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Evidence that methoxypyrazine accumulation is elevated in Shiraz rachis grown on Ramsey rootstock, increasing ‘green’ flavour in wine 有证据表明,在拉姆齐砧木上生长的设拉子中,甲氧基吡嗪的积累会增加,从而增加葡萄酒的“绿色”风味
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-03-27 DOI: 10.1111/ajgw.12551
D.L. Capone, I.L. Francis, P.R. Clingeleffer, S.M. Maffei, P.K. Boss

Background and Aims

‘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.

Methods and Results

GC/MS-olfactometry and stable isotope dilution analysis methods were used to identify and quantify a range of volatile compounds associated with ‘green’ sensory characters in Shiraz wine made from grapes grafted on Ramsey and Dog Ridge rootstocks. These wines were higher in this character compared to wines from Merbein 6262, a low vigour rootstock. GC-olfactometry identified the compound responsible for this intense ‘green’ aroma to be 3-isobutyl-2-methoxypyrazine, which was not detected in Shiraz grape berries but was found at significantly higher concentration in rachis tissue from bunches grown on Ramsey rootstock compared to own-roots.

Conclusions

Grape rachis inclusion is the most probable cause of the 3-isobutyl-2-methoxypyrazine concentration in the Shiraz wines, and rootstocks can influence the accumulation of methoxypyrazines in the rachis.

Significance of the Study

Methoxypyrazines in rachis tissues have the potential to impart ‘green’ sensory characters in wines of cultivars not known to produce methoxypyrazines in the berries. Other volatile aroma compounds were found to be affected by rootstocks which may also be useful in targeting rootstocks to give a desired wine style.

背景与目的在不同砧木生产的葡萄酒中观察了设拉子葡萄酒的“绿色”感官特征。由于这些属性通常被视为负面的,因此对负责的化合物进行了研究。方法与结果采用气相色谱/质谱-嗅觉法和稳定同位素稀释法对嫁接在拉姆齐(Ramsey)和狗岭(Dog Ridge)砧木上的葡萄制成的设拉子(Shiraz)葡萄酒中与“绿色”感官性状相关的挥发性化合物进行了鉴定和定量。这些葡萄酒在这一特性上比来自Merbein 6262的葡萄酒更高,这是一个低活力的砧木。气相色谱-嗅觉测定法鉴定出产生这种强烈的“绿色”香气的化合物是3-异丁基-2-甲氧基吡嗪,这种化合物在设拉子葡萄浆果中没有检测到,但在拉姆齐根茎上生长的串的轴组织中发现的浓度明显高于自己的根。结论葡萄轴包膜是造成设拉子葡萄酒中3-异丁基-2-甲氧基吡嗪含量的最可能原因,而砧木会影响甲氧基吡嗪在葡萄轴中的积累。研究的意义轴组织中的甲氧基吡嗪有可能赋予葡萄酒的“绿色”感官特征,而不知道在浆果中产生甲氧基吡嗪的品种。其他挥发性香气化合物也被发现受到砧木的影响,这也可能有助于以砧木为目标,以获得所需的葡萄酒风格。
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引用次数: 4
Foreword to the special issue of the Australian Journal of Grape and Wine Research highlighting the research of the Commonwealth Scientific and Industrial Research Organisation in viticulture 《澳大利亚葡萄与葡萄酒研究杂志》特刊的前言,重点介绍了英联邦科学与工业研究组织在葡萄栽培方面的研究
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-03-27 DOI: 10.1111/ajgw.12554

This special issue of the Australian Journal of Grape and Wine Research has been produced to recognise the contribution, over the last 60 years, of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) to viticulture research in support of the development and ongoing success of the Australian wine-, dried- and tablegrape industries.

The involvement of the CSIRO with viticulture research and development can be traced back to the 1927 when the Council for Scientific and Industrial Research, forerunner of CSIRO, assumed control of the Merbein Research Station in Victoria which had been established in 1920. Sixty years ago, in 1962, major changes were made to the research directions of the research station, including an expanded focus on viticulture, along with renaming of the facility to the Horticulture Research Station. In 1963, a second laboratory was built on the campus of the Waite Agricultural Research Institute in Adelaide, South Australia which became the headquarters of the CSIRO Division of Horticultural Research in 1967, encompassing the research activities of both centres.

