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Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967

Abstract

BASSOI, LUÍS HENRIQUE; GRANGEIRO, LEILSON COSTA; SILVA, JOSÉ ANTONIO MOURA E  and  SILVA, EMANUEL ELDER GOMES DA. Root distribution of irrigated grapevine rootstocks in a coarse texture soil of the São Francisco Valley, Brazil. Rev. Bras. Frutic. [online]. 2002, vol.24, n.1, pp.35-38. ISSN 0100-2945.  http://dx.doi.org/10.1590/S0100-29452002000100008.

An experiment was carried out to determine the root distribution of four grapevine rootstocks (Salt Creek, Dogridge, Courdec 1613, IAC 572) in a coarse texture soil of a commercial growing area in Petrolina County, São Francisco Valley, Brazil. Rootstocks were grafted to a seedless table grape cv. Festival, and irrigated by microsprinkler. Roots were quantified by the trench wall method aided by digital image analysis. Results indicated that roots reached 1 m depth, but few differences among rootstocks were found. All of them presented at least 90 % of the roots distributed until 0.6 m depth, with a greater root presence in the first 0.4 m. The upper 0.6 m can be taken into account as the effective rooting depth for soil and water management.

Keywords : grapevine; root system; digital image analysis.

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