Barley varieties registered in the Czech Republic after the harvest 2022

(ENG/CZ)

Authors

  • Vratislav Psota Research Institute of Brewing and Malting, Mostecká 971/7, 614 00 Brno, Czech Republic
  • Olga Dvořáčková Central Institute for Supervising and Testing in Agriculture, National Plant Variety Office, Hroznová 63/2, 656 06 Brno, Czech Republic
  • Markéta Musilová Research Institute of Brewing and Malting, Mostecká 971/7, 614 00 Brno, Czech Republic
  • Rastislav Boško Research Institute of Brewing and Malting, Mostecká 971/7, 614 00 Brno, Czech Republic

DOI:

https://doi.org/10.18832/kp2023.69.726

Keywords:

barley, variety, malting quality

Abstract

After the 2022 harvest, seven new varieties of malting barley were registered in the Czech Republic. After three years of testing, spring barley varieties Ambiana, Gingko, Kimberly, KWS Thalis, LG Ludvik, LG Rhapsody and RGT Proxima were registered. Based on the results obtained, LG Ludvik was recommended for the production of beer with the protected geographical indication 'České pivo'. This variety showed low activity of proteolytic and cytolytic enzymes and low level of final attenuation. The other spring barley varieties (Ambiana, Gingko, Kimberly, KWS Thalis, LG Rhapsody and RGT Proxima) gave sweet wort with extract content in malt dry matter ranging from 82.6 to 84.6%. The varieties Ambiana, Gingko, LG Rhapsody and RGT Proxima had extract contents of more than 83%. Proteolytic modification was high (Kolbach Index above 50%) in the varieties Gingko, LG Rhapsody and RGT Proxima. The β-glucan content in sweet wort below 100 mg/l was recorded in the varieties Gingko and LG Rhapsody. Cell wall degradation (friability 85–94%) and final attenuation
(81.7–83.0%) were at optimum levels in Ambiana, Gingko, Kimberly, KWS Thalis, LG Rhapsody and RGT Proxima. Gingko, Kimberly and LG Rhapsody always produced clear sweet wort. Low to zero lipoxygenase activity was found in KWS Thalis.

References

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Illustration image - barley-malt-wort-beer

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Published

2023-04-15

How to Cite

Psota, V., Dvořáčková, O., Musilová, M., & Boško, R. (2023). Barley varieties registered in the Czech Republic after the harvest 2022: (ENG/CZ). KVASNY PRUMYSL, 69(2), 726–739. https://doi.org/10.18832/kp2023.69.726
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