The role of diaphragm as a natural resistance to the necrosis produced by pruning cuts

Abstract

Long before the scientific method was created, vine pruning was established as an art as early as at the beginning of the Christian era. Pruning is a way of reducing the vegetative part of the vine in order to limit its natural growth, and thus improve yield and grape quality by controlling the number of latent buds that are left per vine. Today, Virgilio and Plineo instructions are still being followed for pruning, with the exception of some small empirical changes, which were introduced in the 19th century by Jules Guyot. This report aims to evaluate the effect of pruning cuts on wood necrosis behaviour, and to determine the effect of pruning on shoot development on different vine varieties.