Wheat prices on Euronext saw a slight increase this Monday due to concerns over Black Sea supply, driven by sowing delays in Russia and potential export restrictions. However, rain showers in France could delay sowing and harvesting, causing further worries. In contrast, corn prices experienced a decline due to a US market trend and revised production potential from the USDA. This, along with reduced global wheat consumption, led to an increase in wheat prices and a decrease in corn prices for future deliveries on Euronext.