The Home-Grown Cereals Authority (HGCA) was the British organisation that promoted the UK arable industry — funding research into wheat, barley, oats, and oilseeds, and providing market intelligence, agronomy advice, and export support to cereal and oilseed growers. Financed by a statutory levy on farmers and processors, it translated science into farm practice: variety trials, disease forecasting, grain storage guidance, and nutrition research on bread and cereals. It also co-funded consumer education, including the Flour and Grain Education Program. The HGCA was later absorbed into the Agriculture and Horticulture Development Board (AHDB), but its model — levy-funded, industry-directed research — shaped how British arable farming innovates.