Efecto del agua aplicada en las relaciones hídricas y productividad de la vid 'Crimson Seedless

Authors

  • Raúl Ferreyra
  • Gabriel Selles
  • Hermán Silva
  • Rodrigo Ahumada
  • Iván Muñoz
  • Verónica Muñoz

DOI:

https://doi.org/10.1590/S1678-3921.pab2006.v41.7253

Keywords:

stem water potential, stomatal conductance, table grapes

Abstract

This study aimed to evaluate the relationship between water and production in 'Crimson Seedless' table grapes, and to establish threshold values for plants water status. Field experiments were carried out, during a three-year period, in the Aconcagua Valley, Chile, at 32º47'S and 70º42'W, in a clay-loamy textured soil. Different irrigation water amounts were applied, between 40 and 100% crop evapotranspiration (Etc). Stem water potential measured at midday (Yxmin) and stomatal conductance were closely related to water shortage and yield obtained. Table grape yields decreased in comparison with applied water within the range of studied treatments. Sixty per cent Etc restriction decreased yields in 22%. When plants maintained Yxmin greater than -0.75 MPa, between berry set and veraison, yield and berry size were high.

Published

2006-07-01

How to Cite

Ferreyra, R., Selles, G., Silva, H., Ahumada, R., Muñoz, I., & Muñoz, V. (2006). Efecto del agua aplicada en las relaciones hídricas y productividad de la vid ’Crimson Seedless. Pesquisa Agropecuaria Brasileira, 41(7), 1109–1118. https://doi.org/10.1590/S1678-3921.pab2006.v41.7253

Issue

Section

PLANT PHYSIOLOGY