[Ripening evolution and quality indexes in giant blueberry [Vaccinium]]

acide organique acidi organici blueberries calidad chromatographie en phase gazeuse color colore colour couleur epoca di raccolta fructosa fructose fruttosio gas chromatography gascromatografia glucosa glucose glucosio harvesting date maduramiento maturazione dei prodotti mirtilli myrtille organic acids quality refractometrie refractometry rifrattometria ripening saccarosio saccharose sucrosa sucrose vaccinium variedades varieties