A New Naked Barley Cultivar, “Cheongho” with Resistance to Viral Disease and Powdery Mildew

Abstract

The six rowed and naked barley cultivar, “Cheongho” (Hordeum vulgare L.), showing earliness, good cooking quality,resistance to powdery mildew and barley yellow mosaic virus disease (BaYMV), winter hardiness, lodging tolerance, and highthe cross between “Naehanssalbori” and “Shigoku 51”. Naehanssabori has a high yield with large grain, winter hardiness, andlodging tolerance, while Shigoku 51 has a good cooking quality, winter hardiness, and lodging tolerance. A promising line3,after being selected from the advanced yield trial, was given to the line to be submitted to the Regional Yield Trials at seven loca-tions for three years from 2002 to 204, showing superior resistance to powdery mildew and barley yellow mosaic viruses,thick culm, six-rowed erect and medium kernel density of spike. It has 81 cm of culm length, 4.9 cm of spike length, 61 in grainnumber per spike, 606 in spike number/m2gho” were April 20 and May 27 in paddy field, respectively, which were similar to those of check variety. This new varietyshowed resistance especially to powdery mildew in three tested sites and also to Barley yellow mosaic virus (BaYMV) in the threesites among four tested sites. Coking quality of this variety was similar to the check cultivar Sassalbori in protein and β-glucancontents, water absorption rate, expansibility and whiteness of pearled grain. The average grain yield of “Cheongho” in theregional yield trials was 4.86 ton/ha in upland field, and 3.45 ton/ha in pady field.