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Impact of growing season temperature on grape prices in Australia Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-08-09 G. Puga, K. Anderson, F. Doko Tchatoka
Cross-sectional models are useful for estimating the impact that climate and climate change have on grape prices due to changes in grape composition. The aim of this study is to estimate the impact of growing season temperature (GST) on grape prices in Australia using cross-sectional data.
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Timing and severity of crop load management influences technological maturity, terpene synthase expression and free terpene accumulation in Gewürztraminer grapes (Vitis vinifera L.) Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-08-02 Y. Kovalenko, J. VanderWeide, R. Tindjau, W.F. Zandberg, S.D. Castellarin
Terpenes are volatile organic compounds that influence the composition of many winegrape cultivars. Terpene accumulation is variable between seasons and locations, influencing vintage composition. Crop load management (CLM) is a cultural practice utilised to improve grape composition; however, the impact of CLM on terpene biosynthesis and accumulation in winegrapes remains largely unknown.
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Effect of non-Saccharomyces yeast strains on 3-isobutyl-2-methoxypyrazine concentration and aroma properties in Sauvignon Blanc wines during fermentation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-08-01 J.-C. Li, K.L. Wilkinson, C.M. Ford, V. Jiranek
3-Isobutyl-2-methoxypyrazine (IBMP) is a compound whose aroma is reminiscent of green capsicum and is found in many winegrape cultivars, such as Cabernet Sauvignon and Sauvignon Blanc. A high concentration in grapes can lead to excessive greenness in the resulting wine products, thus reducing quality. This study sought to determine the impact of using non-Saccharomyces yeast during fermentation on
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Influence of amino acids, and their interaction with volatiles and polyphenols, on the sensory properties of red wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-07-27 D. Espinase Nandorfy, F. Watson, D. Likos, T. Siebert, K. Bindon, S. Kassara, R. Shellie, R. Keast, I.L. Francis
The effect of amino acids, and their interactions with volatiles and other non-volatiles, on in-mouth sensory properties of red wines is not known. This knowledge gap has been studied in a series of comprehensive sensory experiments.
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Deficit irrigation differently affects aroma composition in berries of Vitis vinifera L. (cvs Sangiovese and Merlot) grafted on two rootstocks Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-06-02 G. Palai, G. Caruso, R. Gucci, C. D'Onofrio
Water deficit modifies the concentration of the aroma compounds of grape berries, but little information is available on the effect of deficits applied at different phenological stages. We evaluated the effect of deficit irrigation on glycosylated volatile organic compounds (VOCs) responsible for the aroma of berries of Sangiovese and Merlot cultivars grafted on 1103P or SO4 rootstocks.
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Identification and recovery of local Vitis vinifera L. cultivars collected in ancient vineyards in different locations of Argentina Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-05-26 R. Torres, G. Aliquó, A. Toro, F. Fernández, S. Tornello, E. Palazzo, S. Sari, M. Fanzone, F. De Biazi, H.J. Oviedo, R. Segura, V. Laucou, T. Lacombe, J.A. Prieto
These last years, minor cultivars have gained attention as they provide an opportunity to offer original products in a global market and to combat global warming. Recent evidence brought to light the existing diversity within the group of autochthonous cultivars from Argentina and other South American countries, commonly known as criollas. The objective was to prospect, rescue and identify grapevine
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Characterising retained dormant shoot attributes to support automated cane pruning on Vitis vinifera L. cv. Sauvignon Blanc Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-05-19 P.T.M. Epee, O.J. Schelezki, A.K. Parker, M.C.T. Trought, A. Werner, R.W. Hofmann, P. Almond, J. Fourie
The shortage of skilled pruners portends automation as an alternative. To train an Artificial Intelligence (AI) system in cane pruning, the attributes of grapevine dormant shoots were characterised.
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Connection matters: exploring the implications of scion–rootstock alignment in grafted grapevines Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-05-06 D. Marín, L.G. Santesteban, S. Dayer, A. Villa-Llop, F.J. Abad, G.A. Gambetta, J.M. Torres-Ruiz, N. Torres
Grafting in viticulture has been essential since the advent of the phylloxera crisis at the end of the 19th century, but relatively little is known about the relevance of the quality of the connection at the grafting junction on the behaviour of grafted grapevines.
