Genetic relationships between preharvest sprouting and dormancy in barley

Ullrich, S. E.; Lee, H.; Clancy, J. A.; Blanco, Isabel A. del; Jitkov, Vadim A.; Kleinhofs, A.; Han, Feng; Prada, D.; Romagosa, I.; Molina-Cano, José Luis

doi:10.1007/s10681-009-9936-1

Cited by 26 publications

(24 citation statements)

References 25 publications

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“…WHATCOM was planted in the Everett complex gravelly, ashy, sandy loam soil (Soil Survey Staff, National Resource Conservation Service, USDA, 2015). After planting, the field was fertilized with urea (46-0-0) at 90 kg N ha -1 and the following herbicides were applied: Maestro 2EC at 1.75 L ha -1 ; Harmony Extra SG at 35 g ha -1 total product.…”

Section: Methods Trial Locations and Managementmentioning

confidence: 99%

“…ISLAND was planted in the Ebeys-Coupeville complex loam soil (Soil Survey Staff, National Resource Conservation Service, USDA, 2015). No in-season fertilizer was applied, and weeds were controlled using Base Camp MCP Ester (2-ethylhexyl ester of 2-methyl-4-chlorophenoxyacetic acid; Wilbur-Ellis Company, Fresno, CA) according to local grower practices.…”

Section: Methods Trial Locations and Managementmentioning

confidence: 99%

“…Quantitative trait loci (QTL) controlling malting quality and dormancy, which confers resistance to pre-harvest sprouting, are tightly linked (Ullrich et al, 2009;Castro et al, 2010;Jin et al, 2011). This association has complicated the development of malting barley cultivars resistant to pre-harvest sprouting and breeding for high levels of a-amylase may have inadvertently reduced resistance to pre-harvest sprouting (Lin et al, 2009;Edney et al, 2013).…”

Section: Core Ideasmentioning

confidence: 99%

“…Given the tight association between major malt quality and dormancy QTL, identification of cultivars which combine malt quality suitable for North American adjunct style brewing and resistance to pre-harvest sprouting has been a challenge for barley breeders (Ullrich et al, 2009;Castro et al, 2010;Jin et al, 2011;Edney et al, 2013). Malting cultivars developed in the United Kingdom commonly have a moderate degree of dormancy suggesting that combining resistance to pre-harvest sprouting with quality suitable for all-malt styles of brewing is an avenue that could be pursued by North American barley breeders selecting for high rainfall regions.…”

Section: Falling Number and Germinationmentioning

confidence: 99%

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Evaluating Barley for the Emerging Craft Malting Industry in Western Washington

et al. 2016

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Craft malting companies are emerging in response to demand from the rapidly growing North American craft brewing industry, and creating a market for malting barley (Hordeum vulgare L.) in production regions considered to be of minor importance for this crop. Growing malting barley in these under‐represented areas, such as western Washington, requires identification of cultivars with suitable agronomic and quality characteristics. Twelve two‐row spring barley cultivars were evaluated for 2 yr at four western Washington locations to assess suitability for craft malt production in the region. Standard North American malting cultivars had lower yield stability than locally adapted feed cultivars. Pre‐harvest sprouting reduced falling number and germination capacity resulting in a high proportion of samples unsuitable for malt quality evaluation. Cultivars with the highest levels of resistance to pre‐harvest sprouting did not meet malt quality standards when malted according to standard micro‐malting methods. However, craft maltsters have more flexibility to alter processing conditions to produce malt from cultivars previously deemed unacceptable for large‐scale malting and brewing. Craft brewer specifications for malt are also different from large‐scale industry. The current work suggests the need to adjust the malting process to work with locally adapted cultivars while expanding regional testing and breeding programs. Demand for barley for craft malt production outside of major production regions is increasing. Standard North American malting barley cultivars are susceptible to preharvest sprouting and foliar pathogens common in nontraditional growing regions such as western Washington. To meet demand for craft breweries the emerging craft malting industry will need to find ways to work with locally adapted cultivars while expanding regional testing and breeding programs.

