scholarly journals Genetic variation among selected pure lines from Turkish barley landrace ‘Tokak’ in yield-related and malting quality traits

2021 ◽  
Vol 19 (4) ◽  
pp. e0702-e0702
Author(s):  
Ibrahim Saygili ◽  
Keyword(s):  
Amylase Activity ◽  
Alpha Amylase ◽  
Malting Quality ◽  
Malt Extract ◽  
Quality Traits ◽  
Malting Barley ◽  
Glucanase Activity ◽  
Beta Glucanase ◽  
Barley Landrace ◽  
Thousand Seed Weight

Aim of study: Improvement of barley cultivars for malting traits suffers from narrow genetic pool in barley for these traits. Landraces are resources that could be used for this purpose. The present study was conducted to determine the variation for malting quality traits within a Turkish barley landrace. Area of study: The study was undertaken in Tokat, a province in Black Sea Region of Turkey. Material and methods: Twenty-five diverse lines, out of 42 unique genotypes previously identified in ‘Tokak’ landrace (PI 470281) based on DNA markers, were evaluated for malting quality traits along with the malting barley cv. ‘Tokak 157/37’ in four field trials. Thousand-seed weight, test weight, grain yield, lodging, malt extract percentage, diastatic power, alpha amylase and malt beta glucanase activities, malt protein and starch contents were determined. Main results: Principal component analysis of malting quality traits revealed that thousand-seed weight, alpha amylase activity, beta glucanase activity and diastatic power were the most discriminatory traits for the lines. As the average of four trials, 15 of the 25 lines evaluated had higher grain yields and 10 of 25 lines had higher malt extract percentages than the standard cultivar ‘Tokak 157/37’. Malt extract was highest in Line 59 in all environments, and this line also had the highest values for beta glucanase activity and starch content. Line 215 had highest values for alpha amylase activity. Lines 59 and 215 clearly had superior malting quality. Research highlights: These lines could harbor novel alleles for these traits to be used in malting barley improvement.

COMPARISON OF HILL AND ROW PLOTS FOR AGRONOMIC AND QUALITY TRAITS IN SPRING MALTING BARLEY (Hordeum vulgare L.)

1990 ◽  
Vol 70 (1) ◽  
pp. 61-69 ◽  
Author(s):  
S. TRAGOONRUNG ◽  
P. M. HAYES ◽  
B. L. JONES
Keyword(s):  
Hordeum Vulgare ◽  
Recurrent Selection ◽  
Agronomic Traits ◽  
Malting Quality ◽  
Quality Traits ◽  
Malting Barley ◽  
Seeding Rate ◽  
Hordeum Vulgare L ◽  
Hill Plot ◽  
Hill Plots

Provided they reliably predict row plot performance, hill plots should be useful for doubled haploid recurrent selection in malting barley (Hordeum vulgare L.). The primary objective of this research was to compare hill and row plot expression of agronomic and malting quality traits in an array of elite spring habit barley germplasm grown under irrigated conditions. A supporting objective was to identify an appropriate seeding rate for hill plot evaluation. Eight-replicate hill plots at four seeding rates (10, 20, 30, and 40 seeds per hill) were compared with adjacent four-replicate row plots in each of three environments. Genotype and genotype × environment interactions were significant for most agronomic traits in both plot types. Significant, linear genotype responses to hill plot seeding rates were observed for most agronomic traits. Seeding rate had no consistent effect on the expression of malting quality. The percentage of lines in common in the two plot types at 25 and 50% selection intensities was the most useful comparison statistic and indicated hill plot selection should be effective for most agronomic and malting quality traits. Although yield heritability estimates were consistently high in both hill and row plots, there was little relationship between trait expression in the two plot types. Differential tillering in response to hill plot competition is likely responsible. A seeding rate of 10 seeds per hill should be appropriate in preliminary screening for traits amenable to hill plot selection in irrigated spring habit malting barley.Key words: Hordeum vulgare L., malting quality, breeding methods, barley

scholarly journals Problems and possibilities of studying malting quality in barley using molecular genetic approaches

