Original research articles

Effects of forchlorfenuron (CPPU) and girdling on table grape cultivars "Perlette" and "Italia"

Abstract

A study was conducted to determine the effects of post-bloom applications of forchlorfenuron (CPPU) at 5 and 10 ppm, and the practice of cane girdling on fruit quality of two table grape cultivars (cvs.) « Perlette » (seedless) and « Italia » (seeded). For « Perlette » cv, CPPU treatments increased significantly berry weight and crop per vine, relatively to the control. However, soluble solids decreased while the acidity increased, reflecting a late maturation of berries from the treated vines. The delay of fruit maturity was also observed in « Italia » grapes, measured by a significant decrease in fruit soluble solids content. Girdling had a slight and non significant effect on fruit quality for both cvs.

Authors


Aziz Ezzahouani

Zahouani@iav.refer.org.ma

Affiliation : Institut agronomique et vétérinaire Hassan II, BP. 6202, 10101 Rabat-Instituts, Maroc

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