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Development of downy mildew in grape bunches of susceptible and resistant cultivars: infection pathways and limited systemic spread Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-04-26 K. Gindro, S. Schnee, N. Lecoultre, E. Michellod, V. Zufferey, J.-L. Spring, O. Viret, P.-H. Dubuis
Plasmopara viticola development in bunches of two grapevine cultivars, the resistant Divico and the susceptible Chasselas, was studied by using microscopy and molecular detection to investigate tissue susceptibility and the extent of colonisation.
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Kaolin particle film limits grapevine downy mildew epidemic under open-field conditions and stimulates the plant defence response Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-04-25 Y. Wang, X. Cao, Z.-L. Wang, X. Han, Y.-L Han, D. Wu, M. Hui, F. Yao, H. Wang, H. Li
Grapevine downy mildew, the most destructive grapevine disease caused by Plasmopara viticola, requires more environmentally friendly control measures. A chemically inert kaolin particle film (KPF) was tested for the control of downy mildew.
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Carbon balance in grapevines (Vitis vinifera L.): effect of environment, cultivar and phenology on carbon gain, losses and allocation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-04-06 E. Hernández-Montes, J.M. Escalona, M. Tomás, S. Martorell, J. Bota, I. Tortosa, H. Medrano
Measuring the carbon assimilation and respiration during vine phenology can provide an understanding of the dynamics of carbon fluxes from different organs and their relationship. Most field studies to date do not consider the respiratory losses of different plant organs and their variability under environmental, genetic and phenological changes. The aim of this study was to investigate the effect
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Facilitating mapping and understanding of within-vineyard variation in fruit composition using data pooled from multiple vineyards Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-03-28 B. Sams, R.G.V. Bramley, M. Aboutalebi, L. Sanchez, N. K. Dokoozlian, C. M. Ford, V. Pagay
A large number of fruit samples is required for adequate variogram estimation, making the development of prescriptive maps for vineyard management cost prohibitive for most growers. The project assessed the efficacy of aggregating samples from multiple vineyards, over multiple years, to estimate a ‘common’ variogram that could be generated and applied more efficiently.
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Evidence that methoxypyrazine accumulation is elevated in Shiraz rachis grown on Ramsey rootstock, increasing ‘green’ flavour in wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-03-27 D.L. Capone, I.L. Francis, P.R. Clingeleffer, S.M. Maffei, P.K. Boss
‘Green’ sensory characters in Shiraz wines were observed in wines produced from different rootstocks. The compounds responsible were investigated as these attributes are generally seen as negative.
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Rootstock-conferred traits affect the water use efficiency of fruit production in Shiraz Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-03-27 E.J. Edwards, A. Betts, P.R. Clingeleffer, R.R. Walker
Rootstock type can lead to differences in scion canopy growth and fruit yield by conferring specific traits to the scion. Conferred traits may interact to alter the relationship between vine water use and fruit yield, providing a mechanism whereby rootstocks could be used to improve the water use efficiency of fruit production. This study aimed to determine whether rootstock conferred vigour and crop
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Development of new wine-, dried- and tablegrape scions and rootstocks for Australian viticulture: past, present and future Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-03-09 I.B. Dry, C. Davies, J.D. Dunlevy, H.M. Smith, M.R. Thomas, A.R. Walker, R.R. Walker, P.R. Clingeleffer
This review highlights the contributions of CSIRO to the development of new scions and rootstocks for the Australian winegrape, driedgrape and tablegrape industries. Initially, CSIRO played a pivotal role in the selection of high-yielding Sultana clones which contributed over half the total Australian grape crop in the 1970s used for wine- and driedgrape production. It was also responsible for importation
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Rootstock type influences salt exclusion response of grafted Shiraz under salt treatment at elevated root zone temperature Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-03-06 R.R. Walker, D.H. Blackmore, J.D. Dunlevy, E.J. Edwards, A.R. Walker
The temperature of the upper soil zone lags but strongly correlates with prevailing air temperature. The effect of root zone (RZ) temperature on shoot salt exclusion is poorly understood. The aim was to gain a better understanding of the effect of RZ temperature on the salt exclusion, growth and stomatal conductance of Shiraz grafted onto a range of rootstock genotypes.