Prior to 1962, the CSIRO's viticultural research portfolio was focused mainly on various aspects of the growth and management of Sultana vines for driedgrape production. With the expansion of the research facilities, however, and wider recognition of the potential for wine industry development, CSIRO's focus shifted to include an increased emphasis on winegrape research, corresponding with the renewed interest, at that time, in winegrape production along the River Murray.

Many of these discoveries have the potential to underpin the development of improved grapevine germplasm and management techniques to meet the future challenges faced by the Australian viticultural industries.

This special edition contains 11 articles that have been reviewed through the peer-review process of the Australian Journal of Grape and Wine Research. The articles reflect some of the major areas of viticultural research that have been undertaken by CSIRO over the last 10–20 years, including precision viticulture, grapevine breeding and genetics, rootstock physiology, tolerance to biotic and abiotic stress, the regulation of berry development and the genetic regulation of the biosynthesis of grape-derived flavour and aroma compounds.

Thanks to the Journal's editorial panel and reviewers for making this issue possible. The contributions of the many CSIRO staff and of our numerous collaborators over the last 60 years, both here in Australia and overseas, some of whom are represented as co-authors on the papers in this issue, are acknowledged. In particular, we would like to thank our colleagues from The Australian Wine Research Institute, The University of Adelaide, the South Australian Research and Development Institute and other State agencies, and Charles Sturt University for their important contributions. We also acknowledge va

本期《澳大利亚葡萄与葡萄酒研究杂志》特刊旨在表彰联邦科学与工业研究组织(CSIRO)在过去60年里对葡萄栽培研究的贡献,这些研究支持了澳大利亚葡萄酒、干葡萄和食用葡萄行业的发展和持续成功。CSIRO对葡萄栽培研究和发展的参与可以追溯到1927年,当时CSIRO的前身科学和工业研究委员会接管了成立于1920年的维多利亚Merbein研究站。60年前,1962年,研究站的研究方向发生了重大变化,包括扩大对葡萄栽培的关注,并将该设施更名为园艺研究站。1963年,第二个实验室在南澳大利亚阿德莱德的韦特农业研究所的校园里建立,1967年成为CSIRO园艺研究部门的总部,包括两个中心的研究活动。在1962年之前,CSIRO的葡萄栽培研究组合主要集中在苏丹葡萄的生长和管理的各个方面,以生产干葡萄。然而,随着研究设施的扩大,以及对葡萄酒行业发展潜力的广泛认识,CSIRO的重点转移到增加对酿酒葡萄研究的重视,这与当时对默里河沿岸酿酒葡萄生产的新兴趣相对应。许多这些发现都有潜力支持葡萄种质改良和管理技术的发展,以应对澳大利亚葡萄产业面临的未来挑战。这个特别版包含11篇文章,这些文章已经通过澳大利亚葡萄和葡萄酒研究杂志的同行评审过程进行了审查。这些文章反映了CSIRO在过去10-20年中所进行的葡萄栽培研究的一些主要领域,包括精确葡萄栽培,葡萄育种和遗传学,砧木生理学,对生物和非生物胁迫的耐受性,浆果发育的调控以及葡萄衍生风味和香气化合物的生物合成的遗传调控。感谢《华尔街日报》的编辑小组和审稿人使本期成为可能。在过去的60年里,CSIRO的许多工作人员和我们在澳大利亚和海外的众多合作者做出了贡献,其中一些人是本期论文的共同作者,我们对他们的贡献表示感谢。我们特别要感谢澳大利亚葡萄酒研究所、阿德莱德大学、南澳大利亚研究与发展研究所等国家机构和查尔斯特大学的同事们的重要贡献。我们也感谢来自葡萄酒、干葡萄和鲜食葡萄的高峰机构的许多行业代表提供的宝贵意见,以及葡萄和葡萄酒生产商提供的支持和鼓励。我们特别感谢我们的主要资助者澳大利亚葡萄酒公司和霍尔特创新公司及其前身的宝贵支持。michael van Lookeren campagne博士,CSIRO农业与食品部主任
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引用次数: 0
Rootstock-conferred traits affect the water use efficiency of fruit production in Shiraz 砧木赋予性状影响设拉子果实生产的水分利用效率
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-03-27 DOI: 10.1111/ajgw.12553
E.J. Edwards, A. Betts, P.R. Clingeleffer, R.R. Walker

Background and Aims

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 water use index (yield per unit water transpired) were linked.

