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Abstract

Registration of 'Royal' barley.

Abstract

This blue-aleurone, six-row barley cultivar (PI576855), released in 1994, has the pedigree Morex/Bonanza//M32/3/Robust/4/Azure, with all 4 cultivars in the pedigree having performed well in Minnesota. Royal averages about 20 cm shorter than Robust at maturity, with the short stature trait being derived from M32 whose pedigree traces back to Jotun which carries the short stature gene sdw. This trait contributes to the standability of Royal, which is superior to that of Robust and enhances its potential as a forage-companion crop and feed-grain cultivar. In trials at 2 Minnesota locations in 1992 and one location in 1993, Royal gave average neutral-detergent fibre, acid-detergent fibre and acid-detergent lignin concentrations of 47, 28 and 3%, respectively, compared with 51, 32 and 4% for conventional height Robust when harvested at the soft dough stage. Forage dry matter yield of Royal averaged 11.1 t/ha in 2 trials and forage crude protein concentration averaged 9% in 3 trials, these values being similar to Robust. Grain yield in 12 Minnesota trials was 5.1 t/ha for Royal and 4.5 t/ha for Robust; however, in 9 regional trials grain yields averaged 4.1 and 4.3 t/ha, respectively. Royal possesses the ND B112 gene for resistance to Bipolaris sorokiniana [Cochliobolus sativus] and the Rpg1 gene which conditions resistance to current races of Puccinia graminis f.sp. tritici except race QCC.