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

Patricio Faúndez-López,Yerko Moreno-Simunovic,Gastón Gutiérrez-Gamboa

doi:10.20870/ives-tr.2021.4817

Patricio Faúndez-López, Yerko Moreno-Simunovic + Show 1 more

Open Access

https://doi.org/10.20870/ives-tr.2021.4817

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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.

Highlights

Sourced from the research article “Pruning cuts affect wood necrosis but not the percentage of budburst or shoot development on spur pruned vines for different grapevine varieties” (Vitis, 2021)[1]
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.
Pruning cuts result in the exposure of the vascular system to the environment, leading to natural dehydration and the death of the cells adjacent to the cut zones; desiccation cones are generated by the vine which seal the injury and act a protective barrier between the vine vascular system and the environment

Summary

Introduction

Sourced from the research article “Pruning cuts affect wood necrosis but not the percentage of budburst or shoot development on spur pruned vines for different grapevine varieties” (Vitis, 2021)[1]. 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. This allowed us to determine the percentage of necrosis wood in non-permanent and permanent wood structures of vines.

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