Methods and Results

Seven rootstock genotypes, grafted with Shiraz, in a trial established over 20 years previously, were assessed over four seasons for vigour, yield and leaf physiology, and over three seasons for whole vine transpiration using sapflow sensors. There were consistent differences in rootstock conferred traits, with yield being affected to a lesser extent than vigour or vine water use.

Conclusions

The water use efficiency of fruit production was improved for Shiraz on low vigour conferring rootstocks, due to a combination of rootstock conferred effects on scion vigour, leaf gas exchange, whole vine transpiration and yield.

Significance of the Study

The study has demonstrated that rootstock conferred traits can alter the crop water use index of the scion in a mature vineyard. Consequently, accurately matching irrigation application with vigour and leaf physiology traits of the chosen rootstock has the potential to be used as a tool to optimise vineyard water use efficiency, even in fully irrigated vineyards.

背景与目的砧木类型通过赋予接穗特定性状而导致接穗冠层生长和果实产量的差异。赋予性状可能相互作用,改变葡萄水分利用与果实产量之间的关系,为利用砧木提高果实生产的水分利用效率提供了一种机制。本研究旨在确定砧木赋予活力和作物水分利用指数(单位水分蒸腾产量)是否相关。方法和结果在20多年前建立的一项试验中,对7种砧木基因型嫁接设拉子,在4个季节中评估了活力、产量和叶片生理,并在3个季节中使用sapflow传感器评估了全株蒸腾。在砧木赋予性状上存在一致的差异,产量受到的影响程度小于活力或葡萄藤水分利用。结论低活力砧木对穗活力、叶片气体交换、全株蒸腾和产量的综合影响,提高了设拉子果实生产的水分利用效率。研究的意义研究表明,砧木赋予性状可以改变成熟葡萄园接穗的作物水分利用指数。因此,即使在完全灌溉的葡萄园,准确匹配灌溉应用与所选砧木的活力和叶片生理特征,也有可能被用作优化葡萄园用水效率的工具。
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引用次数: 4
Development of new wine-, dried- and tablegrape scions and rootstocks for Australian viticulture: past, present and future 澳大利亚葡萄栽培的新葡萄酒、干葡萄和食用葡萄接穗和砧木的发展:过去、现在和未来
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-03-09 DOI: 10.1111/ajgw.12552
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 and evaluation of the Salt Creek (syn. Ramsey) rootstock which provided tolerance to root-knot nematodes and salinity and became the most widely adopted rootstock for the emerging Australian wine industry in the 1980–1990s. The CSIRO has also successfully bred or released several new grape cultivars. While the adoption rate for the CSIRO wine cultivars has been limited, CSIRO-selected cultivars dominate the Australian driedgrape industry, while CSIRO-released cultivars continue to play an important role in the Australian tablegrape industry. In the 1990s, CSIRO commenced the application of molecular biology techniques for grapevine germplasm improvement. Researchers from CSIRO were some of the first in the world to successfully regenerate transgenic grapevines and demonstrate the potential of this technology to produce low-browning driedgrapes and mildew-resistant premium winegrapes. More recently, the focus has shifted to the mapping of resistance loci from wild grape species and their introgression into new winegrape scions to provide resistance to mildews and new rootstocks to provide durable resistance to rootknot nematodes and phylloxera. Finally, this review considers some future challenges faced by the Australian grape industries and how these might be addressed using conventional or molecular breeding strategies.

