A new six-rowed and covered barley cultivar, 'Dahyang' with lodging resistance, high-yield and good quality.

摘要

Dahyang, a new 6-rowed and covered barley cultivar, was developed from the cross between Milyang26//(Bera-Olbori/Hobhisee-Buheung)/Ben-gi and Samcheok 86-226 in Korea republic, in 2005. Among the crosses made in 1994, a promising line that showed both high yield and lodging resistance in yield trials conducted in Suwon, Korea Republic, in 2002, was designated as Suwon 393. It performed well in regional yield trials at 5 locations in Korea Republic, from 2003 to 2005, and was released as Dahyang. It pertained to the growth habit of III and has characteristics of erect plant type, green leaves and stems that was similar to the control cultivar Olbori, and compact spikes with long rough awns. Its heading date was April 27 in upland areas, and April 20 in paddy field areas. The maturing time was May 31 and May 22, which were 2 and one day earlier, respectively, than that of Olbori. The new cultivar Dahyang had a culm length of 85 cm and a spike length of 4.1 cm. It had 676 spikes per m2, 51 grains per spike, a 1000-grain weight of 32 g and a test weight of 669 g. Dahyang showed weaker winter hardiness, but better lodging tolerance and Barley yellow mosaic virus resistance than those Olbori. Seed storage protein content, beta -glucan contents and pearled grain rate were similar to Olbori. Dahyang showed higher sensory scores for barley tea than that of the control cultivar. The average yield of the pearled grain in the regional yield trial was 4.64 MT/ha in upland areas and 4.46 MT/ha in paddy fields, which was 14 and 16% higher than those of Olbori, respectively. This cultivar could be suitable for the area above the daily minimum temperature of -8 degrees C in January in the Korean peninsula..