Terroir 1996 banner
IVES 9 IVES Conference Series 9 Progetto di zonazione delle valli di Cembra e dell’Adige. Analisi del comportamento della varietà Pinot nero in ambiente subalpino

Progetto di zonazione delle valli di Cembra e dell’Adige. Analisi del comportamento della varietà Pinot nero in ambiente subalpino

Abstract

[English version below]

Nel 1990 la Cantina LA VIS ha intrapreso un progetto di zonazione dei terreni vitati allo scopo di acquisire le conoscenze scientifiche atte a consentire il miglioramento delle qualità dei prodotti. Tale progetto si è articolato su di una superficie di 2000 ettari ubicati lungo l’asta fluviale del fiume Adige da Trento a Salorno e del torrente Avisio da Lavis a Segonzano. Data la vastità dell ‘area indagata si è suddivisa la stessa nelle zone di Cembra, Lavis, Meano e Salorno.
Nell ‘ambito di tale progetto è stata posta particolare attenzione al comportamento della varietà Pinot nero, sia sotto gli aspetti vegeto-produttivi che su risultati ottenuti a seguito di prove di microvinificazione.
I parametri vegeto-produttivi presi in considerazione (valori medi quadriennali 1992-1995) hanno evidenziato come nelle quattro zone oggetto d’indagine la produzione non ha manifestato differenze statisticamente significative nei vari ambienti, anche se alcuni dei parametri influenzanti la resa presentano delle differenze fra loro, come ad esempio il peso medio del grappolo che a Cembra présenta i valori più bassi. Analizzando i parametri qualitativi, si evidenzia come a Cembra, conseguenza di una maggiore quota altimetrica, si ha un basso grado zuccherino, una più alta acidità totale e un minor pH. L’analisi organolettica dei vini ottenuti e la successiva elaborazione statistica ha evidenziato come nelle due annate d’indagine (1992-1993) nella zona di Cembra, si sono ottenuti vini con note di tipicità e gusto superiore alla média e si è potuto evidenziare come nell ‘unità pedologica CE2 di tale zona si sono avute sensazioni gustative ed aromatiche superiori alla media.
In 1990 Cantina LA VIS undertook a zonation project of the vine terrains for the purpose of acquiring scientific knowledge to improve product quality. This project was centered on an area of 2000 hectares along the banks of the Adige river from Trento to Salorno and the Avisio stream from Lavis to Segonzano. Due to its vast size the area under examination was divided into four zones: Cembra, Lavis, Meano and Salorno.
The project examined in particular the Pinot Nero variety, the vegetal-fertile aspects as well as the results of microvinification tests.
The vegetal-fertile parameters taken into consideration (averages values from 1992-1995) show that in the four areas production did not differ significantly under the various environments, even if some parameters affecting the yield do differ, as for example in Cembra the mean weight of the grape bunch was lower. By analyzing the qualitative parameters it was found that in Cembra, with a higher altitude, there was a lover sugar level, higher total acidity and a lower ph. Analysis of the organoleptic characteristics of the wines obtained and the successive statistical elaboration has shown that the two harvests in Cembra produced wines with a more superior flavor and typicality and pedologie unit CE2 of this area a higher than average flavor and aroma were evident.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

M. FALCETTl (1), C. DE BIASl (2), C. ALDRIGHETTI (3), E.A.C. COSTANTINI (4), S. PINZAUTI (5), F. BEZZl (3)

(1) Contadi Gastaldi – Adro (Brescia)
(2) Cantina Sociale Colognola ai Colli – Colognola ai Colli (Verona)
(3) Cantina LA VIS – Lavis (Trento)
(4) lstituto Sperimentale per lo Studio e la Difesa del Suolo – Firenze
(5) Pedologo, libero professionista – Bagno a Ripoli (Firenze)

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Metabolomic profile of red non-V. vinifera genotypes

Vitis vinifera L. is the most widely cultivated Vitis species which includes numerous cultivars. Owing to their superior quality of grapes, these cultivars were long considered the only suitable for the production of fine wines. However, the lack of resistance genes in V. vinifera against major grapevine pathogens, requires for its cultivation frequent spraying with large amount of fungicides. Thus, the search for alternative and more sustainable methods to control the grapevine pathogens have brought the breeders to focus their attention on other Vitis species. In fact, wild Vitis genotypes present multiple resistance traits against pathogens, such as powdery mildew, downy mildew and phylloxera.