这篇综述强调了CSIRO对澳大利亚酿酒葡萄、干葡萄和食用葡萄行业新接穗和砧木发展的贡献。最初,CSIRO在选择高产的Sultana无性系方面发挥了关键作用,这些无性系在20世纪70年代贡献了澳大利亚葡萄总产量的一半以上,用于酿酒和干葡萄生产。它还负责进口和评估Salt Creek(同名Ramsey)砧木,该砧木具有耐根结线虫和盐度的能力,并成为20世纪80年代至90年代新兴澳大利亚葡萄酒行业最广泛采用的砧木。CSIRO还成功培育或发布了几种新的葡萄品种。虽然CSIRO葡萄酒品种的采用率有限,但CSIRO选择的品种主导着澳大利亚的干葡萄产业,而CSIRO发布的品种继续在澳大利亚的食葡萄产业中发挥重要作用。在20世纪90年代,CSIRO开始将分子生物学技术应用于葡萄种质改良。CSIRO的研究人员是世界上第一批成功再生转基因葡萄藤的人,他们展示了这种技术在生产低褐变干葡萄和抗霉优质酿酒葡萄方面的潜力。最近,研究的重点已转移到野生葡萄品种的抗性位点的定位及其向新酿酒葡萄接穗的渗透,以提供对霉病的抗性,以及新的砧木,以提供对根结线虫和根瘤蚜的持久抗性。最后,本综述考虑了澳大利亚葡萄产业未来面临的一些挑战,以及如何使用传统或分子育种策略来解决这些挑战。
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引用次数: 1
Rootstock type influences salt exclusion response of grafted Shiraz under salt treatment at elevated root zone temperature 提高根区温度下,砧木类型对嫁接设拉子的排盐反应有影响
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-03-06 DOI: 10.1111/ajgw.12550
R.R. Walker, D.H. Blackmore, J.D. Dunlevy, E.J. Edwards, A.R. Walker

Background and Aims

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.

Methods and Results

Glasshouse grown Shiraz on 140 Ruggeri, K51-40 and six K51-40 × 140 Ruggeri hybrid rootstocks were assessed at a cool (mean 19.3°C) and hot (mean 30.8°C) RZ temperature, plus or minus salt treatment of 50 mmol/L chloride with mixed cations. After 28 days, plants were destructively harvested. Chloride concentration in laminae, petioles and roots and cation concentration in laminae and roots were measured. All rootstocks showed enhanced shoot sodium exclusion under salt treatment at the hot RZ temperature demonstrated by significantly lower sodium concentration in laminae and higher concentration in roots. Shoot chloride exclusion capacity of salt-treated K51-40 declined, while that of 140 Ruggeri and two hybrid rootstocks improved at the hot RZ temperature.

Conclusions

Shoot chloride exclusion varied widely among rootstock genotypes subjected to salinity and hot RZ temperature, compared with shoot sodium exclusion, reflecting its control by multiple genes and apparent differential sensitivity to environmental cues.

Significance of the Study

The genetic potential of 140 Ruggeri to enhance shoot sodium and chloride exclusion at elevated RZ temperature was demonstrated, highlighting its potential as a breeding parent for rootstock improvement, to meet anticipated future challenges of rising RZ temperature and salinity.

背景与目的土壤上层区的温度与盛行气温有较强的相关性,但相对滞后。根区温度对茎部排盐的影响尚不清楚。目的是为了更好地了解RZ温度对嫁接到一系列砧木基因型上的设拉子的耐盐性、生长和气孔导度的影响。方法与结果对140 Ruggeri、K51-40和6个K51-40 × 140 Ruggeri杂交砧木在冷(平均19.3°C)和热(平均30.8°C) RZ温度下,外加或负加50 mmol/L氯化物混合阳离子盐处理下的温室栽培设拉子进行了评价。28天后,植物被破坏性地收割。测定了叶片、叶柄和根中的氯离子浓度以及叶片和根中的阳离子浓度。在热RZ温度下,所有砧木在盐处理下均表现出较强的茎部排钠能力,表现为膜层钠浓度显著降低,根部钠浓度显著升高。在热RZ温度下,K51-40的茎部排氯能力下降,而140 Ruggeri和两个杂交砧木的茎部排氯能力提高。结论不同砧木基因型对盐和热RZ温度下茎部氯离子的排斥差异较大,反映了其受多基因控制和对环境因素的明显差异敏感性。研究表明,Ruggeri 140在高RZ温度下提高茎部钠和氯化物排他性的遗传潜力,突出了其作为砧木改良的育种亲本的潜力,以应对预期的未来RZ温度和盐度升高的挑战。
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引用次数: 1
Sparging of white wine 喷出白葡萄酒
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-02-28 DOI: 10.1111/ajgw.12541
J. Walls, S. Sutton, C. Coetzee, W.J. du Toit

Background and Aims

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 related factors affecting its efficacy.

Methods and Results

Chenin Blanc and Sauvignon Blanc white wines were exposed to several sparging regimes to evaluate the effect of gas flow rate, wine temperature, gas composition, bubble size, repeated sparging and extended sparging on sparging efficacy and wine composition.

