Enoforum 2021
IVES 9 IVES Conference Series 9 Enoforum Web 9 Enoforum Web Conference 2021 9 Copper reduction strategy for sangiovese in organic viticulture

Copper reduction strategy for sangiovese in organic viticulture

Abstract

Organic viticulture requires copper based treatments for bunch protection even though an intensive employment is no longer admitted because of its low leaching and phytotoxicity in the soil. UE Reg. 1981/2018 set copper employment to 4 kg/ha for year or 28 during 7 years with an absolute level allowed of 6 Kg/ha although those limits were decreased frequently. In order to reduce copper a valid strategy is to monitor vineyard microclimate (wind, temperature, humidity) implementing DSS to maximize treatments effectiveness. We can also stimulate plant natural defenses by supporting substances (Biostimulants, Inductors, Revitalizing molecules) in order to minimize number of treatments. In the Castello of Gabbiano farm (DOCG Chianti Classico, Italy) during 2019 and 2020, an organic management has been compared with the same organic management but with reduced treatments and adding supporting substances to the grapevine, over 3 vineyards with different exposition and slope. No statistical significance (P>0,05) has been found between the two managements inside each vineyard regarding grapes production and quality. Downy mildew Incidence and severity on leaf and bunch were higher in the low copper employment management only in 2020. Data of copper treatments allowed a calculation of 2.7 kg/ha and 4.3 copper employment for organic and low treatments organic management respectively over the two years, producing grapevine with the same quality but with a copper distribution reduction of 37-40% over different exposition and cultivation situations.

DOI:

Publication date: April 23, 2021

Issue: Enoforum 2021

Type: Article

Authors

Petrucci William Antonio1, Ciofini Alice1, Valentini Paolo1, D’Arcangelo Mauro E. M. 1, Storchi Paolo1, Mugnai Laura2, Carella Giuseppe2, Burroni Fabio3, Marco Pierucci4, Perria Rita1

1 CREA – Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria – Centro di ricerca Viticoltura ed Enologia
2 DAGRI – Dipartimento di Scienze e Tecnologie Agrarie, Alimentari Ambientali e Forestali-Università di Agraria di Firenze
Castello di Gabbiano
P.Ri.Ma. Forma – Progettazione, Ricerca e Management per la Formazione

Contact the author

Tags

Enoforum 2021 | IVES Conference Series

Citation

Related articles…

Isolated Antarctic soil yeasts with fermentative capacity with potential use in the wine industry

The wine industry is currently on the search for new aromas and less browning in their products. In the improvement process of wine, lower fermentation temperatures have been considered, however, the yeasts in the market cannot tolerate such temperatures

Enhancing plant defense: carbon dots for efficient spray-induced gene silencing 

Ectopic RNA application for plant defense faces challenges in tree crops, including size, diffusion, and stability of active compounds such as ribonucleoproteins and nucleic acids. While existing strategies involve expressing dsRNA in transgenic plants targeting pathogens, our research strives to develop a transient RNAi system based on Spray-Induced Gene Silencing (SIGS). This approach aims to circumvent legal barriers and public concerns associated with genetically modified organisms (GMOs). Our strategy integrates SIGS with branched polyethyleneimine-functionalized Carbon Dots (bPEI-CDs) as nanocarriers, effectively addressing unique delivery challenges in plant defense as RNA stability and uptake enhancement

Managing local field variability in the framework of precision viticulture

Managing grapevines according to the practices of Precision Agriculture (PA), may prove to be an asset in the hands of the modern grape growers.

Time stability of visitors’ preferences for preserving the worldwide cultural landscape alto douro wine region

The Alto Douro Wine Region (ADWR) was classified a world heritage site, specifically as a cultural landscape, by UNESCO, in 2001. The well known “Porto Wine” and other high quality wines are produced in the Douro region. As an attraction and touristic site, the cultural site has to meet the needs of more demanding visitors and to compete with a growing number of cultural sites, also classified by UNESCO. To achieve this goal, landscape managers and public authorities have much to profit from knowing and understanding visitors’ preferences regarding the attributes associated to its outstanding universal value.

D-wines: use of LC-MS metabolomic space to discriminate italian mono-varietal red wines

Studying wine metabolome through multiple targeted methods is complicated and limitative; since grapes, yeasts, bacteria, oxygen, enological techniques and wine aging collaborate to deliver one of the richest metabolomic fingerprint.