Transfer of the hop (Humulus lupulus L.) alpha-bitter acid content to progenies of F1 and I1 generations in selected parental components

Abstract

In the period 1999-2001 the transfer of a-acid content from selected parents to their progenies was evaluated. Four female plants (English varieties Target and Yeoman, German variety Magnum and Czech variety Premiant) and four male plants from the gene resources of male hops (82/6, 86/4, 87/3, clone 72) were chosen as the initial material. Progenies of F1 generation of Magnum and Yeoman show significantly higher a-acid content compared to the progenies of other female hops. Progenies of F1 generation of male plants 86/4 and 87/3 show significantly higher a-acid content compared to the progenies of other male plants. Progenies of I1 generation of Magnum variety and male 86/4 contain the highest amount of a-acids. Progenies of F1 generation have higher a-acid content at the 99% probability level compared to the progenies of I1 generation. Progenies of both generations show nearly the same variability.

Keywords

• hops
• humulus lupulus l.
• progenies
• f1 generation
• i1 generation
• a-bitter acids