Conclusions

Bubble size and wine temperature were the two main factors that influenced sparging efficacy the most. Sparging with nitrogen gas does not appear to influence the chemical composition of the wine to a large extent, except in the case of dissolved CO2 concentration; however, sensory studies on its effects are required.

Significance of the Study

Sparging appears to be a safe practice for wine producers to lower dissolved oxygen concentration in wine if lost dissolved CO2 can be replenished.

背景与目的在葡萄酒工业中经常使用惰性气体来降低葡萄酒中的溶解氧浓度。然而,这种做法是否会影响葡萄酒的成分,以及影响起泡效果的理化因素和操作因素,目前尚不清楚。本研究的主要目的是评估气泡对白葡萄酒成分的影响,并阐明影响其功效的酿酒相关因素。方法与结果对白诗南白葡萄酒和长相思白葡萄酒进行不同的起泡方式,考察气体流速、酒温、气体成分、气泡大小、反复起泡和延长起泡时间对起泡效果和酒成分的影响。结论气泡大小和酒温是影响起泡效果最大的两个主要因素。除溶解的二氧化碳浓度外,用氮气喷射似乎不会在很大程度上影响葡萄酒的化学成分;然而,需要对其影响进行感官研究。研究的意义对于葡萄酒生产商来说,如果失去的溶解的二氧化碳可以被补充,那么喷射似乎是降低葡萄酒中溶解氧浓度的一种安全的做法。
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引用次数: 2
Novel use of activated carbon fabric to mitigate smoke taint in grapes and wine 活性炭织物的新用途,以减轻葡萄和葡萄酒的烟雾污染
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-02-27 DOI: 10.1111/ajgw.12548
K.L. Wilkinson, R. Ristic, C. Szeto, D.L. Capone, L. Yu, D. Losic

Background and Aims

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.

Methods and Results

Smoke was applied to Mataro grapes, with and without individual bunches being enclosed in bags made from three activated carbon fabrics (felt, light cloth and heavy cloth). Wine made from smoke-exposed grapes had an elevated concentration of volatile phenols, but the composition of wines made from grapes protected by activated carbon fabric was comparable to that of the Control wine; the difference in concentration of guaiacol, o- and m-cresol and/or syringol was only 1 μg/L. Wine made from smoke-exposed grapes had diminished fruit and prominent smoke characters, whereas the sensory profile of the wines corresponding to activated carbon fabric treatments could not be differentiated from that of the Control wine. Analysis by GC/MS of the activated carbon fabrics following repeated smoke exposure confirmed their adsorption of smoke volatiles.

Conclusions

The activated carbon fabrics successfully protected Mataro grapes and wine from being tainted by smoke exposure.

Significance of the Study

This study demonstrates a promising new technology for overcoming smoke taint, an issue of major concern for grape and wine producers worldwide.

背景和目的世界各地的葡萄种植者和酿酒师都在寻找策略,以减轻葡萄藤暴露在野火烟雾中的成分和感官后果。本研究评估了活性炭织物作为保护覆盖物的使用,以减轻葡萄对烟雾衍生的挥发性酚的吸收,并相应地评估了葡萄酒中烟熏和灰白色特征的强度。方法和结果对Mataro葡萄进行烟熏,将有和没有单独束的葡萄包裹在由三种活性炭织物(毛毡、薄布和厚布)制成的袋子中。用暴露在烟雾中的葡萄酿制的葡萄酒挥发性酚浓度升高,但用活性炭织物保护的葡萄酿制的葡萄酒的成分与对照葡萄酒相当;愈创木酚、邻甲酚、间甲酚和/或丁香酚的浓度差异仅为1 μg/L。用烟熏葡萄酿造的葡萄酒果实减少,烟熏特征突出,而活性炭织物处理后的葡萄酒的感官特征与对照葡萄酒没有区别。通过GC/MS分析,证实了活性炭织物对烟气挥发物的吸附作用。结论活性炭织物成功地保护了玛塔罗葡萄和葡萄酒免受烟雾污染。这项研究展示了一种有前途的新技术来克服烟雾污染,这是全球葡萄和葡萄酒生产商主要关注的问题。
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引用次数: 1
Assessment of phenology, growth characteristics and berry composition in a hot Australian climate to identify wine cultivars adapted to climate change 评估物候,生长特征和浆果成分在炎热的澳大利亚气候,以确定适应气候变化的葡萄酒品种
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-02-27 DOI: 10.1111/ajgw.12544
P.R. Clingeleffer, H.P. Davis

Background and Aims

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.

