Agronomic and chemical evaluation of hop cultivars grown under Mediterranean conditions

Spanish Journal of Agricultural Research

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Field Value
 
Title Agronomic and chemical evaluation of hop cultivars grown under Mediterranean conditions
 
Creator Afonso, Sandra
Arrobas, Margarida
Rodrigues, M. Ângelo
 
Subject Agriculture; Plant production (field and horticultural crops)
Humulus lupulus; aroma; bitter acids; cone yield; cone quality
 
Description Aim of study: Evaluation of the agronomic performance and chemical profile of four hop cultivars grown under Mediterranean conditions.Area of study: The study was undertaken in Bragança, north-eastern Portugal.Material and methods: The newly introduced cultivars (‘Columbus’, ‘Cascade’ and ‘Comet’) were compared with the well-stablished ‘Nugget’. The field experiment was carried out between 2017 and 2019. Dry matter (DM) yield (plant and cones), tissue elemental composition and bitter acid and nitrate (NO3-) concentrations in the cones were assessed.Main results: ‘Comet’ was the most productive cultivar with the highest total DM yield (1,624 to 1,634 g plant-1), cone yield (572 to 633 g plant-1), and dry weight of individual cones (0.28 to 0.79 g cone-1). ‘Cascade’ showed the lowest average total DM yield (723 to 1,045 g plant-1). The year affected the average values of DM yield and the concentration of bitter acids in the cones, with ‘Cascade’ showing the highest sensitivity between cultivars. The concentrations of α and β-acids in the cones were within or close to the normal ranges internationally accepted for all cultivars. ‘Columbus’ exhibited the highest levels of α-acids, ranging between 12.04 % and 12.23%, followed by ‘Nugget’ (10.17–11.90%), ‘Comet’ (9.32–10.69%) and ‘Cascade’ (4.46–8.72%). The nutrient accumulation criteria in cone and leaf tissues seem to be a differentiating factor between cultivars with influence on bitter acid biosynthesis and biomass production.Research highlights: All cultivars showed notable performance in terms of DM yield and bitter acid concentration in the cones when compared to international standards.
 
Publisher Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
 
Contributor FCT (Portugal) and ERDF-CIMO (UID/AGR/00690/2019)
(BD/116593/2016)
 
Date 2021-08-12
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://revistas.inia.es/index.php/sjar/article/view/17528
10.5424/sjar/2021193-17528
 
Source Spanish Journal of Agricultural Research; Vol 19, No 3 (2021); e0904
Spanish Journal of Agricultural Research; Vol 19, No 3 (2021); e0904
2171-9292
 
Language eng
 
Relation https://revistas.inia.es/index.php/sjar/article/view/17528/5253
https://revistas.inia.es/index.php/sjar/article/downloadSuppFile/17528/18862
 
Rights info:eu-repo/semantics/openAccess
Copyright (c) 2021 Spanish Journal of Agricultural Research
 

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