatty acid ratios, enabling potential yield gains while highlighting complex, trait-specific impacts on oil quality.