In the course of global warming a general decrease of frost days per year and in spring can be stated. However, in viticulture this matter of fact doesn´t lead to a reduction of the risk of damages to grapevines by late spring frost events.
Adjustments of viticultural practices are required to adapt to climate change. In particular, vineyard management that vary the fruit to leaf area ratio is an important option to maintain and enhance fruit quality.
A model of the developing berry was constructed with data from published studies as well as 13 varieties grown in Davis, CA (USA).
The aim of this study was to validate and implement different non-destructive methods of leaf area and leaf area index (LAI) determination in VSP trained grapevines (Vitis vinifera L. cv. Riesling) in a field trial comparing different management systems (i.e. integrated (GAP) and two different organic (European Union Regulation 834/07) management systems).
In viticulture, the timing of phenology is critical to optimize grape quality potential particularly so in cool climates. Flowering and veraison are key phenological stages for grapevines.
The aim of this study was to investigate the effect of leaf removal during two developmental stages on the compositional development of white Riesling (Vitis Vinifera L.).
This study aimed to determine and compare the vertical root system distribution of the regional vine cultivar Loureiro, once grafted on ten different rootstocks.
Identify and trace unambiguously the wine plants before and after planting is a key activity to give the buyer a guarantee of buying or using a certified plant.
Spectral parameters as the NDVI (Normalized Difference Vegetation Index) are helpful to monitor developing stages in vegetation, including the detection of water stress in vineyards.
Grape quality is a complex concept that refers to the simultaneous achievement of optimal levels in many parameters, thus single berry attributes data are not adequate to define grape suitability for a specific end use.
The measurement of leaf water potential has been used to monitor the water relations of grapevines since the development of the pressure chamber.
Photosynthesis and carbohydrate dynamics are highly affected by abiotic stresses, making them a target to be studied in a context of fluctuating and constraining environment.
In Spain, grapevines were traditionally cultivated under rainfed conditions until recent years. In Galicia, the need for irrigating the vineyards was not a priority until very recently.
Several examples of meta-ethics are illustrated in the wine sector: the concepts of ‘organic’, hybrids, territories, in œnology, in communication.
The petiole hydraulic conductance (Kpetioles) and the vulnerability to cavitation (PLC, percentage loss of hydraulic conductivity) in leaf petioles and stems were monitored on field-grown vines (Vitis vinifera L. cv. Chasselas).
The objective of the study was to test the feasibility of a conversion of vineyards with vertical shoot positioning (espalier type) to minimal pruning with 50 % of the original plant density with regard to their water relations under non-irrigated conditions.
The dependency of ѱs on soil water availability and air vapour pressure deficit (VPD) the diurnal pattern of the ѱs was assessed during the 2009 growing season in an irrigation experiment set up at the Dão Wine Research Station (CEVDão), Nelas, Portugal.
WaLIS (Water Balance for Intercropped Systems) is a model that carries out the daily evolution of the soil water content. It takes into account the water requirement of a grass cover crop in competition with the grapevine.