The main grains showed mixed behavior at the opening of the markets this Friday, August 29. According to TF Agroeconômica, wheat is operating at a slight decline in the United States, pressured by the entry of the abundant Northern Hemisphere crop and the good weather conditions that accelerate the harvest in the American Great Plains, in addition to positive prospects for Australia and Argentina. In Brazil, wheat prices vary: CEPEA Paraná records R$ 1,408.30 (+0.25% on the day, -4.67% on the month) and CEPEA Rio Grande do Sul R$ 1,288.81 (-0.45% on the day, -0.76% on the month). Argentina and Paraguay present quotations of US$ 222 to US$ 250 per sack, depending on the region and quality of the grain.