Ceres was the Roman goddess of agriculture and grain.
Ceres governed grain crops, farming, fertility, and the cultivated earth. Her name became closely associated with grain and bread, and she was credited in Roman tradition with teaching humanity agriculture, including the sowing and cultivation of wheat. She was the Roman counterpart of the Greek goddess Demeter.
Ceres was especially important in the plebeian Aventine Triad, alongside Liber and Libera, and she was the only major Roman agricultural deity included among the Dii Consentes, Rome’s group comparable to the Twelve Olympians. Her central festival, the Cerealia, took place in April and included public games.
Her best-known myth concerns the abduction of her daughter Proserpina. Ceres’s grief caused the earth to become barren, while Proserpina’s periodic return explained the seasonal cycle. Tellus was the earth goddess and Ops represented abundance, so both are related to agriculture, but Ceres is the clearest canonical answer for agriculture and grain.