SciELO - Scientific Electronic Library Online

 
vol.26 número1Comportamento da pitangueira (Eugenia uniflora L) sob irrigação na região do vale do Rio Moxotó, PernambucoDistribuição do sistema radicular da goiabeira 'Rica' produzida a partir de estaquia herbácea índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Fruticultura

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

Resumo

ROBERTO, Sérgio Ruffo et al. Cluster maturation of 'Rubi' table grape girdled on different periods. Rev. Bras. Frutic. [online]. 2004, vol.26, n.1, pp.180-182. ISSN 0100-2945.  http://dx.doi.org/10.1590/S0100-29452004000100048.

This work was an attempt to evaluate the trunk girdling effect on different periods to hasten the maturation of 'Rubi' table grape in the northwest of Parana state, Brazil. The following treatments were studied: Control without girdling; Girdling when total soluble solids (TSS) of berries ranged from 5-6 ºBrix; Girdling when TSS of berries ranged from 7-8 ºBrix; and Girdling when TSS of berries ranged from 9-10 ºBrix. A randomized block design with four treatments and five replications was used as an statistical model, and each plot was composed by one plant. Girdling consisted of removing a narrow ring of bark entirely round of the trunk using a double-bladed 3.1 mm knife, 1.5 m far from the ground. Total soluble solids and titratable acidity (TA) were evaluated weekly through berries samples collection, from the establishment of the experiment up to its harvesting. Through regression analysis, it was estimated the advanced fruit ripening period of each treatment considering the index of maturity TSS/TA = 20. The highest period of advanced fruit ripening was observed when girdling was realized when TSS of berries ranged from 5-6 ºBrix, i.e., 8 days. There was no difference in relation to the cluster and berry physico-characteristics between treatments.

Palavras-chave : Vitis vinifera; grapevine; soluble solids; titratable acidity.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons