Recherches sur le rapport entre le flux de sève, la transpiration et la vigueur dans la vigne selon le mode de conduite

Authors

  • A. Calo
  • F. Giorgessi
  • L. Sansone
  • D. Tomasi
  • G. Zerbi

DOI:

https://doi.org/10.5073/vitis.1999.38.7-13

Keywords:

training system, transpiration, vigour

Abstract

La recherche s'est deroulee surune période de deux ans (1995-96) et a été mise en oeuvre dans une zone viticole de plaine de l'Italie du nord-est . Dans un vignoble éxperimental de Tocai friulano et de Chardonnay, nous avons comparé deux systèmes de conduite, l'un à végétation ascendante et l'autre à végétation retombante, dans le but d'analyser les éventuelles relations entre l'activité vegetative et la transpiration. Les resultats ont mis en evidence que les vignes du système retombant presentent une activite vegetative et un flux de transpiration plus bas, alors que les vignes du système ascendant ont une activité végétative et un flux de transpiration plus élevés . La recherche a démontre que la transpiration peut expliquer de facon déterminante le développement végétatif différent observé dans les deux systémes de conduite.

Research on the relationship between sap flow, transpiration and vigour of grapevine with regard to the trellis system

This trial was carried out in a viticultural area of northeastern Italy, during 1995 and 1996. In a Tocai friulano and Chardonnay vineyard, we compared two training systems: single curtain with downward-oriented shoots and spur cordon with upward-oriented shoots. The results emphasize that in vines with downward-oriented shoots vegetative growth and sap flow are lower than in upward-oriented shoots and, moreover, that the rate of transpiration can explain the differences in vigour and vegetative development.

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Published

2015-07-28

Issue

Vol. 38 No. 1 (1999): Vitis

Section

Article

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