Physico-chemical characterization of new hybrids pineapple resistant to fusariosis/Caracterizacao fisico-quimica de novos hibridos de abacaxi resistentes a fusariose

Five pineapple genotypes (Gold, Perola, Smooth Cayenne, BRS Vitoria and BRS Imperial and four new hybrids-SC x PRI-21, SC48 x PRI-02, PE x SC-73 and PA x PE-01), were evaluated for their physicochemical characteristics. The 'Gold' cultivar presented the highest contents of total carotenoids (7.82mg [g.sup.-1]) and vitamin C (51.0mg 100[g.sup.-1]), whereas the 'BRS' Imperial stood out for its high levels of reducing (5.12%) and total (15.23%) sugars, soluble solids (18.41°Brix), pH (3.96) and ratio (35.28). Improved hybrids SC 48 x PRI-02, PE x SC-73 and PA x PE-01 had the soluble solids, reducing and total sugars contents higher than those of cultivars 'Smooth Cayenne', 'BRS Vitoria ' and 'Perola', highlighting the 'PE x SC-73' hybrid for its pulp of intense yellow color, high sweetness, high content of total carotenoids and vitamin C and which was considered as a promising hybrid to replace commercial cultivars. Key words: vitamin C, total carotenoids, color, Ananas comosus var. Comosus. Cinco genotipos de abacaxi (Gold, Perola, Smooth Cayenne, BRS Vitoria, BRS Imperial) e quatro novos hibridos (SC x PRI-21, SC48 x PRI-02, PE x SC-73 e PA x PE-01) foram avaliados quanto as suas caracteristicas fisico-quimicas. A cultivar 'Gold'apresentou os maiores teores de carotenoides totais (7,82µg [g.sup.-1]) e vitamina C (51,0mg 100[g.sup.-1]), enquanto que a cultivar 'BRS' Imperial destacou-se pelos elevados teores de acucares redutores (5,12%), acucares totais (15,23%), solidos soluveis (18,41°Brix), pH (3,96) e ratio (35,28). Os hibridos SC 48 x PRI-02, PEx SC-73 e PA x PE-01 apresentaram teores de solidos soluveis, acucares totais e redutores superiores aos das cultivares Smooth Cayenne, Perola e BRS Vitoria, destacando-se o hibrido PE x SC-73 por apresentar polpa amarela mais intensa, docura elevada, elevado teor de carotenoides totais e vitamina C, sendo, portanto, um hibrido promissor para substituicao de cultivares comerciais. Palavras-chave: vitamina C, carotenoides totais, cor, Ananas comosus var. Comosus.