terclim by ICS banner
IVES 9 IVES Conference Series 9 Effect of different canopy managements on microclimate and carbon allocation in Vitis vinifera cv Chardonnay

Effect of different canopy managements on microclimate and carbon allocation in Vitis vinifera cv Chardonnay

Abstract

Climate change strongly affects the wine-growing sector which increasingly requires in situ adaptation strategies aimed at preserving the sustainability of production. Investigating microclimate becomes crucial in comprehending environmental pressures on plants. The microclimatic investigation conducted in the Orvieto PDO (central Italy) allowed us to highlight the climatic dynamics occurring in the last 25 years and the frequency and intensity of abiotic stresses. Two management strategies for the canopy were identified: early defoliation (ELR) and foliar application of Basalt Flour ® (FB) compared to the ordinary management (C) of the company (bud selection and topping). The effects on plant vigour indices (LAI), resource allocation in terms of carbon stored in the above-ground organs of the vine, and the microclimate of the canopy and the berry were evaluated. In particular, microclimate was evaluated through a network of sensors connected wirelessly (Wireless Sensor Network), dedicated to collecting information on temperature and humidity in the canopy and clusters. The results highlight how the two canopy management techniques influence leaf biomass (higher LAI for ELR application) and, indirectly affect the microclimate of the canopy in terms of daily temperature fluctuations and extreme thermal events. The two strategies also modulate the photosynthetic efficiency of the canopy, contributing to increased carbon storage in the aboveground organs of the plant (vegetative and productive biomass), especially for ELR. Overall, the results show how the adopted strategies contribute to increasing the resilience traits of the vine and its ecosystem functions.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Andrea Rengo1*, Elena Brunori1, Mauro Maesano1, Federico Valerio Moresi1, Riccardo Riggi1, Rita Biasi1, Giuseppe Scarascia Mugnozza1

1 Department of Innovation in Biological, Agro-Food and Forestry Systems (DIBAF), University of Tuscia, 01100 Viterbo, Italy

Contact the author*

Keywords

ground sensor platform, leaf removal, plant corroborant, canopy management strategies, viticulture

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Nucleophilic fraction to estimate the antioxidant activity of inactivated yeast derivates

Oxidation in wine is mostly related to the Michael addition of nucleophiles on two quinones formed from the oxidation of ortho-diphenols. In wine this mechanism is responsible for the increase of the yellow hue and aroma loss. Glutathione exerts its antioxidant activity throughout its competitive addition onto quinones, but many other compounds can have the same behavior: sulfanyl compounds, amino acids, etc. Addition of yeast derivates during the winemaking process can increase the level of those nucleophilic compounds and then confer to the wine a higher resistance

Contribution of viticultural and oenological factors to the aromatic potential of white Colombard wines from the south west of France Gascony vineyard

The aim of this work is to determine the influence of viticultural and oenological factors to the aromatic potential of white wines from Colombard variety in the south west of France Gascony vineyard.

Ripening characterization and modelling of Listan negro grape in Spain using a regression analysis

The professional winegrower usually selects the harvest date considering several elements, such as the vine stem and berry colour, the flavour, appearance and grain elasticity. Nowadays these elements have turned old fashioned.

IMPACT OF MUST NITROGEN DEFICIENCY ON WHITE WINE COMPOSITION DEPENDING ON GRAPE VARIETY

Nitrogen (N) nutrition of the vineyard strongly influences the must and the wine compositions. Several chemical markers present in wine (i.e., proline, succinic acid, higher alcohols and phenolic compounds) have been proposed for the cultivar Chasselas, as indicators of N deficiency in the grape must at harvest [1]. Grape genetics potentially influences the impact of N deficiency on grape composition, as well as on the concentration of potential indicators in the wine. The goal of this study was to evaluate if the che- mical markers found in Chasselas wine can be extended for other white wines to indicate N deficiency in the grape must.

Phenotyping bud break and trafficking of dormant buds from grafted vine

In grapevine, phenology from bud break to berry maturation, depends on temperature and water availability. Increases in average temperatures accelerates initiation of bud break, exposing newly formed shoots to detrimental environmental stresses. It is therefore essential to identify genotypes that could delay phenology in order to adapt to the environment. The use of different rootstocks has been applied to change scion’s characteristics, to adapt and resist to abiotic and biotic stresses[1].