italianoenglishfrançaisdeutschespañolportuguês
Language
Search
  • » News
  • » Evaluation of the vegetative and productive performance of resistant hybrids in the Colli Piacentini area

Evaluation of the vegetative and productive performance of resistant hybrids in the Colli Piacentini area

Action 4 of the ValorinVitis project: results of the 2019 growing season

In 2019, the Operational Group carried out a first evaluation of the vegetative and productive performance of the resistant hybrids in the collection at the experimental vineyard of Vicobarone. Although the vineyard has the typical traits of a planting in the first year of production (low shoots growth, limited berry growth and reduced cluster size), the measurements made can offer a useful preliminary picture of the aptitude of the various genotypes under test for cultivation in the Colli Piacentini area.

All the vines in the collection showed an excellent average bud fertility of more than 1.5 inflorescences per bud. Soreli (cross Friulano x 20-3) resulted the most productive white variety (3.18 kg/vine) and UD 31-103 (cross Merlot x 20-3) showed the highest production level among the red varieties (2.13 kg/vine). These production levels are the result of a high number of clusters per vine combined with a small size of clusters (31 clusters/vine per 104 g average cluster weight for Soreli, and 35 clusters/vine per 61 g average cluster weight for UD 31-103). The less productive varieties (UD 72-096 and Merlot Khorus with 1.28 kg/vine) also showed a high number of clusters per vine (never less than 22), but with little berry growth. This suggests that, once the vineyard has reached full maturity, all the vines under test could reach high production levels.

The course of maturation of the resistant vines was much earlier than that of the most common autochthonous vine varieties in the Colli Piacentini area. On 19 August, all the white grapes had a titratable acidity level of less than 5 g/L and a concentration in soluble solids of more than 20 ° Brix. The only exception was Sauvignon Rytos (Sauvignon blanc x Bianca cross), which showed a significantly delayed ripening process compared to the other vines in the collection (acidity of more than 6 g/L until September 2), but in any case earlier compared to other white varieties commonly used in the territory (Fig. 1). The red varieties also showed a high level of ripeness. The concentration of soluble solids in all the varieties under test was already above 22° Brix from 19 August, with the only exception of Cabernet Eidos (Cabernet Sauvignon x Bianca cross), which was slightly later than the others (Fig. 2).

 

Evoluzione dell'acidità titolabile nelle uve degli ibridi resistenti in Ortrugo e Sauvignon blanc nel piacentino progetto ValorinvitisFig. 1. Evolution of titratable acidity in the grapes of resistant hybrids in the collection and in Ortrugo and Sauvignon blanc grapes cultivated in neighbouring vineyards in 2019.

 

Evoluzione acidità titolabile uve Ervi e Barbera nel piacentino progetto ValorinvitisFig. 2. Evolution of the concentration of soluble solids in the grapes of the resistant hybrids in the collection and in the grapes of Ervi and Barbera cultivated in a neighbouring vineyard in 2019.

Although the maturation of resistant hybrids will have to be re-evaluated when the vineyard reaches full vegetative and productive maturity, the first data collected in 2019 suggest that among the white grapes under test Sauvignon Rytos (Fig. 3) is the one that could be more interesting in the Colli Piacentini area, due to its good production potential and the dynamic of ripening of the grapes.

Grappolo di Sauvignon Rytos a maturazione - progetto Valorinvitis 

Fig. 3. A ripened cluster of Sauvignon Rytos

Published on 25/09/2019
Pictures
Item available in italiano
Related sheets
  • 1st meeting of the "school in the vineyard" with foreign refugees
    Grapevines winter pruning
    In the context of Action 7 of the ValorinVitis Project, the first session of "school in the vineyard" for foreign refugees was held on March 13, 2018. The group of 15 refugees managed by the cooper...
    Published on:20/03/2018
  • The 2016 California winegrape harvest was early, with a mostly normal yield of exceptional quality fruit throughout the state. A relatively even growing season followed welcome winter rains that he...
    Published on:01/11/2016
  • The fifth edition of the International Grenaches du Monde Competition, launched in 2013 by the Conseil Interprofessionnel des Vins du Roussillon (CIVR – Interprofessional Board of Roussillon ...
    Published on:19/02/2017
  • Entries open in September 2016 and close on 28 February 2017.
    The OIV Awards rewards the best works published over the past two previous years which provide an original and relevant contribution, with an international significance for the vine and wine sector...
    Published on:23/08/2016
  • 2017 OIV Research grant program
    Grants offered within the framework of this programme are short term (six months to fifteen months maximum) and are provided for specific post graduate training programmes
    Published on:29/07/2017
  • Who is active, entertaining, educating the masses, and sharing on Twitter, Facebook, Instagram and the other platforms today?
    Published on:05/02/2017
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +
ExecTime : 1,625