Kvasny Prum. 2014; 60(2): 31-37 | DOI: 10.18832/kp2014004

Post harvest maturation of the selected spring barley varieties in 2008-2011.Peer-reviewed article

Lenka SACHAMBULA, Vratislav PSOTA
VÚPS, a. s., Sladařský ústav, Mostecká 7, 614 00 Brno

In 2008-2011 a total set of nine malting barley varieties (Aksamit, Aktiv, Blaník, Bojos, Kangoo, Radegast, Sebastian, Tolar, and Xanadu) was assessed. Three weeks after achieving full maturity, the value of germination energy moved around the average level of 88.6 % during testing. The tested varieties exhibited considerable differences, this trait varied in the range of 42-100%. The highest average values of germination energy three weeks after achieving full maturity were detected in the varieties Aktiv, Kangoo, Sebastian, and Xanadu, differing thus statistically significantly from all other varieties in the set. The value of parameters describing intensity of germination, i.e. germination rate and index, gradually increased and 12 weeks after achieving full maturity it was at the level of 78.6%, the value of the germination index was 6.8. The effect of the variety on germination rate gradually decreased and, conversely, the effect of the year grew. Germination index showed a similar trend. This trait in the ninth and twelfth weeks after achieving full maturity is affected by year from 30% and the environment from 30%.In 2008-2011 a total set of nine malting barley varieties (Aksamit, Aktiv, Blaník, Bojos, Kangoo, Radegast, Sebastian, Tolar, and Xanadu) was assessed. Three weeks after achieving full maturity, the value of germination energy moved around the average level of 88.6 % during testing. The tested varieties exhibited considerable differences, this trait varied in the range of 42-100%. The highest average values of germination energy three weeks after achieving full maturity were detected in the varieties Aktiv, Kangoo, Sebastian, and Xanadu, differing thus statistically significantly from all other varieties in the set. The value of parameters describing intensity of germination, i.e. germination rate and index, gradually increased and 12 weeks after achieving full maturity it was at the level of 78.6%, the value of the germination index was 6.8. The effect of the variety on germination rate gradually decreased and, conversely, the effect of the year grew. Germination index showed a similar trend. This trait in the ninth and twelfth weeks after achieving full maturity is affected by year from 30% and the environment from 30%.

Keywords: dormancy, barley variety, germination energy, germination rate, weather conditions, locality

Received: August 5, 2013; Accepted: October 6, 2013; Published: February 1, 2014 

References

  1. Basařová, G. (ed.), 1992: Pivovarsko-sladařská analytika 1. Merkanta, Praha.
  2. Benech-Arnold, R. L., 2002: Bases of pre-harvest sprouting resistance in barley: Physiology, molecular biology and environmental control of dormancy in barley grain. In: Barley science. Recent advances from molecular biology to agronomy of yield and quality. Food Product Press. New York.
  3. Bewley, J. D., Black M., 1982: Physiology and Biochemistry of Seeds in Relation to Germination. Vol. 2 Viability. Dormancy and Environmental Control. Springer - Verlag, Berlin. Go to original source...
  4. Cochrane, M. P., 1993: Effects of temperature during grain development on the germinability of barley grains. Aspects Appl. Biol. 36.
  5. EBC Analysis Committee, 2009: Analytica-EBC, Verlag Hans Carl Getränke-Fachverlag, Nürnberg.
  6. Lišková, M., Frančáková, H., 2012: Význam dormancie jačmeňa sladovníckeho na kvalitatívne parametre sladu. Slovenská poľnohospodárska univerzita, Nitra: 72.
  7. Psota, V., Šusta, J., Kosař, K., 1998: Homogenita a modifikace sladu II. Klíčení zrna, chuť piva. Kvasny Prum. 44: 126-129. Go to original source...
  8. Psota, V., Šebánek, J., 1999: Role fytohormonů v klíčení a sladování. Studijní Informace. Mimo řady, ÚZPI, Praha.
  9. Kastner, J., 1976: Zpracování sladů s vysokým obsahem bílkovin. Závěrečná zpráva 12/15. VÚPS Brno.
  10. Kastner, J., 1977: Zpracování ječmenů a sladů s vysokým obsahem bílkovin. Závěrečná zpráva 12/2, VÚPS Brno.
  11. Kastner, J., 1979: Vliv odrůdy na délku posklizňového dozrávání se zvláštním zřetelem na výhledové odrůdy. Urychlení posklizňového dozrávání ječmenů. Dílčí zpráva 3b/2, VÚPS Brno.
  12. Riis, P., Meiling, E., Peetz, J., 1995: Determination of germinative percentage and germination index - collaborative trial and ruggedness testing, J. Inst. Brew., 101(3): 171-175. Go to original source...
  13. Sponton, B. W., Jacobsen, J. V., Sherkat, F., Start, I. M., 2005: Changes in germination and malting quality during storage of barley. J. Inst. Brew., 111(1): 33-41. Go to original source...

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