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Sparging of white wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-28 J. Walls, S. Sutton, C. Coetzee, W.J. du Toit
Sparging with an inert gas is often used in the wine industry to lower the dissolved oxygen concentration in wine. It is not well known, however, if this practice affects the composition of wine, and as well as the physio-chemical and operating factors affecting the efficacy of sparging. The main aims of this study were to assess the effect of sparging on white wine composition and to elucidate winemaking
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Characterising spatio-temporal variation in fruit composition for improved winegrowing management in California Cabernet Sauvignon Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-27 B. Sams, R.G.V. Bramley, L. Sanchez, N.K. Dokoozlian, C.M. Ford, V. Pagay
Spatial variability in yield and fruit composition in winegrape vineyards has been demonstrated, but few chemical compounds responsible for impacting wine composition have been analysed at a sample density high enough to compare with variability in remotely sensed imagery. The aims of this project were to evaluate spatial variability in grape composition at harvest in three seasons and to compare this
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Assessment of phenology, growth characteristics and berry composition in a hot Australian climate to identify wine cultivars adapted to climate change Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-27 P.R. Clingeleffer, H.P. Davis
The phenology, growth traits and fruit composition of cultivars in the CSIRO germplasm collection, located in a hot Australian region, were assessed to identify those adapted to climate change.
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Novel use of activated carbon fabric to mitigate smoke taint in grapes and wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-27 K.L. Wilkinson, R. Ristic, C. Szeto, D.L. Capone, L. Yu, D. Losic
Grapegrowers and winemakers, around the world, are searching for strategies to mitigate the compositional and sensory consequences of grapevine exposure to smoke from wildfires. This study evaluated the use of activated carbon fabrics as protective coverings to mitigate the uptake of smoke-derived volatile phenols by grapes, and accordingly, the intensity of smoky, ashy characters in wine.
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Research trends in the oenological and viticulture sectors Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-26 A. Cimini, M. Moresi
The purpose of this study was to analyse the trend of the scientific evolution of the oenological and viticulture sectors by accounting for the peer-reviewed articles written in the English language as retrieved from the Scopus database.
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Investigating the effects of elevated temperature on salinity tolerance traits in grapevine rootstocks using high-throughput phenotyping Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-22 J.D. Dunlevy, D.H. Blackmore, A. Betts, N. Jewell, C. Brien, B. Berger, R.R. Walker, E. J. Edwards, A.R. Walker
Predicted impacts of climate change—increased temperature, decreased rainfall, and reduced water availability—are expected to increase irrigation-related salinity in Australia's major wine regions. Breeding of new abiotic stress-tolerant rootstocks will help to mitigate these effects on viticulture. Here, we investigated the impact of elevated temperature on key salt tolerance traits of two contrasting
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First characterisation of thiol precursors in Colombard and Gros Manseng: comparison of two cultivation practices Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-16 G. Dournes, A. Verbaere, F. Lopez, T. Dufourcq, J.-R. Mouret, A. Roland
The thiol aromatic potential of the grape cultivars, Colombard and Gros Manseng, from Côtes de Gascogne was characterised for the first time.
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Concentration of smoke marker compounds in non-smoke-exposed grapes and wine in Australia Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-16 A. Coulter, G. Baldock, M. Parker, Y. Hayasaka, I.L. Francis, M. Herderich
An elevated concentration of several volatile phenols and their glycosides in grapes and wines is associated with exposure of grapes to forest fire smoke. Interpretation of phenol compositional data from grapes or wines, however, is complicated by the fact that traces of these compounds can be detected in non-smoke-exposed samples. Hence, the concentration of smoke marker compounds was investigated
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Impact of Botrytis cinerea-infected grapes on quality parameters of red wine made from withered grapes Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-02-08 J. Kelly, D. Inglis, L. Dowling, G. Pickering
Modification of important odorants induced by Botrytis cinerea has been reported in dry red wine (Amarone) made from withered grapes, but the impact on wines produced in other regions remains to be elucidated.
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Syrah and Grenache (Vitis vinifera) revealed different strategies to cope with high temperature Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2022-01-13 A.E. Gallo, J.E. Perez Peña, C.V. González, J.A. Prieto
Global warming will threaten vineyard sustainability in warm and arid regions. Therefore, increasing water use efficiency (WUE) is essential for long-term viticulture sustainability. Nevertheless, studies concerning the response of stomata and WUE to temperature are scarce. We evaluated the effect of sustained warming on WUE and its components in cultivars with contrasting stomatal behaviour.