Impact of geographical location on the phenolic profile of minority varieties grown in Spain. II: red grapevines

Because terroir and cultivar are drivers of wine quality, is essential to investigate theirs effects on polyphenolic profile before promoting the implantation of a red minority variety in a specific area. This work, included in MINORVIN project, focuses in the polyphenolic profile of 7 red grapevines minority varieties of Vitis vinifera L. (Morate, Sanguina, Santafe, Terriza Tinta Jeromo Tortozona Tinta) and Tempranillo) from six typical viticulture Spanish areas: Aragón (A1), Cataluña (A2), Castilla la Mancha (A3), Castilla –León (A4), Madrid (A5) and Navarra (A6) of 2020 season. Polyphenolic substances were extracted from grapes. 35 compounds were identified and quantified (mg subtance/kg fresh berry) by HPLC and grouped in anthocyanins (ANT) flavanols (FLAVA), flavonols (FLAVO), hydroxycinnamic (AH), benzoic (BA) acids and stilbenes (ST). Antioxidant activity (AA, mmol TE /g fresh berry) was determined by DPPH method. The results were submitted to a two-way ANOVA to investigate the influence of variety, area and their interaction for each polyphenolic family and cluster analysis was used to construct hierarchical dendrograms, searching the natural groupings among the samples. Sanguina (A3) had the most of total polyphenols while Tempranillo (A5) those of ANT. Sanguina (A2) and (A3) reached the highest values of FLAVO, FLAVA and AA. These two last samples had also the maximum of AA. The effect cultivar and area were significant for all polyphenolic families analyzed. A high variability due to variety (>50%) was observed in FLAVA and the maximum value of variability due to growing area was detected in AA (86.41%), ANT and FLAVO (51%); the interaction variety*zone was significant only for ANT, FLAVO, EST and AA. Finally, dendrograms presented five cluster: i) Sanguina (A2); ii) Sanguina (A3); iii) Tempranillo (A5); iv) Tempranillo (A3); Terriza (A3,A5), Morate (A5,A6); v) Santafé (A1,A6); Tortozona tinta (A1,A3,A6); Tinta Jeromo (A3,A4).

Shoot positioning: effect on physiological, vegetative and reproductive parameters

[English version below]

On a étudié durant deux saisons de croissance (2002/2003 et 2003/2004) l’effet de l’orientation vertical des rameaux sur les paramètres physiologiques, végétatifs et reproductifs dans la région de Stellenbosch dans un vignoble du cépage Merlot sur 99 R conduite à espalier et taillé a cordon coursonné. Les vignes étaient espacées 2.7 x 1.5 m. L’irrigation a été appliquée quand la baie avait la dimension d’un pois et a la véraison.

Composition and molar mass distribution of different must and wine colloids

A major problem for winemakers is the formation of proteinaceous haze after bottling. Although the exact mechanisms remain unclear, this haze is formed by unfolding and agglomeration of grape proteins, being additionally influenced by numerous further factors.

Extension to the Saumurois-Touraine area of an Anjou-originated method for the characterisation of the viticultural terroirs. (Loire Valley, France)

En Anjou, une méthode de caractérisation des terroirs viticoles a été développée. Elle utilise un modèle de terrain basé sur la profondeur de sol et son degré d’argilisation. Le modèle concerne des terrains issus principalement de roches mères métamorphiques et éruptives du Massif Armoricain. Cet outil de caractérisation des terroirs viticoles nécessite d’être adapté lorsqu’il s’agit d’ensembles géologiques très différents, en particulier sur sols d’apport et de roches mères tendres et poreuses du Bassin Parisien. Une meilleure compréhension de la réserve hydrique des sols apparaît être un critère important de l’interaction entre le milieu et la plante.