Agronomic and chemical evaluation of hop cultivars grown under Mediterranean conditions

Aim of study: Evaluation the agronomic performance and chemical profile four hop cultivars grown under Mediterranean conditions.Area The study was undertaken in Bragança, north-eastern Portugal.Material methods: newly introduced (‘Columbus’, ‘Cascade’ ‘Comet’) were compared with well-stablished ‘Nugget’. field experiment carried out between 2017 2019. Dry matter (DM) yield (plant cones), tissue elemental composition bitter acid nitrate (NO3-) concentrations cones assessed.Main results: ‘Comet’ most productive cultivar highest total DM (1,624 to 1,634 g plant-1), cone (572 633 dry weight individual (0.28 0.79 cone-1). showed lowest average (723 1,045 plant-1). year affected values concentration acids cones, showing sensitivity cultivars. ? ?-acids within or close normal ranges internationally accepted for all ‘Columbus’ exhibited levels ?-acids, ranging 12.04 % 12.23%, followed by ‘Nugget’ (10.17–11.90%), (9.32–10.69%) (4.46–8.72%). nutrient accumulation criteria leaf tissues seem be a differentiating factor influence on biosynthesis biomass production.Research highlights: All notable terms when international standards.