Methods and Results

The study involved 465 cultivars assessed over four seasons. Differences in key traits included a 5-week range in budburst; a 4-month harvest window; a twofold difference in the growth period from budburst to harvest; a fivefold difference in fruitfulness and in leaf area index; a 15-fold difference in berry mass; and a five- to 15-fold difference in berry mineral ion concentration and large differences in fruit composition. The latter included pH (range 3.48–4.95), titratable acidity (1.60–9.07 g/L), tartaric acid (2.20–7.95 g/L), malic acid (0.80–7.74 g/L), yeast assimilable nitrogen (70–505 mg/L) and, in red wine cultivars, total anthocyanins (0.04–5.79 mg/g) and phenolic compounds (0.55–3.60 a.u.).

Conclusions

Cultivars grown under hot conditions with late budburst to minimise frost risks; short growth periods and small canopies to improve water use efficiency; and early and late ripening to extend the season have been identified. Early ripening cultivars had better fruit composition than late ripening cultivars.

Significance

Opportunities to broaden genetic diversity will enhance the capability of the wine industry to meet challenges associated with climate change. Poor fruit composition, however, associated with high pH is a limiting factor under hot conditions.

背景与目的对澳大利亚炎热地区的CSIRO种质资源进行物候、生长性状和果实组成评估,以确定适应气候变化的品种。方法与结果对465个品种进行了四季评估。关键性状的差异包括:芽期的5周范围;4个月的收获期;从发芽到收获的生长期有两倍的不同;结果与叶面积指数有五倍的差异;浆果质量相差15倍;在浆果矿物质离子浓度上有5到15倍的差异,在水果成分上也有很大的差异。后者包括pH值(3.48-4.95)、可滴定酸度(1.60-9.07 g/L)、酒石酸(2.20-7.95 g/L)、苹果酸(0.80-7.74 g/L)、酵母可吸收氮(70-505 mg/L),以及红葡萄酒品种的总花青素(0.04-5.79 mg/g)和酚类化合物(0.55-3.60 a.u)。结论在高温条件下种植芽期较晚的品种可降低霜冻风险;生长期短,树冠小,提高水分利用效率;早熟和晚熟可以延长季节。早熟品种的果实组成优于晚熟品种。扩大遗传多样性的机会将提高葡萄酒行业应对气候变化挑战的能力。然而,在高温条件下,与高pH值相关的水果成分差是一个限制因素。
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引用次数: 3
Characterising spatio-temporal variation in fruit composition for improved winegrowing management in California Cabernet Sauvignon 加州赤霞珠葡萄果实组成的时空变化特征及其对葡萄栽培管理的影响
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-02-27 DOI: 10.1111/ajgw.12542
B. Sams, R.G.V. Bramley, L. Sanchez, N.K. Dokoozlian, C.M. Ford, V. Pagay

Background and Aims

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 with remotely sensed canopy vegetation data to assess its utility in underpinning targeted management.

Methods and Results

The composition of fruit samples were analysed to compare their spatial variability with aerial imagery products, the normalised difference vegetation index (NDVI) and the difference between canopy temperature from imagery (Tc) and ambient temperature from ground weather stations (Ta), (Tc − Ta). Zonal discrimination of fruit composition using k-means clusters generated from seasonal aerial imagery showed a difference as high as 2.7 kg/m in vine yield, up to 0.3 mg/g anthocyanins and 1.2 pg/g carbon-6 alcohols and aldehydes (C6) with these ‘quality zones’ reflected by the imagery in some vineyards and/or seasons.

Conclusions

The NDVI and (Tc − Ta) data collected at multiple time points were correlated with several attributes of fruit composition evaluated at harvest, but most correlations peaked at veraison. They were also strongest in vineyards in which the spatial variation showed stronger spatial structure.

Significance of the Study

Spatial variations in berry chemistry followed similar patterns to those seen in aerial imagery of vineyards with structured vigour zones. Furthermore, as most of the spatial structure in the variation of fruit composition is dominated by flavanols, opportunities for reduced analytical costs in winery laboratories also arise.

