GiESCO 2017 – Session 5: Vineyard management

Yield control is an important current issue because of the strong correlation of excessive yield and frequency of some diseases.

Young vines are very susceptible to frost damage due to their short height which situates frost-sensitive buds and shoots very close to the ground, which is where the coldest air temperatures typically occur.

Red grapes contain significant amounts of phenolic compounds, known to contribute to wine quality and to provide important health benefits. Berry skin phenolics can be elicited by plant hormones. The aim of this work was to increase the content of anthocyanins and trans-resveratrol in five red varieties cultured in Argentina: Malbec (M), Bonarda (B), Syrah (S), Cabernet Sauvignon (CS), and Pinot Noir (PN), in two different growing regions: Santa Rosa (SR) and Valle de Uco (VU), by applying a post-veraison hormonal treatment with abscisic acid (ABA) and methyl jasmonate (MeJA).

Worldwide, the wine industry is interested in the influence of terroir on wine characteristics and, in particular, on the soil processes and properties influencing the wine quality.

In the last years, consumers are increasingly demanding for healthy foods. Table grapes are considered an important source of bioactive compounds and therefore their availability in the market should last as long as possible while preserving the phenolic quality.

For cool windy climates and/or lower vigor sites, delays in vine development during training can result in a greater number of growing seasons to achieve full crop yield potential.

Benefits of under-trellis cover crops (UTCC) have been reported. Our goal was to evaluate the UTCC, as tool to restrict vegetative growth of Vitis vinifera cv. Tannat grapevines in a humid environment.

Global warming is causing early harvests because of the fast grape total soluble solids accumulation.

In recent years, the wine industry has become increasingly interested in the influence of the terroir characteristics on the features of a wine and in particular, the mechanisms by which a soil influences wine quality.

Bunch rot is one of the main causes of grape quality losses, especially in rainy summers.

There is some evidence that sugar accumulation is retarded in minimally pruned vines.

Recently, some studies have been conducted to optimize traditional nitrogen supplementation of the soil by promoting the foliar application of different nitrogen sources such as phenylalanine and urea.

The aim of this work was to study the influence of nitrogen (N) foliar applications on grape amino acid composition.

The effect of soil cover with polyethylene on the physiological and grape quality parameters was evaluated during three seasons in a commercial vineyard in southern Uruguay.

Superior Seedless is a table grape cultivar mainly produced in San Juan.