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You searched for: Journal Australian journal of grape and wine research Remove constraint Journal: Australian journal of grape and wine research Publication Year 2016 Remove constraint Publication Year: 2016 Source 2016 v.22 no.2 Remove constraint Source: 2016 v.22 no.2
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1. Ascorbic acid and white wine production: a review of beneficial versus detrimental impacts

Author:
Barril, C.; Rutledge, D.N.; Scollary, G.R.; Clark, A.C.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 169-181
ISSN:
1322-7130
Subject:
antioxidant activity; antioxidants; ascorbic acid; oxygen; shelf life; spoilage; sulfur dioxide; white wines; winemaking
Abstract:
... We review the use of ascorbic acid in winemaking and the benefits as well as the detrimental outcomes associated with its use. Initial discussion focuses on the antioxidant activity of ascorbic acid. The impact of the wine matrix and wine production practices, especially storage in bottle and oxygen ingress, on its antioxidant efficiency is discussed. The complementary roles of the antioxidant pai ...
DOI:
10.1111/ajgw.12207

2. Comparative effects of deficit and partial root‐zone drying irrigation techniques using moderately saline water on ion partitioning in Shiraz and Grenache grapevines

Author:
Degaris, K.A.; Walker, R.R.; Loveys, B.R.; Tyerman, S.D.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 296-306
ISSN:
1322-7130
Subject:
Vitis; calcium; chlorides; deficit irrigation; fruit composition; growing season; ions; irrigation water; leaf water potential; leaves; microirrigation; monitoring; plant growth; potassium; root zone drying; saline water; sodium; stomatal conductance; vigor; vines; water use efficiency
Abstract:
... BACKGROUND AND AIMS: Deficit irrigation techniques have been used to improve water use efficiency and control vigour in grapevines, but the consequences of using saline water with these techniques have been little investigated. Here, we investigate the effect of deficit irrigation with moderately saline water on within‐vine ion allocation. METHODS AND RESULTS: Drip‐irrigated own‐rooted Shiraz and ...
DOI:
10.1111/ajgw.12220

3. Comparison of the ability of wine experts and novices to identify odorant signals: a new insight in wine expertise

Author:
Tempere, S.; Hamtat, M.‐L.; de Revel, G.; Sicard, G.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 190-196
ISSN:
1322-7130
Subject:
cognition; experts; memory; odor compounds; odors; professionals; wines
Abstract:
... BACKGROUND AND AIMS: The ability to identify odours is important in wine tasting. Contradictory results have emerged from studies comparing the olfactory identification ability of experts and novices. The aim of this study is to extend the characterisation of olfactory capacity of wine professionals and to discuss the effect of practice and training on odour identification. METHODS AND RESULTS: We ...
DOI:
10.1111/ajgw.12192

4. Damage to grape flowers and berries by Lobesia botrana larvae (Denis & Schiffernüller) (Lepidoptera: Tortricidae), and relation to larval age

Author:
Delbac, L.; Thiéry, D.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 256-261
ISSN:
1322-7130
Subject:
Lobesia botrana; Vitis; flowers; grapes; instars; integrated pest management; larvae; monitoring; moths; pests; plant damage; small fruits; vineyards; France
Abstract:
... BACKGROUND AND AIMS: Evaluation of pest damage and the population age of the pest are key factors in integrated pest management. Gaining such knowledge, however, can be time consuming and difficult in larvae that have cryptic habits, such as the European grapevine moth (EGVM, Lobesia botrana). An alternative is to measure the damage caused by different larval instars. Damage caused by different EG ...
DOI:
10.1111/ajgw.12204

5. Determining optimum harvest time under Mediterranean conditions: developing a new model for measuring L‐malic acid concentration in red grapes

Author:
Olego, M.A.; Álvarez, J.C.; Tobes, A.; de Paz, J.M.; Coque, J.J.R.; Garzón‐Jimeno, E.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 232-239
ISSN:
1322-7130
Subject:
Vitis vinifera; cultivars; grapes; harvest date; high performance liquid chromatography; malic acid; models; pH; prediction; rain; regression analysis; small fruits; titratable acidity
Abstract:
... BACKGROUND AND AIMS: Malic acid concentration varies as berries develop, reaching its highest value just before veraison. Objective criteria for choosing the optimal harvest time require chemical or physicochemical measurements; the determination of malic acid concentration is one of these. The main aim of this work was to develop a predictive model to determine the malic acid concentration in gra ...
DOI:
10.1111/ajgw.12181