背景和目的酿酒葡萄的产量和果实成分的空间变异性已经得到证实,但很少有影响葡萄酒成分的化学成分在足够高的样品密度下被分析,以与遥感图像的变异性进行比较。该项目的目的是评估三个季节收获时葡萄成分的空间变异性,并将其与遥感冠层植被数据进行比较,以评估其在支持有针对性管理方面的效用。方法与结果分析了水果样品的组成,比较了它们与航空影像产品、归一化植被指数(NDVI)以及影像冠层温度(Tc)与地面气象站环境温度(Ta)、(Tc−Ta)之间的空间变异性。利用季节航拍图像生成的k-means集群对果实成分进行地带区分,结果表明,葡萄产量的差异高达2.7 kg/m,花青素的差异高达0.3 mg/g,碳-6醇和醛(C6)的差异高达1.2 pg/g,这些“品质区”在某些葡萄园和/或季节的图像中得到了反映。结论在多个时间点采集的NDVI和(Tc - Ta)数据与收获时评估的果实成分的多个属性存在相关性,但大多数相关性在收获时达到峰值。它们在葡萄园中表现最强,空间变异表现出较强的空间结构。研究的意义浆果化学的空间变化遵循与具有结构活力区的葡萄园的航空图像相似的模式。此外,由于水果成分变化的大部分空间结构是由黄烷醇主导的,因此也出现了降低酒厂实验室分析成本的机会。
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引用次数: 4
Research trends in the oenological and viticulture sectors 酿酒和葡萄栽培领域的研究趋势
IF 2.8 3区 农林科学 Q1 Agricultural and Biological Sciences Pub Date : 2022-02-26 DOI: 10.1111/ajgw.12546
A. Cimini, M. Moresi

Background and Aims

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.

Methods and Results

The scientific research in both sectors was active in 2020 with 2000–2500 publications per year. Owing to their long tradition in wine production, Italy, Spain and France were the main publishing nations, even if other nations, such as the USA, China and Australia, started to be interested in wine production. In the oenological sector, the highest number of articles were published by researchers working in French and Spanish highly specialised institutions. Over the 1950–2020 period, the Journal of Agricultural and Food Chemistry has been the most cited. Over the last 5 years, other journals, such as Food Chemistry, Molecules and Oeno One, have gained reputation; furthermore, from the bibliographic map analysis the antioxidant activity of anthocyanidin and polyphenols has been the topic most studied, followed by the genetics of grapevine and yeast, and methods of analysis to determine volatile, nutritional and anti-nuisance compounds.

Conclusions

In contrast to the beer sector, current wine research has probably taken for granted the negative implications of the consumption of wine on human health and has given rise to no market targets for low-alcohol or alcohol-free alternatives.

Significance of the Study

Despite the spreading of digital techniques in grapegrowing, the present wine technology appeared to be less receptive to the upcoming digital transformation of the food and beverage industry.

背景和目的本研究的目的是从Scopus数据库中检索到的同行评议的英文文章,分析酿酒学和葡萄栽培领域的科学发展趋势。方法与结果2020年两个领域的科学研究较为活跃,年发表论文2000-2500篇。由于其悠久的葡萄酒生产传统,意大利,西班牙和法国是主要的出版国家,即使其他国家,如美国,中国和澳大利亚,开始对葡萄酒生产感兴趣。在酿酒领域,在法国和西班牙高度专业化机构工作的研究人员发表的文章数量最多。在1950-2020年期间,《农业与食品化学杂志》是被引用最多的期刊。在过去的5年中,其他期刊,如食品化学,分子和Oeno One,获得了声誉;此外,从文献图谱分析来看,花青素和多酚的抗氧化活性是研究最多的主题,其次是葡萄和酵母的遗传,以及确定挥发性,营养和抗扰化合物的分析方法。与啤酒行业相反,目前的葡萄酒研究可能理所当然地认为葡萄酒消费对人体健康的负面影响,并没有提出低酒精或无酒精替代品的市场目标。尽管数字技术在葡萄种植中得到了广泛应用,但目前的葡萄酒技术似乎不太能接受即将到来的食品和饮料行业的数字化转型。
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引用次数: 2
期刊
Australian Journal of Grape and Wine Research
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