Plant growth regulators to enhance fruit color of 'Gala' apples

Authors

  • Alberto Fontanella Brighenti Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Estação Experimental de São Joaquim, Rua João Araújo Lima, no 102, Jardim Caiçara, CEP 88600-000 São Joaquim, SC.
  • Douglas André Würz Universidade do Estado de Santa Catarina, Centro de Ciências Agroveterinárias, Avenida Luiz de Camões, no 2.090, Conta Dinheiro, CEP 88520-000 Lages, SC.
  • Mateus da Silveira Pasa Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Estação Experimental de São Joaquim, Rua João Araújo Lima, no 102, Jardim Caiçara, CEP 88600-000 São Joaquim, SC.
  • Leo Rufato Universidade do Estado de Santa Catarina, Centro de Ciências Agroveterinárias, Avenida Luiz de Camões, no 2.090, Conta Dinheiro, CEP 88520-000 Lages, SC.

DOI:

https://doi.org/10.1590/S1678-3921.pab2017.v52.25001

Keywords:

Malus domestica, abscisic acid, ethephon, index of absorbance difference, prohydrojasmonate

Abstract

The objective of this work was to investigate the effect of plant growth regulators for enhancing fruit color of 'Gala Standard' apples (Malus domestica). The experiment was carried out in the 2015 and 2016 crop seasons. The treatments consisted of water, as a control; 300 mg L-1 ethephon, as a positive control; 400 mg L-1 prohydrojasmonate; and 400 mg L-1 abscisic acid. Flesh firmness, soluble solids content, fruit weight, and red color were assessed after harvest. Plant growth regulators enhanced red color of fruit and chlorophyll degradation. Prohydrojasmonate and abscisic acid did not reduce flesh firmness, in the 2016 season.

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Published

2017-12-18

How to Cite

Brighenti, A. F., Würz, D. A., Pasa, M. da S., & Rufato, L. (2017). Plant growth regulators to enhance fruit color of ’Gala’ apples. Pesquisa Agropecuaria Brasileira, 52(11), 1118–1122. https://doi.org/10.1590/S1678-3921.pab2017.v52.25001

Issue

v.52, n.11, nov. 2017

Section

SCIENTIFIC NOTES