6. Effect of acetaldehyde addition on the phenolic substances and volatile compounds of red Tempranillo wines

Author:
Aleixandre‐Tudo, J.L.; Lizama, V.; Álvarez, I.; Nieuwoudt, H.; García, M.J.; Aleixandre, J.L.; du Toit, W.J.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 205-214
ISSN:
1322-7130
Subject:
acetaldehyde; analysis of variance; anthocyanins; astringency; chemical composition; color; discriminant analysis; oxidation; oxygen; phenols; principal component analysis; red wines; volatile compounds; volatile fatty acids
Abstract:
... BACKGROUND AND AIMS: The introduction of controlled amounts of oxygen into red wines influences the composition of the phenolic substances and volatiles, and therefore the sensory properties of the wines. The main aim of this study was to evaluate the impact of a simulation of the micro‐oxygenation technique through acetaldehyde addition, on colour, and on the composition of phenolic substances an ...
DOI:
10.1111/ajgw.12203

7. Environmental effects on the production of Botrytis cinerea conidia on different media, grape bunch trash, and mature berries

Author:
Ciliberti, N.; Fermaud, M.; Roudet, J.; Languasco, L.; Rossi, V.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 262-270
ISSN:
1322-7130
Subject:
Botrytis cinerea; conidia; environmental factors; equations; fruit juices; genotype; grapes; growing media; heat sums; latent period; maturity stage; models; prediction; provenance; relative humidity; small fruits; sporulation; temperature; water activity
Abstract:
... BACKGROUND AND AIMS: The presence of viable sources and of conditions favourable for conidial production, dispersal and deposition is essential for a high number of Botrytis cinerea conidia to be available at host infection sites. This study investigated the effect of environmental conditions, growing media and grape organs on the sporulation of ten strains of different genotypes and geographical ...
DOI:
10.1111/ajgw.12217

8. Establishment of the soil water potential threshold to trigger irrigation of Kyoho grapevines based on berry expansion, photosynthetic rate and photosynthetic product allocation

Author:
Lou, Y.; Miao, Y.; Wang, Z.; Wang, L.; Li, J.; Zhang, C.; Xu, W.; Inoue, M.; Wang, S.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 316-323
ISSN:
1322-7130
Subject:
Vitis; developmental stages; diurnal variation; irrigation rates; irrigation scheduling; isotope labeling; models; peas; photogrammetry; photosynthesis; researchers; soil water; soil water potential; stable isotopes; time series analysis; viticulture; water conservation
Abstract:
... BACKGROUND AND AIMS: Irrigation is an important management practice in viticulture. Irrigation scheduling established by previous researchers was based mainly on the irrigation level for optimal berry composition and size at harvest. Because eventual berry size and composition depend on the accumulation of daily growth, a more precise study must be implemented to establish the soil water potential ...
DOI:
10.1111/ajgw.12208

9. Grape root as habitat: overwintering and population dynamics of grape phylloxera (Daktulosphaira vitifoliae Fitch) in temperate climate viticulture

Author:
Hoffmann, M.; Ruehl, E.H.; Eisenbeis, G.; Huber, L.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 271-278
ISSN:
1322-7130
Subject:
Daktulosphaira vitifoliae; Vitis cinerea var. helleri; grapes; habitats; larvae; overwintering; pests; phenotype; pigmentation; population dynamics; reproduction; root galls; roots; rootstocks; soil sampling; temperate zones; viticulture
Abstract:
... BACKGROUND AND AIMS: Daktulosphaira vitifoliae Fitch (grape phylloxera, Phylloxeridae) is one of the most devastating pests in viticulture, mainly because of their root feeding activity. Up to today fundamental relations between belowground habitat and population dynamics remain unclear. In this 2‐year study, we investigated the relations between grape phylloxera population and phenotypic traits o ...
DOI:
10.1111/ajgw.12219

10. Impact of recent climate change and weather variability on the viability of UK viticulture – combining weather and climate records with producers' perspectives

Author:
Nesbitt, A.; Kemp, B.; Steele, C.; Lovett, A.; Dorling, S.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 324-335
ISSN:
1322-7130
Subject:
climate; climate change; growing season; meteorological data; models; qualitative analysis; quantitative analysis; sparkling wines; steers; temperature; viability; vines; vineyards; viticulture; wine cultivars; United Kingdom
Abstract:
... BACKGROUND AND AIMS: From 2004 to 2013, the vineyard area in the United Kingdom (UK) increased 148%. Observed climate change and underlying weather variability were assessed for their influence on the development and viability of UK viticulture. METHODS AND RESULTS: The perspectives of grapegrowers in the UK on climate change and weather variability were complemented by a quantitative analysis of ...
DOI:
10.1111/ajgw.12215

