AC Hamilton is a six-rowed spring feed barley (Hordeum vulgare L.) cul
tivar bred at the Plant Research Centre, Agriculture and Agri-Food Can
ada, and evaluated by the Eastern Canada Barley Breeding Group. It was
selected from a Leger/OAC Kippen cross and is suitable for growing in
Ontario, where it outyielded the check cultivars AC Stephen and Chapa
is. AC Hamilton is moderately resistant to powdery mildew (Erysiphe gr
aminis f. sp. hordei) and is resistant to septoria leaf blotch (Septor
ia passerinii).