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Quality Characters and Identification of Breeding Materials in Malting Barley  

오세관 (영남농업시험장)
현종내 (영남농업시험장)
서득용 (영남농업시험장)
서세정 (작물시험장)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.48, no.3, 2003 , pp. 184-190 More about this Journal
Abstract
Germplasms and breeding lines of malting barley at National Yeongnam Agricultural Experiment Station (NYAES) were evaluated for malting barley quality improvement. Among the numerous malting barley quality parameters, the mean of protein content was 12.3% between 10.7% to 14.0% and range of the $\beta$-glucan content was from 3.5% to 5.8%, the mean was 4.6 percent. The length of acrospire, non-germination rate, friability, the speed of filtration, extract yield, kolbach index, diastatic power were significantly different between the individual varieties, however the other traits were not significantly different. The results of correlation analysis among 15 quality parameters showed significant positive correlation between crude protein content and malt protein content. However, other quality parameters such as sugar content, fiablity, extract yield, and kolbach index had negative correlation with crude protein content. Therefore, crude protein content could be one of the major factors that deteriorate quality. The varieties of Viva, Nishino-chikara, Kinukei 9, Kinukei 12, Sacheon 6 and Jinyangbori that showed over the 80% in extract yield and the higher diastatic power, will be used by crossing parents for improve the quality of malting barley.
Keywords
Malting barley; Malt quality; Breeding material; Malt extract; Protein; $\beta$-glucan; Acrospire; friability; kolbach index; diastatic power;
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