‘Nokyang’, Whole Crop Forage Barley Cultivar with the Stay-Green Character, Resistance to Viral Disease and High-Yielding

Abstract

Nokyang (Hordeum vulgare L.), a new whole-crop silage barley cultivar, was developed by the breeding team at the Department of Rice and Winter Cereal Crop, National Institute of Crop Science, RDA, Korea in 2012. It was derived from combining Nagyoung and breeding line SB77368-B-145. Among the combinations made in 2001, a promising line, SB01T2017, showed good characteristics in terms of potential forage yield in the yield trial at Iksan from 2007 to 2009. In 2009, the promising line was designated as Iksan457 and placed in regional yield trials at six locations around Korea for three years from 2010 to 2012, and was released under the name of Nokyang. It has the growth habit of a group III creeping plant type, with a light-green leaf and common spike. Its average heading and maturing dates were on May 6 and June 4, respectively, which were later than cultivar Youngyang. Nokyang also showed strong winter hardiness, and a resistance to shattering and barley yellow mosaic virus (BaYMV) similar to those of the check cultivar. The best thing among the traits of one is a new good quality with the plant green at the latter growing period. The average forage dry matter (DM) yields in the regional yield trial were about 12.8 and 11.5 MT in upland and paddy field, respectively, which were higher than those of the check cultivar, by 7% and 2%, respectively. This cultivar would be suitable for an area of the Korean peninsula where the daily minimum temperature in January is above .