Study of the Effects of Pre-harvest Sprouting on the Storability and 1 Malting Quality of Three Canadian Malting Barley Varieties
نویسندگان
چکیده
10 Variations in the germination and malting performance during storage of three Canadian 11 malting barley varieties AC Metcalfe, CDC Kendall and CDC Copeland, which had 12 suffered from different degrees of pre-harvest sprouting damage (PHSD) at harvest, 13 were examined. These barley samples were collected in Saskatchewan, Canada during 14 two successive crop years (2007-2008). During storage significant changes in 15 germination energy and water sensitivity for all PHSD barley samples were recorded; 16 the higher the degree of PHSD the more variations in germination energy and water 17 sensitivity were observed. Barley samples stored at higher temperatures showed more 18 variations than those samples stored at lower temperatures. Difference between 19 varieties in germination energy and water sensitivity and their interactions with storage 20 conditions were also recorded. In malting trials, at steep the barley samples with higher 21 degrees of PHSD showed faster water uptake and obtained lower chitting rates than 22 samples with lower PHSD or samples devoid of PHSD. Barley samples with a high 23 degree of PHSD stored at higher temperatures exhibited lower chitting rates than 24 samples with the same degree of PHSD stored at lower temperatures. Some varietal 25 differences in water uptake and chitting rate were also recorded. The trial results 26 suggested that germination energy, water sensitivity and malting performance were all 27 sensitive to PHSD and storage conditions. 28
منابع مشابه
The Application of Microsatellite Analysis in Barley Malting Quality Breeding Programmes
Leišová-Svobodová L., Tomková L., Sedláček T., Psota V., Kučera L. (2014): The application of microsatellite analysis in barley malting quality breeding programmes. Czech J. Genet. Plant Breed., 50: 268–277. A set of 43 microsatellite loci was used to characterise the malting barley varieties and breeding lines used for the Protected Geographical Indication (PGI) “České pivo” (“Czech beer”) and...
متن کاملRedox-dependent interaction between thaumatin-like protein and β-glucan influences malting quality of barley.
Barley is the cornerstone of the malting and brewing industry. It is known that 250 quantitative trait loci (QTLs) of the grain are associated with 19 malting-quality phenotypes. However, only a few of the contributing genetic components have been identified. One of these, on chromosome 4H, contains a major malting QTL, QTL2, located near the telomeric region that accounts, respectively, for 28...
متن کاملVisual Quality Evaluation of Malting Barley with Use of Neural Image Analysis
The quality evaluation is one of the most important stages of the production processes. The same as regards the beer production and its components: hop, yeast, malting barley and other ingredients. Presented project deals with the complex quality evaluation of malting barley used for malt production. Its main goal is to elaborate complete methodology for the identification of varieties, the lev...
متن کاملتأثیر فرآیند مالتسازی بر خصوصیات فیزیکوشیمیایی و آئرودینامیکی دو لاین جو استان گلستان
Malting is one of the biotechnological processes that includes steeping, germination and killing of cereal. This process is performed in controlled environment in which hydrolytic enzymes are synthesized and cell wall, protein and starch of endosperm are largely digested. In this study the malting quality was evaluated in order to select the best line for malt production. The effects of malting...
متن کامل