Data/hora: 11/06/2024 18:19:46

Provedor de dados: | 53
País: | Brazil
Título: | Sunki mandarin and Swingle citrumelo as rootstocks for rain-fed cultivation of late-season sweet orange selections in northern São Paulo state, Brazil
Autores: | Girardi,Eduardo Augusto; Cerqueira,Thales Sandoval; Cantuarias-Avilés,Tatiana Eugenia; Silva,Simone Rodrigues da; Stuchi,Eduardo Sanches.
Data: | 2017-12-01
Ano: | 2017
Palavras-chave: | Citrus sinensis. C. sunki; [C. paradisi × Poncirus trifoliata]; Drought tolerance; Fruit quality; Production.
Resumo: | ABSTRACT In Brazilian regions affected by the citrus sudden death disease, sweet orange cultivation depends on the use of resistant rootstocks. Rangpur lime was mainly replaced by Swingle citrumelo and Sunki mandarin rootstocks, more drought-sensitive ones. The diversification of scion selections is also desirable aiming at the increasing demand for not from concentrate orange juice (NFC) that requires high-quality fruits. In this work, we evaluated the performance of 6 selections of Valencia (IAC, Dom João, Late Burjasot IVIA 35-2, Rhode Red SRA 360, Temprana IVIA 25 and Campbell) and Natal IAC sweet oranges grafted onto Swingle citrumelo and Sunki mandarin. The planting occurred in 2001 under rain-fed cultivation in Bebedouro, northern São Paulo state, Brazil. The outline was made through randomized blocks in a 7 × 2 factorial design (selections × rootstock), with 4 replications and 2 trees in unit. Both rootstocks performed well in the region. Sunki mandarin rootstock induced greater tree size and production per plant to the scion selections, 38 and 21%, respectively, plus higher precocity of production compared to Swingle citrumelo. The later determined a greater productive efficiency, as well as a greater percentage of juice in general, albeit with lower concentrations of soluble solids and acidity. Natal IAC, Valencia IAC and Rhode Red Valencia selections presented a higher accumulated production, on average, 218.6 kg∙plant−1 (2004 – 2008), and a higher productive efficiency (kg fruit∙m−3 of canopy) due to their smaller tree size. All assessed selections produced fruits with high soluble solids content that were suitable for juice processing.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000400501
Editor: | Instituto Agronômico de Campinas
Relação: | 10.1590/1678-4499.2016.350
Formato: | text/html
Fonte: | Bragantia  v.76 n.4 2017
Fonte: | info:eu-repo/semantics/openAccess