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Understanding the interactive effects of volatile compounds contributing to ‘stone fruit’ aroma nuances in white wines Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-12-21 D. Espinase Nandorfy, T. Siebert, F. Watson, R. Keast, I.L. Francis
The sensory experience of wine aroma is challenging to study. Given the presence of numerous and trace level volatiles, the subtle aroma nuances involved, as well as the complexity of human odour processing, the contribution of individual compounds and mixtures can be difficult to determine. In white wines, the volatile compounds eliciting stone fruit aromas are not well understood.
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Monitoring yeast autolysis in sparkling wines from nine consecutive vintages produced by the traditional method Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-12-05 P. Pons-Mercadé, P. Giménez, G. Vilomara, M. Conde, A. Cantos, N. Rozès, S. Ferrer, J.M. Canals, F. Zamora
Yeast autolysis is a key step in the production of sparkling wines using the traditional method and a source of polysaccharides, mannoproteins and proteins. The evidence, however, of the enrichment of these macromolecules during ageing is not evident in the literature. In this study, autolysis of yeast lees in sparkling wines (Cava) was monitored over nine consecutive vintages.
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Rootstock effects on growth and fruit composition of low-yielding winegrape cultivars grown in a hot Australian climate Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-12-05 P.R. Clingeleffer, G.H. Kerridge, E.H. Rühl
The use of rootstocks to enhance the performance of low-yielding wine cultivars grown under hot irrigated conditions was studied.
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Nitrogen dynamics and fertilisation use efficiency: carry-over effect of crop limitation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-12-02 T. Verdenal, J.E. Spangenberg, Á. Dienes-Nagy, V. Zufferey, J.-L. Spring, O. Viret, C. van Leeuwen
Knowing the impact of cultural practices on nitrogen (N) dynamics in perennial crops is critical to promote N use efficiency. This study focused on the impact of crop regulation on the plant N dynamics, on the fruit N composition, and on the N fertilisation use efficiency.
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Isolation and characterisation of autochthonous Saccharomyces cerevisiae from ‘Pago’ Merlot wines of Utiel-Requena (Spain) origin Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-28 C. Ut, C. Berbegal, V. Lizama, L. Polo, M.J. García, L. Andrés, I. Pardo, I. Álvarez
To achieve both the control of the undesirable yeasts and the improvement of the characteristics of Merlot ‘Pago’ wines, Saccharomyces cerevisiae yeast diversity was investigated in a spontaneous ‘Pago’ Merlot fermentation from the Utiel-Requena region (Spain). Isolates of S. cerevisiae were characterised by a holistic procedure using the same Merlot grape must from which they were isolated.
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Whole bunch fermentation and the use of grape stems: effect on phenolic and volatile aroma composition of Vitis vinifera cv. Pinot Noir wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-18 P.M. Wimalasiri, K.J. Olejar, R. Harrison, R. Hider, B. Tian
Whole bunch fermentation is widely used in red wine production but research on whole bunch fermentation is limited, especially for cool climate Pinot Noir. Inclusion of whole bunches or grape stems was investigated in Pinot Noir wine production with respect to extraction of phenolic compounds and aroma production.
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Abscisic acid and proline are not equivalent markers for heat, drought and combined stress in grapevines Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-16 P.P. Lehr, E. Hernández-Montes, J. Ludwig-Müller, M. Keller, C. Zörb
Viticulture will be particularly affected by increasing drought and heat waves in the future. It is of interest to find traits that indicate stress before symptoms become apparent. We investigated whether the commonly used traits, proline and abscisic acid (ABA) biosynthesis, are suitable markers for heat, drought or combined stress and whether gene expression of key enzymes of ABA biosynthesis is
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Winegrape cultivars (Vitis vinifera) vary in susceptibility to the grapevine trunk pathogens Eutypa lata and Diplodia seriata Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-16 M.R. Sosnowski, M.R. Ayres, M.G. McCarthy, E.S. Scott
Eutypa and Botryosphaeria dieback are diseases that affect vineyards worldwide, reducing productivity and longevity. The ability of the causal pathogens Eutypa lata and Diplodia seriata to colonise grapevine canes was investigated in the search for resistance or tolerance to trunk diseases.
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Cultivar susceptibility and control of angular leaf scorch in grapevine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-11 M.R. Sosnowski, M.R. Ayres, W.F. Wilcox
Angular leaf scorch (ALS), caused by the fungus Pseudopezicula tetraspora, is an exotic disease threat to the $45 billion Australian wine industry. Research was undertaken at the Cornell University New York State Agricultural Experiment Station in Geneva, NY, USA to develop contingency plans for the Australian wine industry in the event of an ALS incursion.
