African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Irrigation under different soil surface wetted areas and water depths for banana cv. Grand Naine

Eugênio Ferreira Coelho
  • Eugênio Ferreira Coelho
  • Agricultural Engineering, Embrapa Mandioca e Fruticultura, C.P. 07, Cruz das Almas, BA, Brazil.
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Marcelo Rocha dos Santos
  • Marcelo Rocha dos Santos
  • Agricultural Engineering, Instituto Federal Baiano Campus Guanambi, C.P 009. Zona Rural, Distrito de Ceraíma, Guanambi, BA, Brazil.
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Édio Luis da Costa
  • Édio Luis da Costa
  • Agricultural Engineering, Universidade Federal de São João Del-Rei, Campus de Sete Lagoas. Rod. MG 424 - km 47, CEP: 35701970 - Sete Lagoas, MG, Brazil.
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Sérgio Luiz Rodrigues Donato
  • Sérgio Luiz Rodrigues Donato
  • Agricultural Engineering, Instituto Federal Baiano Campus Guanambi, C.P 009. Zona Rural, Distrito de Ceraíma, Guanambi, BA, Brazil.
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Polyanna Mara Oliveira
  • Polyanna Mara Oliveira
  • Agricultural Engineering, Epamig Norte. Rodovia MGT 122 km 155, Zona Rural, CEP: 39527-000 Nova Porteirinha – MG, Brazil.
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  •  Received: 20 July 2016
  •  Accepted: 17 August 2016
  •  Published: 08 September 2016

Abstract

The use of different water depths and soil surface soil surface wetted areas by micro-sprinkler irrigation systems results different wetted soil volumes and evapotranspiration conditions, which may cause changes in fruit production quality and quantity. The objective of this study was to evaluate yield, fruit physical characteristics and leaf area of ​​banana cv. Grand Naine under different irrigation depths and soil surface wetted areas in Northern Minas Gerais State, Brazil. The experiment was conducted in the period 2003 to 2006, involving three production cycles of 'Grand Naine' banana with planting spacing of 3.0 m × 2.7 m irrigated by micro-sprinklers. The experimental design was a randomized block with four replicates in a split-plot arrangement with three soil surface wetted areas in the plot and five irrigation depths as subplots. The irrigation levels were taken as fractions of crop evapotranspiration (ETc): 0.70; 0.85; 1.00; 1.15 and 1.30 ETc, and the soil surface wetted areas (Wa) were: Wa 1 of 10.17 m2, with emitter of 20 L h-1 and radius of throw of 1.8 m; Wa 2 of 23.74 m2, with emitter of 63.6 L h-1 and radius of throw of 2.7 m and Wa 3 of 28.26 m2, with emitter of 60 L h-1 and radius of throw of 3.0 m. Central fruit diameter and mean weight, leaf area and yield of 'Grand Naine' banana were not influenced by irrigation depths. On the other hand, smaller soil surface wetted area causes reduction in central fruit length and weight, leaf area and yield of 'Grand Naine' banana.

Key words: Musa spp., irrigation management, soil surface wetted area.