African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Productivity and quality of watermelon as function of phosphorus doses and variety

Francisco das Chagas Goncalves
  • Francisco das Chagas Goncalves
  • Post-Graduation Program in Agronomy, Universidade Federal Rural do Semi-Árido, city of Mossoró, State of Rio Grande do Norte, Brazil.
  • Google Scholar
Valdivia de Fatima Lima Sousa
  • Valdivia de Fatima Lima Sousa
  • Post-Graduation Program in Agronomy, Universidade Federal Rural do Semi-Árido, city of Mossoró, State of Rio Grande do Norte, Brazil.
  • Google Scholar
Jose Novo Junior
  • Jose Novo Junior
  • Post-Graduation Program in Agronomy, Universidade Federal Rural do Semi-Árido, city of Mossoró, State of Rio Grande do Norte, Brazil.
  • Google Scholar
Leilson Costa Grangeiro
  • Leilson Costa Grangeiro
  • Department of Plant Sciences, Universidade Federal Rural do Semi-Árido, City of Mossoró, State of Rio Grande do Norte, Brazil.
  • Google Scholar
Jose Francismar de Medeiros
  • Jose Francismar de Medeiros
  • Department of Plant Sciences, Universidade Federal Rural do Semi-Árido, City of Mossoró, State of Rio Grande do Norte, Brazil.
  • Google Scholar
Arthur Bernardes Cecilio Filho
  • Arthur Bernardes Cecilio Filho
  • Department of Plant Sciences, Universidade Estadual Paulista, City of Jaboticabal, State of São Paulo, Brazil.
  • Google Scholar
Saulo de Tarcio Pereira Marrocos
  • Saulo de Tarcio Pereira Marrocos
  • Instituto Federal de Educação, Ciência e Tecnologia do Amapá, Campus Porto Grande, City of Macapá, State of Amapá, Brazil.
  • Google Scholar


  •  Received: 15 August 2016
  •  Accepted: 20 October 2016
  •  Published: 03 November 2016

Abstract

Although watermelon is one of the major vegetable-fruit crop, management fertilization still lacks information for increased productivity, quality and profitability, and to lower environmental impact. An experiment was conducted in Mossoró, Brasilian city of Rio Grande do Norte, from August to October 2012, to evaluate the effects of doses of phosphorus (P) (0, 45, 90, 135, 180 and 225 kg ha-1 P2O5) in productivity, quality and profitability of two cultivars of watermelon cultivation (Top Gun and Olympia), in a randomized blocks in a factorial 6 × 2, with four replications. Larger number of commercial fruits (1.70 per plant) and commercial yield (74.39 t ha-1) were obtained with 54.8 and 49.4 kg ha-1 P2O5, respectively. Attributes of quality of watermelon fruit were not influenced by P. Dose between cultivars differences were found, and 'Olympia' had higher fruit mass and skin thickness than the 'Top Gun'. However, the soluble solids content of the 'Top Gun' was 4.9% higher than the Olympia. The maximum economic return was achieved with a dose of 49.37 kg ha-1 of P2O5.

 

Key words: Citrullus lanatus, phosphate fertilizer, production cost.