AC Stewart oat

Abstract

AC Stewart oat (Avena sativa L.) is a spring-type cultivar suitable for the feed, food (milling) and mixed grain (oat and barley) industries in Ontario. This variety combines high grain yield, large kernel size, early maturity and strong straw with disease resistance required for production in Ontario. AC Stewart is very similar in plant type and barley yellow dwarf resistance to its recurrent parent Ogle and, in addition, possesses genes conferring resistance to loose smut (Ustilago avenae (Pers.) Rostr.) and to prevalent races of crown rust (Puccinia coronata Pers. f. sp. avenae Eriks. and E. Henn.) and some prevalent races of stem rust (Puccinia graminis Pers. f. sp. avenae Eriks. and E. Henn.) in Ontario.Key words: Avena sativa L., rust, smut and BYDV resistance, cultivar description, oat