Environment found to explain the largest variance in physical and compositional traits in malting barley grain

BACKGROUND Starch is the most abundant constituent (dry weight) in the barley endosperm, followed by protein. Variability of compositional and potentially related physical traits due to genotype and environment can have important implications for the malting and brewing industry. This was the first...

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Veröffentlicht in:Journal of the science of food and agriculture 2024-11, Vol.104 (14), p.8780-8790
Hauptverfasser: Ramanan, Maany, Gielens, Daan R. S., Schepper, Charlotte F., Courtin, Christophe M., Diepenbrock, Christine, Fox, Glen Patrick
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Sprache:eng
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Zusammenfassung:BACKGROUND Starch is the most abundant constituent (dry weight) in the barley endosperm, followed by protein. Variability of compositional and potentially related physical traits due to genotype and environment can have important implications for the malting and brewing industry. This was the first study to assess the effects of genotype, environment, and their interaction (G × E) on endosperm texture, protein content, and starch traits corresponding to granule size, gelatinization, content, and composition, using a multi‐environment variety trial in California, USA. RESULTS Overall, environment explained the largest variance for all traits (ranging from 23.2% to 76.5%), except the endosperm texture traits wherein the G × E term explained the largest variance (45.0–86.5%). Our unique method to quantify the proportion of fine and coarse milled barley particles using laser diffraction showed a binomial distribution of endosperm texture. The number of small starch granules varied significantly (P‐value
ISSN:0022-5142
1097-0010
1097-0010
DOI:10.1002/jsfa.13704