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Section: Methods Trial Locations and Managementmentioning

confidence: 99%

Section: Methods Trial Locations and Managementmentioning

confidence: 99%

Section: Core Ideasmentioning

confidence: 99%

Section: Falling Number and Germinationmentioning

confidence: 99%

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Evaluating Barley for the Emerging Craft Malting Industry in Western Washington

et al. 2016

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“…On a worldwide scale, each year the losses caused by this phenomenon are estimated at about 1 billion dollars [1]. The mechanism of sprouting depends on cultivar, inflorescence structure and seed dormancy level [2][3][4][5]. These traits are controlled at a genetic level but may be changed by climatic factors, which particularly affect seed dormancy level.…”

Section: Introductionmentioning

confidence: 99%

Susceptibility of naked oat cultivars to seed sprouting

et al. 2014

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The production of economically important cereals is accompanied by the phenomenon of sprouting which in naked cultivars may limit their reproduction and usability. The objective of the work is to evaluate the susceptibility to sprouting in naked oat cultivars, and to test the usefulness of sprouting indices. In the years 2008–2010 for seeds of 8 cultivars, differing in the degree of sprouting damage, the coefficient of sprouting (Cs) was determined. Germinability (GF), dynamics (GD) and average germination time (GAT) were determined for seeds germinating in the presence of abscisic acid (ABA), gibberellic acid (GA3) and under control conditions. Basing on the falling number (FN) in consecutive days of the sprouting induction, alpha-amylase activity was determined. The highest values of Cs were found in 2008, the year with the highest total rainfall and temperature. In the presence of ABA the GF decreased by 21%, the GAT was 4.7 days longer, and the GD decreased by 55% compared with other substrates. An increase in alpha-amylase activity contributed to a 50%, on average, decrease in FN at 10°C and 30°C after 48 and 24 h of incubation, respectively. In the analyzed years the greatest resistance to sprouting was found for Bullion seeds.

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A connected half‐sib family training population for genomic prediction in barley

et al. 2020

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Genomic prediction accuracy is affected by population size, trait heritability, relatedness of training and validation populations, marker density, and genetic architecture. Nested association mapping (NAM) populations have advantages in many of these features compared with biparental families and may be an effective strategy for increasing prediction accuracy. The classic NAM design was modified to create a two‐row spring malting barley (Hordeum vulgare L.) population of 1341 F3:F4 lines in seven families that was phenotyped for heading date, plant height, leaf rust, spot blotch, pre‐harvest sprouting, and grain protein. Quantitative trait loci (QTL) were detected for plant height, leaf rust, pre‐harvest sprouting, and spot blotch with genome‐wide association analyses. Prediction accuracies were assessed in validation populations consisting of a single family or multiple families. Across‐family prediction accuracy (.607–.811) generally surpassed within‐family prediction accuracy, particularly for traits with high across‐family variance. Reductions in marker density (70–80%) and training population size (25–50%) did not cause significant loss of prediction accuracy. Addition of fixed marker effects from genome‐wide association had minimal impact on prediction accuracy in the full training population but improved accuracy in reduced training populations. Within‐family prediction for traits highly influenced by family structure was improved by adding half‐sibs to the training population. Connected half‐sib training populations could be useful for new and established breeding programs looking to implement genomic selection due to benefits of family structure on prediction accuracy, genotyping, genetic diversity, and genetic mapping.

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Genetic relationships between preharvest sprouting and dormancy in barley

Cited by 26 publications

References 25 publications

Evaluating Barley for the Emerging Craft Malting Industry in Western Washington

Evaluating Barley for the Emerging Craft Malting Industry in Western Washington

Susceptibility of naked oat cultivars to seed sprouting

A connected half‐sib family training population for genomic prediction in barley

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