This research evaluated, in Londrina, PR, Brazil, ‘Folha Murcha' orange trees on the rootstocks: ‘Caipira' orange (Citrus sinensis (L.) Osb.), ‘Rangpur' lime (Citrus limonia Osb.), ‘Sunki' mandarin (Citrus sunki Hort. ex Tan.), ‘Florida' rough lemon (Citrus jambhiri Lush.), ‘Cleopatra' mandarin (Citrus reshni Hort. ex Tan.), and ‘Volkamer' lemon (Citrus volkameriana Ten. & Pasq.). The experimental design was used as randomized blocks with six rootstocks as treatments, five replications and three plants per plot. Height, diameter, and canopy volume were significantly higher in trees budded on ‘Caipira' orange, when compared with those budded on ‘Volkamer' lemon. The smallest difference between trunk diameters below/above the bud occurred in trees on ‘Rangpur' lime and ‘Sunki' mandarin. Cumulative yield was superior for trees on ‘Rangpur' lime and ‘Caipira' orange, without showing statistical difference between themselves, but were significantly different from those on ‘Cleopatra' mandarin and ‘Volkamer' lemon. Yield efficiency was not influenced by the studied rootstocks. Fruit weight was significantly higher for trees on ‘Sunki' mandarin, compared to those on ‘Rangpur' lime, ‘Florida' rough lemon, and ‘Volkamer' lemon. Total soluble solids (TSS) showed high contents in fruits of ‘Folha Murcha' orange on ‘Volkamer' lemon and on ‘Rangpur' lime, without differences between themselves. Total titratable acidity (TTA), (TSS/TTA) ratio, and juice color were not influenced by the rootstocks tested. ‘Rangpur' lime and ‘Volkamer' lemon provided significantly higher technological index values in relation to the other rootstocks. The juice quality parameters evaluated were within the acceptable standards for orange canopy varieties.
Citrus sinensis; canopy volume; fruits weight; fruits technological index
