Biodiversity of local Vitis vinifera L. germplasm: a powerful tool towards adaptation to global warming and desired grape composition

Tommaso Frioni; Cecilia Squeri; Alessandra Garavani; Stefano Poni; Matteo Gatti

Biodiversity of local Vitis vinifera L. germplasm: a powerful tool towards adaptation to global warming and desired grape composition

Tommaso Frioni, Cecilia Squeri, Alessandra Garavani, Stefano Poni, Matteo Gatti

Risultato della ricerca: Contributo in rivista › Articolo in rivista

Abstract

Global warming is endangering maintenance of optimal grape composition in white varietals aimed at sparkling wine making due to difficulties to maintain adequate acidity and fresh aromas. These troubles are being faced by the main white varietal of the Colli Piacentini district, named Ortrugo. Its vegetative and reproductive behavior was compared over 3 years with that of other minor autochthonous white varietals. Criteria set for adequate grape composition under sparkling vinification (total soluble solids at 20–21 Brix) and titratable acidity (TA)≥ 6.5 g/L combined with Principal Component Analysis (PCA) on the measured variables allowed a thinnning down of the initial group of 17 to 7 varietals including Ortrugo, Bucalò, Barbesino, Lecco, Melara, Santa Maria and Molinelli. PCA isolated Ortrugo’s behavior for inadequacy to maintain sufficient TA at harvest mostly due to extremely low malic acid concentration

Lingua originale	English
pagine (da-a)	1-20
Numero di pagine	20
Rivista	Frontiers in Plant Science
Stato di pubblicazione	Pubblicato - 2020

Keywords

biodiversity

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title = "Biodiversity of local Vitis vinifera L. germplasm: a powerful tool towards adaptation to global warming and desired grape composition",

abstract = "Global warming is endangering maintenance of optimal grape composition in white varietals aimed at sparkling wine making due to difficulties to maintain adequate acidity and fresh aromas. These troubles are being faced by the main white varietal of the Colli Piacentini district, named Ortrugo. Its vegetative and reproductive behavior was compared over 3 years with that of other minor autochthonous white varietals. Criteria set for adequate grape composition under sparkling vinification (total soluble solids at 20–21 Brix) and titratable acidity (TA)≥ 6.5 g/L combined with Principal Component Analysis (PCA) on the measured variables allowed a thinnning down of the initial group of 17 to 7 varietals including Ortrugo, Bucal{\`o}, Barbesino, Lecco, Melara, Santa Maria and Molinelli. PCA isolated Ortrugo{\textquoteright}s behavior for inadequacy to maintain sufficient TA at harvest mostly due to extremely low malic acid concentration",

keywords = "biodiversity, biodiversity",

author = "Tommaso Frioni and Cecilia Squeri and Alessandra Garavani and Stefano Poni and Matteo Gatti",

year = "2020",

language = "English",

pages = "1--20",

journal = "Frontiers in Plant Science",

issn = "1664-462X",

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TY - JOUR

T1 - Biodiversity of local Vitis vinifera L. germplasm: a powerful tool towards adaptation to global warming and desired grape composition

AU - Frioni, Tommaso

AU - Squeri, Cecilia

AU - Garavani, Alessandra

AU - Poni, Stefano

AU - Gatti, Matteo

PY - 2020

Y1 - 2020

N2 - Global warming is endangering maintenance of optimal grape composition in white varietals aimed at sparkling wine making due to difficulties to maintain adequate acidity and fresh aromas. These troubles are being faced by the main white varietal of the Colli Piacentini district, named Ortrugo. Its vegetative and reproductive behavior was compared over 3 years with that of other minor autochthonous white varietals. Criteria set for adequate grape composition under sparkling vinification (total soluble solids at 20–21 Brix) and titratable acidity (TA)≥ 6.5 g/L combined with Principal Component Analysis (PCA) on the measured variables allowed a thinnning down of the initial group of 17 to 7 varietals including Ortrugo, Bucalò, Barbesino, Lecco, Melara, Santa Maria and Molinelli. PCA isolated Ortrugo’s behavior for inadequacy to maintain sufficient TA at harvest mostly due to extremely low malic acid concentration

AB - Global warming is endangering maintenance of optimal grape composition in white varietals aimed at sparkling wine making due to difficulties to maintain adequate acidity and fresh aromas. These troubles are being faced by the main white varietal of the Colli Piacentini district, named Ortrugo. Its vegetative and reproductive behavior was compared over 3 years with that of other minor autochthonous white varietals. Criteria set for adequate grape composition under sparkling vinification (total soluble solids at 20–21 Brix) and titratable acidity (TA)≥ 6.5 g/L combined with Principal Component Analysis (PCA) on the measured variables allowed a thinnning down of the initial group of 17 to 7 varietals including Ortrugo, Bucalò, Barbesino, Lecco, Melara, Santa Maria and Molinelli. PCA isolated Ortrugo’s behavior for inadequacy to maintain sufficient TA at harvest mostly due to extremely low malic acid concentration

KW - biodiversity

UR - http://hdl.handle.net/10807/155989

M3 - Article

SP - 1

EP - 20

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

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