Physico-chemical characterization of orange fruits on different rootstocks
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The objective of this study was to evaluate the physico-chemical characteristics of fruits of 58 sweet orange tops cultivars on four rootstocks, namely: ‘Sunki Tropical’ mandarin and ‘Trifoliata’ Citrandarin ‘San Diego’, ‘Riverside’ and ‘Indio’. For this purpose, a completely randomized experimental design was used, in a factorial scheme (58 x 4). The characteristics analyzed were: equatorial diameter, fruit mass, peel thickness, number of seeds, soluble solids, titratable acidity, Ratio and juice yield. All the characteristics analyzed were influenced by both the tops cultivar and the rootstock, demonstrating that both factors interfere in the physi-cochemical quality of the fruits. The tops ‘Pera D-3’, ‘Pera Olimpia’, ‘Pera Bianchi’, ‘Jaffa’ and ‘Westin’ on all rootstocks evaluated showed characteristics in their fruits with soluble solids greater than 10 ºBrix, Ratio above 9.5 and juice yield greater than 45%, characteristics that define fruits with quality standards. Also, the tops ‘Pera Olimpia’, ‘Sincorá’ and ‘Westin’ on the rootstock ‘Sunki Tropical’, ‘Pera D-3’, ‘Pera D-25’, ‘Sincorá’, ‘Aquiri’ and ‘Russas P.S.’ on the rootstock ‘San Diego’, ‘Pera C-32’, ‘Pera D-3’, ‘Pera D-6’, ‘Pera E-6’, ‘Pera Bianchi’, ‘Pera CE-03 ‘, ‘Salustiana’ and ‘Westin’ on ‘Riverside’ rootstock are suitable for the juice production industry with Ratio between 14 and 16 and juice yield greater than 50%. It is also worth noting that the tops ‘Crescent’, ‘Natal Folha Murcha’, ‘Valencia Midknight’ and ‘Valencia Delta’ produced fruits without seeds on all rootstocks.
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Citrus spp, cultivars, fruit quality, Genetical diversity
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Inglês
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Revista Brasileira de Fruticultura, v. 45.
