Resistance to the rose-grain aphid (Metopolophium dirhodum (Walk.)) in non-glaucous spring barley

Abstract

Abstract A non-glaucous leaf variant of a spring barley (Hordeum vulgare L.) breeding line was shown to support significantly fewer rose-grain aphids (Metopolophium dirhodum (Walk.)) than did cv. Triumph or glaucous-leaf variants of the same line. Aphid resistance in the non-glaucous line was associated with reduced immigration by winged rose-grain aphids.