THE EFFECT OF PLANT DENSITY ON VINE WATER STATUS AND VEGETATIVE DEVELOPMENT OF ‘TEMPRANILLO’ GROWN IN RUEDA (SPAIN)

This work studies the response of leaf water potential measured at 9:00 (solar time), leaf development (LAI) and dry matter production in the renewable organs of the vine on the ‘Tempranillo’ grape cultivar planted with three different distances between vines (1.2, 1.5 and 1.8 m) and a common distance between rows (3.0 m): therefore, three different plant densities were studied.
The trial was located in the village of Rodilana (Valladolid), in the Rueda Appellation of Origin and carried out in 2005, 2006 and 2007.
The results indicate that leaf water potential at 9:00 (solar time) did not show noticeable differences between the three vine spacing treatments over the summer season.
However, the 1.2 treatment did show a certain tendency to have greater leaf development (LAI) and higher dry matter production in the renewable organs of the vine (leaves, shoots and clusters) over the three years of the study.
The results show that the estimation of vine water status by means of the leaf water potential should be considered by taking into account its leaf development, with regard to the global productivity of the vineyard.

XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on the Effect of Climate Change on Production and Quality of Grapevines and their Products

E. Barajas , J. Yuste

dry matter, LAI, vine spacing, Vitis vinifera, water status

https://doi.org/10.17660/ActaHortic.2012.931.20