Exploring high throughput secondary trait phenomics to improve grapevine breeding

Right after the pouring of wine in a glass, a myriad of volatile organic compounds, including ethanol, overwhelm the glass headspace, thus causing the so-called wine’s bouquet [1]. Otherwise, it is worth noting that during wine tasting, most people automatically swirl their glass to enhance the release of aromas in the glass headspace [1]. About a decade ago, Swiss researchers revealed the complex fluid mechanics underlying wine swirling [2]. However, despite mechanically repeated throughout wine tasting, the consequences of glass swirling on the chemical space found in the headspace of wine glasses are still barely known.

The table grape export business in Argentina had its boom in the last 2000s, when in 2008 it reached a little more than US $ 88,000,000. Since that time, the volume exported has been systematically reduced, which reduced the cultivated area and / or modified its destiny to wine or raisin production.

Insufficient acidity in grapes from warm climates/vintages is commonly corrected through addition of tartaric acid during vinification, and less so with other organic acids. An alternative approach involves bio-acidification with the yeast Lachancea thermotolerans (LT) via lactic acid production during fermentation.

Authentication in the wine industry aims to prevent fraud and strengthen confidence in trade. A previous study proposed 1H NMR as a solution for authenticating several characteristics such as grape variety, origin, and vintage (Godelman et al, 2013).

The effect of grapevine age on growth and berry development was studied from 2014 to 2016 on an experimental vineyard managed by the Hochschule Geisenheim University in Geisenheim, Germany. The vineyard was initially planted in 1971 with Vitis vinifera (L.) cv. Riesling grafted on 5C Teleki.