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Modulation of a defined community of Oenococcus oeni strains by Torulaspora delbrueckii and its impact on malolactic fermentation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-09 A. Balmaseda, N. Rozès, A. Bordons, C. Reguant
Torulaspora delbrueckii is being used increasingly as a starter for alcoholic fermentation (AF) because of its chemical modulation of wine. Previous studies on this yeast in a natural must have shown a different Oenococcus oeni population by the end of MLF. In this study we aim to evaluate this aspect in a defined O. oeni strain consortium in a sterile grape must during winemaking.
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Autolysis and the duration of ageing on lees independently influence the aroma composition of traditional method sparkling wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-11-07 S. Sawyer, R. Longo, M. Solomon, L. Nicolotti, H. Westmore, A. Merry, G. Gnoinski, A. Ylia, R. Dambergs, F. Kerslake
Yeast autolysis is understood to be primarily responsible for giving traditional method sparkling wines complex and developed aromas. The contribution from ageing the wine itself, however, is less well-established. This study aimed to determine the contribution of autolysis products and compounds associated with wine oxidation and ageing in Vitis vinifera L. Chardonnay and Pinot Noir wines over 24 months
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Timing of auxin treatment affects grape berry growth, ripening timing and the synchronicity of sugar accumulation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-10-21 C. Davies, C. Böttcher, E.L. Nicholson, C.A. Burbidge, P.K. Boss
Climate change has resulted in earlier berry development and compressed harvests creating problems with harvesting and winery logistics and causing undesired modifications to grape and wine composition, such as elevated concentration of berry sugar and wine alcohol. Auxin treatment of grapevine bunches prior to veraison can counteract these adverse changes by delaying berry maturation. The most efficacious
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Exploring the influence of grape tissues on the concentration of wine volatile compounds Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-10-14 C. L. Blackford, R. D. Trengove, P. K. Boss
Knowledge of varietal wine flavour and aroma compounds has improved, but gaps exist concerning how grape composition impacts wine style. This work aimed to explore the influence that different grape tissues can have on the volatile profiles of wines.
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Experimentation during wine grape production in Australia: motivations, approaches and opportunities for change Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-10-06 X. Song, K.J. Evans, S. Kumar, R.G.V. Bramley
Grapegrowers often trial alternative practices to meet business goals. Our aim was to investigate why and how experiments are conducted during grape production, the perceived value of current approaches and opportunities for change.
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Unripe grapes: an overview of the composition, traditional and innovative applications, and extraction methods of a promising waste of viticulture Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-10-03 G. Fia, G. Bucalossi, C. Proserpio, S. Vincenzi
Unripe grapes (UGs) are a waste product of grapevine cultivation and an emerging source of several compounds, such as organic acids, phenolic compounds, vitamins and mineral salts, of great economic importance to the pharmaceutical, cosmetic and food industries. Traditionally, products made from UGs, such as verjuice and sour grape sauces, have been used as seasoning or acidifying agents. The health
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Free and glycosylated green leaf volatiles, lipoxygenase and alcohol dehydrogenase in defoliated Nebbiolo grapes during postharvest dehydration Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-09-28 P. Piombino, A. Genovese, L. Rustioni, L. Moio, O. Failla, A. Bellincontro, F. Mencarelli
Nebbiolo grapes are used to produce Sfursat wine, following partial dehydration. This research aimed to clarify the influence of fruit exposure to light and postharvest water loss on the concentration of green leaf volatiles (GLVs) and lipoxygenase (LOX) and alcohol dehydrogenase (ADH) activity of grapes.
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Double cropping in Vitis vinifera L. cv. Pinot Noir: agronomical and physiological validation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-07-07 S. Poni, F. Del Zozzo, S. Santelli, M. Gatti, E. Magnanini, P. Sabbatini, T. Frioni
Environmental effects of global warming are leading to extended ripening seasons, which may either require or allow new vineyard management techniques. An innovative double-cropping technique is proposed for temperate climate areas.
