African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6839

Full Length Research Paper

Harvest timing and nitrogen fertilization alter the production of biomass and antioxidant compound in the parsley

Mylena Firmiano de Andrade
  • Mylena Firmiano de Andrade
  • Pharmaceutical Sciences, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Luiziene Soares Alves
  • Luiziene Soares Alves
  • Department of Chemistry (PPGQ), Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Evandro Silva P. Costa
  • Evandro Silva P. Costa
  • Institute of Agronomy, Department of Phytotechnics, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Marco Andre Alves de Souza
  • Marco Andre Alves de Souza
  • Laboratory of Plant Biochemistry, Department of Biochemistry, Institute of Chemistry, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Rosane Nora Castro
  • Rosane Nora Castro
  • Department of Organic Chemistry, Institute of Chemistry, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Douglas Siqueira de Almeida Chaves
  • Douglas Siqueira de Almeida Chaves
  • Department of Pharmaceutical Science, Institute of Biological Sciences and Health, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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Andre Marques dos Santos
  • Andre Marques dos Santos
  • Laboratory of Plant Biochemistry, Department of Biochemistry, Institute of Chemistry, Universidade Federal Rural do Rio de Janeiro (UFRRJ), Brazil.
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  •  Received: 24 March 2022
  •  Accepted: 17 February 2023
  •  Published: 31 May 2023

Abstract

Parsley is a plant widely used in cooking as a condiment and it has potential for pharmaceutical use due to flavonoids production, including the apiin, which has antioxidant activity. The current study investigates the influence of N fertilization on the biomass production, soluble fractions, total flavonoids and apiin in the parsley plants at 28 and 56 days after germination (DAG). The experiment was carried out in the greenhouse under different N levels: nitrogen free (control), 10 kg N ha-1 (10 kg N ha-1 at planting, without cover application of N) and 70 kg N ha-1 (10 kg of N ha-1 at planting and 60 kg of N ha-1 in cover). The biomass production and soluble fractions was influenced by harvest timing and nitrogen fertilization. The total flavonoid levels were lower at 56 DAG under the N fertilization effect. The highest levels of apiin were detected at 28 DAG in treatments with N fertilization. Thus, the harvest time at 28 DAG and N fertilization with 10 kg ha-1 yielded the highest apiin concentration and, therefore, less production time and costs with N fertilization.

Key words: Petroselinum crispum, soluble fractions, nitrate, flavonoids, Apiin, Apiaceae