Evaluation of important characteristics of selected varieties of the world hop collection
1997
Rigr, A. | Nesvadba, V. | Beranek, F. (Chmelarsky Institut, Zatec (Czech Republic))
The world collection of hop varieties kept in Hop Research Institute in Zatec is a part of hop gene pool. It comprises 289 varieties form all the world. Those with the highest productivity content of alpha acids (Hallertau Magnum, Yeoman, Galena) usually have a high yield of hops or high content of alpha acids in dry-matter. The lowest rate of variability of these characteristics accompanied by a favourable structure or hop resins was found out in the Yeoman variety. A lack of farnesene and later maturation are the common characteristics of the most productive genotypes. Lower productivity was confirmed together with a favourable structure of bitter acids if aroma and fine-aroma hops were studied. The time of maturation is a common feature which can be characterized as semi-early to semi-late. Another important characteristic is the structure of essential oils, predominantly of farnesene.
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