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Differential response of the accumulation of primary and secondary metabolites to leaf-to-fruit ratio and exogenous abscisic acid Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-07-14 L. Wang, E. Brouard, G. Hilbert, C. Renaud, J.-P. Petit, E. Edwards, A. Betts, S. Delrot, N. Ollat, S. Guillaumie, E. Gomès, Z. Dai
Climate change is modifying grape berry composition and affecting wine quality and typicity. We evaluated the effects of leaf-to-fruit ratio and exogenous abscisic acid (ABA) application on the accumulation of primary and secondary metabolites in berries, in order to optimise climate change adaptation strategies.
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Chemical and chromatic effects of saignée combined with extended maceration and microwaved stem addition on three Pinot Noir clones from the Central Coast of California Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-08 L.F. Casassa, A.A. Vega-Osorno, J.P. Hernandez
Pinot Noir grapes show variations within clones, and winemaking techniques aimed at increasing phenolic substances and colour may or may not affect them similarly.
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Methods for continual production of grapevine plants grown from green cuttings, with repeated budburst induction, in an environmentally controlled greenhouse Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-09-05 P.W. Noyce, C.E. Offler, C.C. Steel, J.M. Enright, C.P.L. Grof
The beginning of a grapevine inflorescence commences in spring with floral evocation, defined as the irreversible changes in the shoot apical meristem committing the plant to flower formation. To identify evocation genes, repeated sampling of shoots was necessary; however, utilising fixed vineyard plants was unsuitable. To obtain samples, methods were required for: (i) continual production of smaller
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Effect of microoxygenation applied before and after malolactic fermentation on monomeric phenolics and tannin composition of Pinot Noir wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-09-03 Y. Yang, R.C. Deed, L.D. Araujo, A.L. Waterhouse, P.A. Kilmartin
This study examines the effect of microoxygenation (MOX) applied before and after malolactic fermentation (MLF) on monomeric phenolic compounds and the tannin composition of a young Pinot Noir wine. It provides a complementary study to an earlier report on the effect of MOX on Pinot Noir colour and pigment development.
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Use of auxin to delay ripening: sensory and biochemical evaluation of Cabernet Sauvignon and Shiraz Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-19 C. Böttcher, T.E. Johnson, C.A. Burbidge, E.L. Nicholson, P.K. Boss, S.M. Maffei, S.E.P. Bastian, C. Davies
Climate change is prompting earlier grape ripening and harvest compression causing quality and logistical problems for growers and winemakers. Application of 1-naphthalene acetic acid (NAA) offers a management tool to delay ripening and expand the harvest window. This study extends previous findings about the effect of NAA on Shiraz fruit and wine composition and provides the first analysis of NAA-induced
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Differential influence of timing and duration of bunch bagging on volatile organic compounds in Cabernet Sauvignon berries (Vitis vinifera L.) Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-19 L. He, X.-Q. Xu, Y. Wang, J. Vanderweide, R.-Z. Sun, G. Cheng, W. Chen, S.-D. Li, S.-P. Li, C.-Q. Duan, J. Wang, Q.-H. Pan
Bunch bagging is a grapevine canopy management strategy to protect bunches from light, heat stress and disease pressure. The aim of this study was to unveil the effects of timing and duration of bunch bagging on grape volatile organic compounds (VOCs) at the transcriptomic and metabolic levels.
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Critical timing of fungicide application for pruning wound protection to control grapevine trunk diseases Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-17 M.R. Ayres, R. Billones-Baaijens, S. Savocchia, E.S. Scott, M.R. Sosnowski
Grapevine trunk diseases, caused by fungal pathogens that infect pruning wounds, pose a major threat to the sustainability of vineyards throughout the world. Pruning wound protectants can control infection, but little is known about the optimal timing of application of protectants following pruning. In this study, the timing of fungicide application to pruning wounds was evaluated to assess curative
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Application of foliar urea to grapevines: productivity and flavour components of grapes Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-15 G. Gutiérrez-Gamboa, F. Diez-Zamudio, L. Oliveira Stefanello, A. Tassinari, G. Brunetto
Urea is a non-electrically charged nitrogen (N) molecule suitable for foliar application, since it easily penetrates the epicuticular waxes and the cutin layer of leaves. Several field trials have been conducted to understand how foliar application of urea to grapevines may affect yield and grape composition compared to other N fertilisers. The effectiveness of foliar application of urea to change
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Role of extraction procedures on the concentration of varietal thiol precursors in Grillo white grape must Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-08-01 A. Tirelli, I. De Noni, M. Stuknyté, V. Pica, D. Fracassetti
Varietal thiol precursors (VTPs) decrease strongly after the pre-fermentative operations. The effect of grape must extraction steps on the concentration of S-3-(hexan-1-ol)-L-glutathione (G-3SH), S-3-(hexan-1-ol)-L-cysteine (Cys-3SH) and S-3-(hexanal)-glutathione (G-3SHal) was investigated.