2021 ◽  
Vol 25 (2) ◽  
pp. 171-177
Author(s):  
N. V. Trubacheeva ◽  
L. A. Pershina
Keyword(s):  
Molecular Markers ◽  
Genome Wide Association Study ◽  
Molecular Genetic ◽  
Amino Nitrogen ◽  
Malting Quality ◽  
Malt Extract ◽  
Quality Traits ◽  
Effective Strategies ◽  
Barley Grains ◽  
Growing Conditions

About one-third of the world’s barley crop is used for malt production to meet the needs of the brewing industry. In this regard, the study of the genetic basis of malting quality traits and the breeding of malting barley varieties that are adaptive to their growing conditions are relevant throughout the world, particularly in the Russian Federation, where the cultivation and use of foreign malting varieties of barley prevails. The main parameters of malting quality (artificially germinated and dried barley grains) are malt extract, diastatic power, Kolbach index, viscosity, grain protein, wort β-glucan, free amino nitrogen, and soluble protein content. Most of these components are under the control of quantitative trait loci (QTLs) and are affected by environmental conditions, which complicates their study and precise localization. In addition, the phenotypic assessment of malting quality traits requires elaborate, expensive phenotypic analyses. Currently, there are more than 200 QTLs associated with malting parameters, which were identified using biparental mapping populations. Molecular markers are widely used both for mapping QTL loci responsible for malting quality traits and for performing marker-assisted selection (MAS), which, in combination with conventional breeding, makes it possible to create effective strategies aimed at accelerating the process of obtaining new promising genotypes. Nevertheless, the MAS of malting quality traits faces a series of difficulties, such as the low accuracy of localization of QTLs, their ineffectiveness when transferred to another genetic background, and linkage with undesirable traits, which makes it necessary to validate QTLs and the molecular markers linked to them. This review presents the results of studies that used MAS to improve the malting quality of barley, and it also considers studies that searched for associations between genotype and phenotype, carried out using GWAS (genome-wide association study) approaches based on the latest achievements of high-throughput genotyping (diversity array technology (DArT) and single-nucleotide polymorphism markers (SNPs)).

scholarly journals Breeding Malting Barley under Stress Conditions in South America

2011 ◽  
Vol 40 (No. 4) ◽  
pp. 140-147 ◽  
Author(s):  
E. Germán S
Keyword(s):  
Grain Size ◽  
South America ◽  
Grain Yield ◽  
Leaf Rust ◽  
Production Efficiency ◽  
Malting Quality ◽  
Malt Extract ◽  
Malting Barley ◽  
Net Blotch ◽  
Early Maturity

The annual average area sown with barley (Hordeum vulgare) in South America during 1999–2003 was 795 000 ha. In Argentina, Brazil, Chile and Uruguay, two-rowed spring cultivars are used mostly for malt production. Research has been developed in private malting companies and official institutions supported by the industry. In Argentina, tolerance to drought and heat stress during grain filling are important in drier areas. Yield and malt extract had been improved in cultivars released from 1940 to 1998. In Brazil, progress in grain yield, grain size, malting quality, early maturity, and resistance to net blotch, powdery mildew, and leaf rust has been achieved by EMBRAPA and malting companies. Higher tolerance to soil acidity and resistance to spot blotch are required. Since 1976, malting barley breeding in INIA-Chile has improved grain yield, grain size, beer production efficiency, and resistance to scald, net blotch, stripe rust, and leaf rust. Uruguay produces high quality malt exported mainly to Brazil. Malting companies have released locally bred and introduced cultivars since the early 1970’s. Initiated in 1988, INIA-Uruguay breeding program has improved yield, malting quality, and lodging and disease resistance. Fusarium head blight is a new challenge for research in Brazil and Uruguay. Information regarding malting barley production, the most important stresses in different areas of production, and breeding progress under South American conditions is provided.  

scholarly journals Mapping and QTL analysis of the barley population Chebec × Harrington

2003 ◽  
Vol 54 (12) ◽  
pp. 1125 ◽  
Author(s):  
A. R. Barr ◽  
A. Karakousis ◽  
R. C. M. Lance ◽  
S. J. Logue ◽  
S. Manning ◽  
...  
Keyword(s):  
Cyst Nematode ◽  
Cereal Cyst Nematode ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Malting Barley ◽  
Breeding Programs ◽  
Genomic Location ◽  
Haploid Population ◽  
Barley Population

