Performance of ‘Valência’ sweet orange grafted on trifoliate orange hybrid rootstocks

Abstract The objective of this work was to evaluate tree size, production, and fruit quality ‘Valência’ sweet orange (Citrus sinensis) grafted on various trifoliate rootstocks, in order select genotypes with a high performance. Twenty rootstock were evaluated, including hybrids mandarin (citrandarins) grapefruit (citrumelos), as well ‘Rangpur’ lime. experiment implemented the northwestern region state Paraná, Brazil, 6.0×2.5 m spacing, sandy soil under subtropical rainfed conditions. statistical model used randomized complete block design four replicates trees per plot. Tree size yield analyzed during three consecutive harvest seasons. Data subjected analysis variance, means grouped by Scott-Knott test. Principal component agglomerative hierarchical clustering also carried out. F.80-18, F.80-5, F.80-3 citrumelos IPEACS-239 citrandarin are adequate options for orange, dwarf production efficiency. These except obtain oranges good industrial properties.