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Revista Brasileira de Fruticultura
On-line version ISSN 1806-9967
TAZIMA, Zuleide Hissano et al. Fruit production and quality of sweet orange cultivars in northern Paraná state, Brazil . Rev. Bras. Frutic. [online]. 2009, vol.31, n.2, pp. 474-479. ISSN 1806-9967. http://dx.doi.org/10.1590/S0100-29452009000200022.
The aim of this work was to characterize sweet orange [Citrus sinensis (L.) Osbeck] accessions from the IAPAR Active Citrus Germplasm Bank (AGB Citrus) in Londrina, Paraná, Brazil. The accessions studied were: I-02 'Piralima', I-03 'Barão', I-11 'Natal', I-16 'Hamlin', I-17 'Seleta Vermelha', I-60 'Natal', I-67 budded on Rangpur lime (Citrus limonia Osbeck). The plants had 7.0 m x 7.0 m spacing, and were carried out without irrigation. Data of yield (from 1983 to 1997) and fruit physical-chemical characteristics (from 1984 to 2000), like fruit mass (FM), total soluble solids (TSS), total titratable acidity (TTA), ratio (TSS/TTA), juice content and technological index (TI) were submitted to ANOVA and the means were compared by the Tukey´s test (5%). I-16 'Hamlin' accession had the highest yield (218.1 kg per plant), and it was different from the others. Accessions I-17 'Seleta Vermelha' and I-11 'Natal' had the highest fruit mass (209 and 142 g, respectively), with no difference between them. The accessions had similar results regarding fruit chemical characteristics, and had acceptable values regarding quality standards, except I-17 'Seleta Vermelha', which had TI lower than 2.0 kg.box-1 of SST.
Keywords : Citrus sinensis; active germplasm bank; yield; fruit quality.