A doubled haploid population of 120 individuals was produced from the parents Chebec, an Australian 2-row barley of feed quality with resistance to the cereal cyst nematode, and Harrington, a 2-rowed, Canadian variety of premium malting quality. This paper describes 18 field and laboratory experiments conducted with the population and summarises the traits mapped and analysed. The genomic location of 25 traits and genes is described and marker–trait associations for 5 traits (malt extract, diastatic power, resistance to cereal cyst nematode, early flowering, resistance to pre-harvest sprouting) important to Australian efforts to improve malting barley varieties have been used in practical breeding programs. Detailed maps for these populations are shown in this paper, while a consensus map incorporating these maps and further experiments on the populations are described elsewhere in this issue.

QTL analysis of malting quality traits in two barley populations

2007 ◽  
Vol 58 (9) ◽  
pp. 858 ◽  
Author(s):  
J. F. Panozzo ◽  
P. J. Eckermann ◽  
D. E. Mather ◽  
D. B. Moody ◽  
C. K. Black ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Amylase Activity ◽  
Water Extract ◽  
Hot Water ◽  
Quality Analysis ◽  
Malting Quality ◽  
Quality Traits ◽  
Breeding Programs ◽  
Diastatic Power ◽  
Hot Water Extract

Selection for malting quality traits is a major breeding objective for barley breeding programs. With molecular markers linked to loci affecting these traits, this selection can be undertaken at an earlier stage of the breeding program than is possible using conventional tests. Quantitative trait loci (QTLs) associated with malting quality traits were mapped in 2 populations derived from parents with elite malting quality. Progeny from an Arapiles/Franklin population grown in 4 environments and an Alexis/Sloop population grown in 5 environments were tested for grain protein percentage, α-amylase activity, diastatic power, hot water extract, wort viscosity, wort β-glucan, β-glucanase, and free α-amino acids. QTL analysis was performed using a one-stage approach, which allowed for modelling of spatial variation in the field, and in each phase of the malting quality analysis in the laboratory. QTLs for malting quality traits were detected on all chromosomes and for both populations. Few of these QTLs were significant in all of the environments, indicating that QTL × environment interactions were important. There were many coincident QTLs for traits that are expected to be related such as diastatic power and α-amylase activity, wort β-glucan and wort viscosity and for some traits that are not expected to be related such as hot water extract and malt viscosity.

scholarly journals Quality test for the breeding of malting barley in relation to alpha-amylase activity.

1984 ◽  
Vol 34 (3) ◽  
pp. 263-272 ◽  
Author(s):  
Tadao SEKIGUCHI ◽  
Genkichi TAKEDA ◽  
Kazumi KAWAGUCHI
Keyword(s):  
Amylase Activity ◽  
Alpha Amylase ◽  
Malting Barley ◽  
Quality Test

NEAR-INFRARED REFLECTANCE ESTIMATES OF GRAIN PROTEIN AND MALT EXTRACT IN HILL AND ROW PLOT EVALUATIONS OF SPRING MALTING BARLEY

1990 ◽  
Vol 70 (1) ◽  
pp. 71-78 ◽  
Author(s):  
S. TRAGOONRUNG ◽  
P. M. HAYES ◽  
S. L. BROICH
Keyword(s):  
Recurrent Selection ◽  
Near Infrared ◽  
Malting Quality ◽  
Grain Protein ◽  
Malt Extract ◽  
Infrared Reflectance ◽  
Malting Barley ◽  
Near Infrared Reflectance ◽  
Hill Plot ◽  
Calibration Equations

