Effect of density of planting on agronomic grapevine behaviour and on wine quality: experiment on Chasselas. 1. Agronomic results | Influence de la densite de plantation sur le comportement agronomique de la vigne et sur la qualite des vins : essai sur Chasselas. 1. Resultats agronomiques
2003
Murisier, F. | Zufferey, V. (Station federale de recherches en production vegetale de Changins (RAC), Pully (Switzerland). Centre viticole du Caudoz)
An experiment of spacing between rows with different heights of the foliar hedge and different yield levels was started in 1986 at the experimental vineyard of the Federal Agricultural Research Station of Changins at Pully (VD). At the same shoot load and the same clusters number per vine, the increasing of the row spacing led to an increase of the yield per plant but to a strong decrease of the yield per square meter, without improvement of the sugar content of the must. At the same yield level per square meter, the sugar content of the must decreases with increasing row spacing. The same observation was made for the total cane weight. The row spacing had only little effect on must acidity, berry weight, bud fertility, botrytis level and on the mineral composition of the leaves. There is a good correlation between leaf surface exposed to light per kg of fruit and the sugar content of the must.
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