11. Influence of berry diameter and colour on some determinants of wine composition of Vitis vinifera L. cv. Riesling

Author:
Friedel, M.; Sorrentino, V.; Blank, M.; Schüttler, A.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 215-225
ISSN:
1322-7130
Subject:
Vitis vinifera; chemical composition; color; fermentation; glycosylation; malic acid; monoterpenoids; nitrogen; norisoprenoids; odor compounds; odors; pH; phenolic compounds; small fruits; titratable acidity; vines; vineyards; wine quality; winemaking; wines
Abstract:
... BACKGROUND AND AIMS: To successfully use berry sorting in winemaking, it is crucial to understand the interaction of physical and chemical composition of berries. The aim of this study was to investigate the relationship between berry diameter and colour and aspects of wine composition, such as titratable acidity, aroma compounds and phenolic substances of Vitis vinifera L. cv. Riesling. METHODS A ...
DOI:
10.1111/ajgw.12210

12. Manipulation of ripening via antitranspirants in cv. Barbera (Vitis vinifera L.)

Author:
Gatti, M.; Galbignani, M.; Garavani, A.; Bernizzoni, F.; Tombesi, S.; Palliotti, A.; Poni, S.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 245-255
ISSN:
1322-7130
Subject:
Vitis vinifera; alcohols; anthocyanins; antitranspirants; brix; color; emulsions; flavor; gas exchange; global warming; ripening; sugars; vines; wines; yield components
Abstract:
... BACKGROUND AND AIMS: Accelerated berry sugar accumulation resulting in wines of excessive alcohol concentration, sub‐optimal colour and atypical flavour has become increasingly frequent in warm growing districts, a trend induced by factors that include global warming. The application of a film‐forming antitranspirant may be an effective way of reducing early sugar accumulation without affecting co ...
DOI:
10.1111/ajgw.12212

13. Optimisation of time of application of Trichoderma biocontrol agents for protection of grapevine pruning wounds

Author:
Mutawila, C.; Halleen, F.; Mostert, L.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 279-287
ISSN:
1322-7130
Subject:
Trichoderma; Vitis; application timing; biological control agents; cultivars; decline; dormancy; pathogens; physiological state; pruning; vines; weather; winter
Abstract:
... BACKGROUND AND AIMS: The application of Trichoderma species on grapevine pruning wound surfaces reduces wound infection from trunk pathogens that cause grapevine decline. The aim of this study was to determine the efficacy of pruning wound treatments containing Trichoderma as influenced by the time of pruning and time of application following pruning. METHODS AND RESULTS: Cultivars Chenin Blanc an ...
DOI:
10.1111/ajgw.12218

14. Qualitative study of alcohol consumers who choose to avoid wine

Author:
McIntyre, E.; Ovington, L.A.; Saliba, A.J.; Moran, C.C.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 182-189
ISSN:
1322-7130
Subject:
adults; alcohols; focus groups; marketing strategies; people; purchasing; social behavior; taste; wine industry; wines
Abstract:
... BACKGROUND AND AIMS: This study aimed to investigate the similarities and differences in the reasons why alcohol consumers choose to avoid purchasing or consuming wine across five countries, and to investigate similarities and differences across three generations. METHODS AND RESULTS: Adults who consumed alcohol regularly, in healthy quantities, but rarely or never consumed wine were recruited fro ...
DOI:
10.1111/ajgw.12182

15. Rachis browning in tablegrapes

Author:
Lichter, A.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 161-168
ISSN:
1322-7130
Subject:
antagonists; control methods; ethylene; freshness; packaging; plant growth; sulfur dioxide; table grapes; wastes
Abstract:
... Rachis browning is considered the second most important postharvest problem of tablegrapes. The primary problem, control of decay, was extensively studied in recent years, often with minor attention to rachis browning. To the consumer, a green rachis is an indication of freshness, and hence, a brown rachis can be a major cause of consumer rejection and eventually fruit waste. The significant advan ...
DOI:
10.1111/ajgw.12205