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Underpinning terroir with data: on what grounds might subregionalisation of the Barossa Zone geographical indication be justified? Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-07-28 R.G.V. Bramley, J. Ouzman
Winegrowers in the Barossa Zone geographical indication of South Australia are interested in understanding subregional terroir. A previous analysis of biophysical variation over the entire Barossa Zone was not strongly supportive of the subregionalisation favoured by local winegrowers. Here, we use an updated, contemporary climate data set and focus just on land under vineyard as a platform for better
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Effect of microoxygenation on acetaldehyde, yeast and colour before and after malolactic fermentation on Pinot Noir wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-07-18 Y. Yang, R.C. Deed, L.D. Araujo, A.L. Waterhouse, P.A. Kilmartin
Microoxygenation (MOX) is widely used in winemaking. Its impact, however, on Pinot Noir wines has not been well documented. We investigated the influence of MOX on colour parameters and on the anthocyanin and polymeric pigment concentration of a young Pinot Noir wine. The relationship between MOX, yeast growth and acetaldehyde production was also explored.
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Influence of Saccharomyces cerevisiae autochthonous MQ3 strain on terpenes during the alcoholic fermentation of Chardonnay dry white wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-07-14 X. Zhu, X.S. Yang, Y.L. Mao, D.D. Zhao, Y.C. Li
Terpenes are major varietal aroma compounds significantly contributing to wine quality and style. Autochthonous microbial starters can promote the formation and release of the terpenes and thus highlight the terroir typicality of wines. This study compared the physicochemical parameters, changes in the terpene concentration, β-D-glucosidase activity and sensory attributes of Chardonnay wines fermented
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Feasibility of applying shotgun metagenomic analyses to grapevine leaf, rhizosphere and soil microbiome characterisation Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-06-21 D. Azevedo-Silva, J.A. Rasmussen, M. Carneiro, M.T.P. Gilbert, H. Azevedo
The characterisation of plant microbiomes using metabarcoding strategies is expected to be progressively replaced by shotgun metagenomic (SMg) approaches. In the present report we explore the potential of applying SMg to grapevine leaf, rhizosphere and soil samples.
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Volatilome of white wines as an indicator of authenticity and adulteration control using statistical analysis Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-06-01 I.K. Karabagias, V.K. Karabagias, A.V. Badeka
Wine is one of the oldest alcoholic beverages consumed by humans and its price is related to the product and quality status. The aim of this study was to investigate whether specific volatile compounds could be used as indicators of authenticity and adulteration with water.
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Growth and physiology of four Vitis vinifera L. cv. Tempranillo clones under future warming and water deficit regimes Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-05-07 M. Arrizabalaga-Arriazu, F. Morales, J.J. Irigoyen, G. Hilbert, I. Pascual
The interactive effects of simulated 2100 environmental conditions (air temperature and CO2 level) and water deficit (WD) on four clones of Vitis vinifera cv. Tempranillo were investigated.
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Identification of stable quantitative trait loci and candidate genes for sweetness and acidity in tablegrape using a highly saturated single-nucleotide polymorphism-based linkage map Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-05-20 M. Mamani, M.E. LÓpez, J. Correa, G. Ravest, P. Hinrichsen
Identifying the genes that participate in the sweetness and acidity of the berry is key, because these traits are quintessential to the flavour and quality of fresh grapes and wine. In this study we focused on the identification of genomic regions that host genes associated with sweetness and acidity in tablegrapes.
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Influence of inclusion of grapevine leaves, rachis and peduncles during fermentation on the flavour and volatile composition of Vitis vinifera cv. Shiraz wine Aust. J. Grape Wine Res. (IF 2.8) Pub Date : 2021-04-05 D.L. Capone, A. Barker, W. Pearson, I.L. Francis
The presence of matter other than grapes (MOG) is common in the winemaking process when sorting equipment is not utilised. Experimental wines were made to examine the effect of MOG on the sensory profile and chemical composition of wine.