Paclobutrazol in the flowering management affects the quality of Malpighia emarginata fruits

Authors

  • Erivan dos Santos Sousa Federal University of Piauí/Department of Agricultural Science
  • Jackson Teixeira Lobo Federal University of Paraíba/Agricultural Sciences Campus
  • Daniel de Almeida Carreiro Universidade Federal do Vale do São Francisco
  • Dayanne do Nascimento Dias Federal University of São Francisco Valley/Agricultural Sciences Campus
  • Luciana Guimarães Sanches Federal University of São Francisco Valley/Agricultural Sciences Campus
  • Ítalo Herbert Lucena Cavalcante Federal University of São Francisco Valley/Agricultural Sciences Campus

Abstract

Floral management using the growth regulator paclobutrazol may be an alternative for promoting the uniformity of flowering and fruiting in West Indian cherry (Malpighia emarginata D.C.) plants. However, the effects of its use on fruit quality are still unknown. This study aimed to evaluate the effect of paclobutrazol doses on the fruit quality of M. emarginata. The experimental design was randomized blocks, in a 2 x 5 factorial arrangement, with three replications and three plants per plot, with the studied factors consisting of two M. emarginata cultivars (‘Junko’ and ‘Flor Branca’) and five paclobutrazol doses (0, 0.4, 0.8, 1.2 and 1.6 g a.i. m-1 of canopy diameter). The following variables were evaluated: fruit mass, fruit transverse and longitudinal diameters, pH, soluble solids content, titratable acidity, soluble solids/titratable acidity ratio and vitamin C content. The use of paclobutrazol, to some extent, promoted the increase of fruit mass, longitudinal diameter and soluble solids contents. The ‘Junko’ cultivar presented a higher vitamin C content than that for ‘Flor Branca’, and the maximum vitamin C contents were obtained with the paclobutrazol doses of 0.64 and 0.81 g a.i. m-1, respectively for the ‘Junko’ and ‘Flor Branca’ cultivars. None of the studied factors promoted differences for pH and fruit acidity.

KEYWORDS: West Indian cherry, floral induction, growth regulator.

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Published

2020-07-31

How to Cite

DOS SANTOS SOUSA, E.; TEIXEIRA LOBO, J.; DE ALMEIDA CARREIRO, D.; DO NASCIMENTO DIAS, D.; GUIMARÃES SANCHES, L.; HERBERT LUCENA CAVALCANTE, Ítalo. Paclobutrazol in the flowering management affects the quality of Malpighia emarginata fruits. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 50, p. e62805, 2020. Disponível em: https://revistas.ufg.br/pat/article/view/62805. Acesso em: 24 nov. 2024.

Issue

Vol. 50 (2020)

Section

Research Article

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