Pesquisa Agropecuária Brasileira (Jul 2013)

Ethephon use and application timing of abscisic acid for improving color of 'Rubi' table grape

  • Sergio Ruffo Roberto,
  • Adriane Marinho de Assis,
  • Lilian Yukari Yamamoto,
  • Lidiane Carla Vilanova Miotto,
  • Renata Koyama,
  • Alessandro Jefferson Sato,
  • Rogério de Sá Borges

DOI
https://doi.org/10.1590/S0100-204X2013000700013
Journal volume & issue
Vol. 48, no. 7
pp. 797 – 800

Abstract

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The objective of this work was to evaluate the effect of ethephon and of abscisic acid (ABA) application timing on the color of 'Rubi' Table grape. Eight treatments were evaluated: control, without application; ethephon 500 mg L‑1 applied seven days after veraison (7 DAV); and two concentrations of ABA (200 and 400 mg L‑1) arranged with three application timings at 7 DAV, at 15 days before harvest (DBH), and at 7 DAV + 15 DBH. ABA does not modify physical‑chemical characteristics of the cluster and improves the color of grapes, especially when applied twice (7 DAV + 15 DBH) at the concentration of 400 mg L‑1.

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