Expensive, time-consuming analyses can limit selection responses for grain protein and malt extract in a malting barley improvement program. Alternative breeding strategies, such as doubled haploid recurrent selection, rapidly produce more genotypes than can be evaluated in conventional plots. Prior to implementing a doubled haploid recurrent selection program for malting quality we sought to test the utility of hill plot evaluation and near-infrared reflectance (NIR) prediction for grain protein and malt extract. Five- and six-wavelength calibration equations were generated for prediction of grain protein and malt extract, respectively. The multiple correlation coefficient of the protein equation (0.96) was higher than that of the malt extract equation (0.88). Calibration equations for both traits based on separate locations and spike classes (two-row vs. six-row) were less robust than the multiple environment, combined equations. The grain protein and malt extract equations had acceptable predictive power for both row and hill plot samples. However, in view of differential trait expression in hill and row plots, NIR prediction based on hill plot evaluation is appropriate for grain protein. NIR prediction of malt extract is best deferred until genotypes are evaluated in row plots.Key words: Malting quality, NIR, hill plots, barley

Cerveza barley

2013 ◽  
Vol 93 (3) ◽  
pp. 557-564 ◽  
Author(s):  
W. G. Legge ◽  
J. R. Tucker ◽  
B. Bizimungu ◽  
T. G. Fetch ◽  
S. Haber ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Hordeum Vulgare ◽  
Agronomic Traits ◽  
Malting Quality ◽  
Western Canada ◽  
Malt Extract ◽  
Malting Barley ◽  
Brewing Industry ◽  
Hordeum Vulgare L ◽  
Made In

Legge, W. G., Tucker, J. R., Bizimungu, B., Fetch Jr., T. G., Haber, S., Menzies, J. G., Noll, J. S., Tekauz, A., Turkington, T. K., Savard, M. E. and Choo, T. M. 2013. Cerveza barley. Can. J. Plant Sci. 93: 557–564. Ceveza is a doubled-haploid hulled two-row spring malting barley (Hordeum vulgare L.) cultivar widely adapted to western Canada, Quebec, and the Maritimes. Developed from the cross TR251/Newdale//TR253/Newdale made in 1998, Cerveza was evaluated in the Western Cooperative Two-row Barley Registration Test (2006–2007) and the Collaborative Malting Barley Trials (2007–2008) conducted by the malting and brewing industry before being registered in 2010. Cerveza was also evaluated in Quebec and the Maritimes in 2007–2009. Cerveza's desirable combination of agronomic traits, disease resistance and malting quality, particularly high grain yield and malt extract, should make it a useful cultivar for producers and the malting and brewing industry.

Coincident quantitative trait loci effects for dormancy, water sensitivity and malting quality traits in the BCD47×Baronesse barley mapping population

2010 ◽  
Vol 61 (9) ◽  
pp. 691 ◽  
Author(s):  
Ariel Julio Castro ◽  
Andrea Benitez ◽  
Patrick M. Hayes ◽  
Luis Viega ◽  
Les Wright
Keyword(s):  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Grain Filling ◽  
Malting Quality ◽  
Malt Extract ◽  
Quality Traits ◽  
Water Sensitivity ◽  
Trait Loci ◽  
Grain Filling Period ◽  
Qtl Effects

A degree of seed dormancy (SD) is required for malting barley varieties in Uruguay, and many other parts of the world, in order to prevent pre-harvest sprouting. Water sensitivity (WS) (a decrease in germination under excess water) is a related trait that can create problems at the malthouse. Both traits are affected by environmental conditions during grain filling. We used a population of 100 doubled haploid lines derived from the cross BCD47 × Baronesse to map quantitative trait loci (QTL) affecting SD, WS, and malting quality traits. Preliminary experiments revealed that BCD47 has low SD and Baronesse has high SD. WS for these accessions was not known before this research. A major SD QTL – detected in four experiments – is on chromosome 5H, with BCD47 contributing the low dormancy allele. Four other regions with QTL effects for SD were mapped, but these QTL were significant in data from only one or two environments. Four regions were detected with QTL effects for WS, but only two – in 5H coincident with the SD QTL, and 3H – were significant in more than one environment. SD and WS were affected by the average temperature at the end of the grain-filling period, with higher temperatures associated with lower values for SD. At the same region on 5H where SD and WS QTL were detected, we found significant QTL for malt extract, α-amylase activity, β-glucans, FAN, Kolbach index, wort turbidity and protein content, with BCD47 contributing favourable alleles for all traits. These results underscore the importance of environmental effects on both SD and WS as well as the difficulties of combining good malting quality with adequate levels of SD and WS.

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