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.

Download the abstract

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…

Wine growing regions global climate analysis

We depict the main features of five viticulture agroclimatic indices for 626 wine growing regions within 41 countries.
Read More

Fluorescence spectroscopy with xgboost discriminant analysis for intraregional wine authentication

AIM: This study aimed to use simultaneous measurements of absorbance, transmittance, and fluorescence excitation-emission matrix (A-TEEM) combined with chemometrics as a rapid method to authenticate wines from three vintages within a single geographical indication (GI) according to their subregional variations

Read More

CHANGES IN CU FRACTIONS AND RIBOFLAVIN IN WHITE WINES DURING SHORT-TERM LIGHT EXPOSURE: IMPACTS OF OXYGEN AND BOTTLE COLOUR

Copper in white wine can be associated with Cu(II) organic acids (Cu fraction I), Cu(I) thiol species (Cu fraction II), and Cu sulfides (Cu fraction III). The first two fractions are associated with the repression of reductive aromas in white wine, but these fractions gradually decrease in concentration during the normal bottle aging of wine. Although exposure of white wine to fluorescent light is known to induce the accumulation of volatile sulfur compounds, causing light-struck aroma, the influence on the loss of protective Cu fractions is uncertain. Riboflavin is known to be a critical initiator of photochemical reac-tions in wine, but the rate of its decay under short-term light exposure in different coloured bottles and for wine of different oxygen concentrations is not well understood.

Read More

Gamma-ray spectrometry In Burgundy vineyard for high resolution soil mapping

Aim: A soil mapping methodology based on gamma-ray spectrometry and soil sampling has been applied for the first time in Burgundy. The purpose of this innovative high-resolution mapping is to delimit soil areas, to define elementary units of soil for terroir characterization and vineyard management. The added value of this integrated approach is a continuous geophysical mapping of the soil with an investigation depth of 60cm.

Read More

Yield formation and grape composition: more than meets the eye 

Fruit quality in grapes is not well defined but is often depicted as correlating inversely with crop yield. Both fruit yield and composition, however, are made from distinct components that interact in complex ways. Reproductive growth of grapevines extends over two growing seasons. Inflorescences initiated in buds during the previous year differentiate flowers and set and develop berries during the harvest year.

Read More