16. Sensory effect of acetaldehyde on the perception of 3‐mercaptohexan‐1‐ol and 3‐isobutyl‐2‐methoxypyrazine

Author:
Coetzee, C.; Brand, J.; Jacobson, D.; Du Toit, W.J.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 197-204
ISSN:
1322-7130
Subject:
acetaldehyde; apples; odors; oxidation; sensory evaluation; sweet peppers; white wines; winemaking
Abstract:
... BACKGROUND AND AIMS: Wine aroma is influenced by complex interactions between various wine constituents. This study investigated the sensory interactive effects of Sauvignon Blanc impact compounds, 3‐mercaptohexan‐1‐ol and 3‐isobutyl‐2‐methoxypyrazine, with acetaldehyde that typically forms during the oxidation of wine. METHODS AND RESULTS: Spiked model wines were subjected to sensory descriptive ...
DOI:
10.1111/ajgw.12206

17. Stilbene profiles in different tissues of Vitis vinifera L. cv. Cabernet Sauvignon and a comparison of their antioxidant activity

Author:
Wei, Y.‐J.; Zhao, S.‐R.; Li, J.‐M.; Xue, B.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 226-231
ISSN:
1322-7130
Subject:
Vitis vinifera; antioxidant activity; electron paramagnetic resonance spectroscopy; grapes; health promotion; hydroxyl radicals; leaves; models; nitric oxide; roots; seeds; stems; stilbenes; tissues; viniferins
Abstract:
... BACKGROUND AND AIMS: Stilbenes are an important group of phenolic substances that exist in roots, stems, leaves, skins and seeds. But little work has been performed to characterise the composition of grape root or to measure the antioxidant capacity of several stilbenes with hydroxyl radicals,1,1‐diphenyl‐2‐picrylhydrazyl and nitric oxide free radicals. METHODS AND RESULTS: Stilbenes were analysed ...
DOI:
10.1111/ajgw.12230

18. Time‐course study of grape berry split using diffusion magnetic resonance imaging

Author:
Dean, R.J.; Bobek, G.; Stait‐Gardner, T.; Clarke, S.J.; Rogiers, S.Y.; Price, W.S.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 240-244
ISSN:
1322-7130
Subject:
cell death; diffusivity; grapes; image analysis; imbibition; magnetic resonance imaging; oxygen; pathogens; pericarp; small fruits; spectrometers; surface water; viticulture
Abstract:
... BACKGROUND AND AIMS: Fruit split is a well‐known source of fruit loss in viticulture. Previous investigations on this topic have focused on determining the factors that influence the occurrence of fruit split. The purpose of this study was to examine and characterise the immediate effect of fruit split on grape tissue structure using diffusion magnetic resonance imaging (MRI). METHODS AND RESULTS: ...
DOI:
10.1111/ajgw.12184

19. Various fungal communities colonise the functional wood tissues of old grapevines externally free from grapevine trunk disease symptoms

Author:
Bruez, E.; Baumgartner, K.; Bastien, S.; Travadon, R.; Guérin‐Dubrana, L.; Rey, P.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 288-295
ISSN:
1322-7130
Subject:
Eutypa; Trichoderma; Vitis; cultivars; dieback; fungal communities; fungal diseases of plants; hybrids; internal transcribed spacers; mycoparasites; plant pathogenic fungi; planting; saprophytes; single-stranded conformational polymorphism; tissues; vines; vineyards; wood; France
Abstract:
... BACKGROUND AND AIMS: The objective of this study was to analyse the various fungal communities that colonise functional wood tissues of old vines that did not express symptoms of grapevine trunk diseases (i.e. Esca and Eutypa dieback) in the year of sampling. Plants of the cultivar Baco Blanc a grapevine hybrid of Folle Blanche and Noah used to produce Armagnac in France were sampled. METHODS AND ...
DOI:
10.1111/ajgw.12209

20. Vineyard irrigation scheduling based on airborne thermal imagery and water potential thresholds

Author:
Bellvert, J.; Zarco‐Tejada, P.J.; Marsal, J.; Girona, J.; González‐Dugo, V.; Fereres, E.
Source:
Australian journal of grape and wine research 2016 v.22 no.2 pp. 307-315
ISSN:
1322-7130
Subject:
adverse effects; aircraft; canopy; deficit irrigation; irrigation scheduling; leaf water potential; monitoring; rain; remote sensing; vapor pressure; vegetation; vines; vineyards; wines
Abstract:
... BACKGROUND AND AIMS: Mapping the spatial variability of vine water status within a vineyard is necessary for the efficient management of irrigation water. The objective of this study was to determine whether estimates of remotely sensed leaf water potential (Ψᵣₑₘ) could be employed as a precise tool for scheduling irrigation at the irrigation sector level throughout the season. METHODS AND RESULTS ...
DOI:
10.1111/ajgw.12173