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vol.39 número5RESISTÊNCIA DE NOVOS HÍBRIDOS DE CITROS À MANCHA MARROM DE ALTERNARIAA CYCLE OF ORGANIC FERTILIZATION OF CASHEW TREES IMPROVES THE YIELD AND QUALITY OF THE PRODUCTS índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Fruticultura

versão impressa ISSN 0100-2945versão On-line ISSN 1806-9967

Resumo

BACAR, ELÍDIO LILIANO CARLOS et al. ‘JAFFA’ SWEET ORANGE PLANTS GRAFTED ONTO FIVE ROOTSTOCKS. Rev. Bras. Frutic. [online]. 2017, vol.39, n.5, e-200.  Epub 18-Dez-2017. ISSN 0100-2945.  http://dx.doi.org/10.1590/0100-29452017200.

Low genetic diversity of citrus scion and rootstock cultivars makes the crop more vulnerable to diseases and pests. The objective of this study was to evaluate the performance of ‘Jaffa’ sweet orange grafted onto five rootstocks over six harvests in subtropical conditions in the north of Paraná state, Brazil. The experiment used a randomized block design, with six replications and two trees per plot, spaced at 7.0 m x 4.0 m. The rootstocks were: ‘Rangpur’ lime, ‘Cleopatra’ and ‘Sunki’ mandarins, ‘Fepagro C-13’ citrange, and ‘Swingle’ citrumelo. The variables evaluated were vigor, yield, and yield efficiency of the trees as well as the physical and chemical characteristics of the fruits. Data were subjected to analysis of variance, complemented by Scott-Knott test at 5% probability. The smallest tree canopy for ‘Jaffa’ sweet orange plants was induced by the ‘Rangpur’ lime rootstock. The trees had the same cumulative yield performance over six seasons for all rootstocks. The best yield efficiency for ‘Jaffa’ sweet orange trees was provided by ‘Fepagro C-13’ citrange rootstock. With regard to fruit quality, no differences were observed among the rootstocks and the ‘Jaffa’ sweet orange fruits met the standards required by the fresh fruit market and the fruit processing industry.

Palavras-chave : Citrus sinensis; agronomic characteristics; fruit quality; fruit yield.

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