Resumo

PAVLOVIC, Martin  e  PAVLOVIC, Viljem. Model evaluation of quality attributes for hops (Humulus lupulus L.). Agrociencia [online]. 2011, vol.45, n.3, pp.339-351. ISSN 2521-9766.

Hops (Humulus lupulus L.) ate vital fot the brewing industry, as they contribute significantly to the organoleptic qualities of beet, including taste and flavor. Experimental hop breeding data from the Slovenian Institute of Hop Research and Brewing (IHPS) were used to create a model based on the multi-attribute decision modeling methodology. The model has 18 attributes hierarchically grouped within four main attributes: Biology, Chemistry, Morphology and Brewing value. Furthermore, utility functions in the model were defined by sets of elementary decision rules throughout the entire hierarchy for all aggregated attributes. The central part of the model contains 144 decision rules, which were specified according to the model users' previous breeding experiences. Four prospective hop hybrids and a reference hop variety with the target characteristics of plant resistance and brewing value were evaluated. Based on the breeding experiences and model results attributes' assessments were carried out. Decisions based on the model evaluation offered an additional tool for experts' final decisions in selecting appropriate materials for further breeding or the commercial use of hop plants.

Palavras-chave : hop industry; breeding; decision-making; model; IHPS.

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