Combined effect of high temperature and drought on yield and malting quality of barley

Ivan Bohačenko, Vratislav Psota, Jiří Hartmann and Markéta Musilová
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Ivan Bohačenko: Food Research Institute Prague, Prague, Czech Republic
Vratislav Psota: Research Institute of Brewing and Malting, Brno, Czech Republic
Jiří Hartmann: National Plant Variety Office, Central Institute for Supervising and Testing in Agriculture, Brno, Czech Republic
Markéta Musilová: Research Institute of Brewing and Malting, Brno, Czech Republic

Czech Journal of Food Sciences, 2021, vol. 39, issue 1, 17-22

Abstract: Spring barley varieties Tolar and Marthe were grown under the standard conditions and stress conditions with a combined effect of high temperature and drought in three experiments conducted in the greenhouse of phytotron type. The results showed that growing under the stress conditions led to reduced yield, grain quality and malt quality. This effect was observed both in the individual years and on average for the entire study period. Average yield of grain declined by ca 53% and retention above 2.5 mm screen decreased by ca 28% (P = 0.001). Further, average content of proteins rose by 3.7% while starch content decreased by 5.1% (P = 0.01). In malt samples, average extract and friability were reduced by 5.8% and 15%, respectively, and average protein content increased by 3.8% (P = 0.01). The growing conditions were a dominant factor in the conducted experiments.

Keywords: grain quality; abiotic stress; malt quality (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:39:y:2021:i:1:id:146-2019-cjfs

DOI: 10.17221/146/2019-CJFS

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