Impact of Fruit Zone Sunlight Exposure on Ripening Profiles of Cold Climate Interspecific Hybrid Winegrapes

Riesterer-Loper, Jean; Workmaster, Beth Ann; Atucha, Amaya

doi:10.5344/ajev.2019.18080

Cited by 21 publications

(22 citation statements)

References 26 publications

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“…Only in two species, Vitis champinii and Vitis doaniana, was the glucose content higher than the fructose [7]. In a recent study, the ratio was lower in Brianna grapes that have Vitis labrusca in their heritage than in Frontenac grapes (0.88 and 1.10, respectively) [17]. It has been well established that the increase in sugar content during berry ripening is associated with the development of aromatic compounds, as well as with a decrease in acidity.…”

Section: Grape Speciesmentioning

confidence: 99%

Chemistry and Reactivity of Tannins in Vitis spp.: A Review

Watrelot

Norton

2020

Molecules

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Tannins are a group of polyphenols found in fruits, leaves, trees, etc., well known in the leather industry and in apples, persimmons and grapes, because of their capacity to interact with other polyphenols or other components either from the food product or from saliva. Prior to being able to interact with other compounds, tannins have to be extracted from the food matrix, which depends on their chemistry, as well as the chemical structure of other components, such as cell wall material and proteins. Vitis vinifera grapes are commonly grown around the world and are used in winemaking, providing good quality wines with different levels of tannins responsible for the final wine’s astringency. Many studies have focused on tannins extractability and retention with cell wall material, and the reactivity of tannins with proteins in Vitis vinifera grapes and wine, but there are very few reports for other Vitis species. However, depending on the environmental characteristics of certain regions, Vitis hybrid grapes are grown and used to produce wines more and more. This review focuses on the comparison of the chemistry of tannins, and their reactivity with other macromolecules in Vitis species.

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Section: Grape Speciesmentioning

confidence: 99%

Chemistry and Reactivity of Tannins in Vitis spp.: A Review

Watrelot

Norton

2020

Molecules

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“…Berries of cold-climate grape hybrids generally contain higher levels of organic acids at harvest than do cultivars of european common grape Riesterer-Loper et al, 2019). In our trial, average TA of berries at harvest was within or below the target standards recommended by Dharmadhikari and Wilker (2001) for all cultivars except Frontenac, MN 1189, MN 1258, and La Crescent; however, averages for two of these cultivars (La Crescent and MN 1258) were not far from the standard (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…Grape quality is directly related to the composition of the berries when harvested (Bagajewicz et al, 2006). Although specific standards of chemical composition for gauging maturity and quality of cold-climate hybrids have not yet been defined (Riesterer-Loper et al, 2019), general standards of SSC, pH, TA, and SSC:TA ratio (sugar:acid ratio) remain useful for comparing fruit quality of cultivars and for assessing their potential for winemaking (Ahmedullah and Himelrick, 1990;Amerine et al, 1980;Morris et al, 1984). In our trial, general standards of chemical composition for judging maturity and quality of harvested grapes were 21% to 22% SSC, 3.2 to 3.4 pH, and 7 to 9 gÁL -1 TA for white grapes and 22% to 24% SSC, 3.3 to 3.5 pH, 6 to 8 gÁL -1 TA for red grapes (Dharmadhikari and Wilker, 2001).…”

Section: Resultsmentioning

confidence: 99%

“…Vine spacing can also have a large impact on grape yield and composition (Dami et al, 2005;Reynolds et al, 2004), a factor that is especially important when comparing results from our trial with results from others. Research also indicates that yield and composition of cold-climate grapes can be improved by vine management practices, such as cluster thinning or leaf pulling (Dami et al, 2006;Riesterer-Loper et al, 2019), practices that were not performed during our trial. Therefore, the potential shown by the cultivars in our trial represents results that could likely be improved upon by implementing specific training systems, vine spacing arrangements, and management practices that can optimize the yield and berry composition of each cultivar in Iowa's climate.…”

Section: Redmentioning

confidence: 94%

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Yield and Berry Composition of Cold-climate Grape Cultivars and Advanced Selections in Iowa Climate

Schrader

Cochran

Domoto

et al. 2020

hortte

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Increasing interest in grape (Vitis sp.) and wine production in the upper midwest region of the United States has created a need for science-based information that characterizes the potential of cold-climate cultivars to produce quality grapes with acceptable yields. We evaluated the yield and quality (composition) of grapes from 12 cold-climate, interspecific-hybrid grape cultivars (northern hybrids) grown in a randomized and replicated field plot in central Iowa. The grape trial was planted in 2008, and crop performance of cultivars was evaluated from 2012 through 2017 (yield) and 2014 through 2017 (berry composition). The trial included two established cultivars, five newer cultivars, and five advanced selections. The established cultivars included in the study as controls were Frontenac and St. Croix. The newer cultivars evaluated in this study were Arandell, Corot Noir, La Crescent, Marquette, and Petit Ami, and the advanced selections were MN 1189, MN 1200, MN 1220, MN 1235, and MN 1258. Yield and productivity were characterized by measuring yield per vine, number of clusters per vine, average cluster weight, and pruning weight. The fruit composition indices were soluble solids concentration (SSC), pH, titratable acidity (TA), and sugar:acid ratio (SSC ÷ TA). On the basis of their strong results for both yield and fruit composition measures, ‘Marquette’, MN 1235, and MN 1220 ranked as the top-performing cultivars in Iowa’s climate, followed by Petit Ami and St. Croix. ‘Petit Ami’ had slightly lower yield consistency and slightly lower results for SSC than did the top performing cultivars, and St. Croix had among the highest and most consistent yields of the trial but showed lower results for SSC and sugar:acid ratio than many of the other cultivars. ‘La Crescent’ had midrange yields and high SSC, but the high TA of ‘La Crescent’ fruit resulted in a low sugar:acid ratio at harvest. Two cultivars (MN 1258 and MN 1200) had relatively low yields in Iowa’s climate but achieved good results for composition indices. ‘Frontenac’ had high, consistent yields and achieved high SSC, but the very high TA of ‘Frontenac’ fruit resulted in a very low sugar:acid ratio compared with most other cultivars. The remaining three cultivars (Corot Noir, MN 1189, and Arandell) performed poorly in Iowa’s climate, showing both low yield and undesirable fruit composition indices compared with the other cultivars in the trial. An itemized summary of the relative ratings for yield and fruit composition is provided to aid growers in selection and management of grape cultivars for use in Iowa and other areas of similar climate.

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“…Травянистый аромат, присущий Vitis riparia, проявляется редко. В основном, из сорта получают rosé и вина типа портвейн, часто используют в купажах с низкокислотными сортами винограда [2][3][4][5][6] За годы сортоизучения критических зимних температур не было, абсолютный минимум составил минус 18,9 о С. Поэтому в настоящий момент пока нет возможности оценить морозостойкость сорта в наших условиях.…”

Section: Discussionunclassified

The Science Testing of Frost-Resistant Grape Variety Frontenac in the Conditions of the Rostov Region

Krasokhina¹,

Matveeva²

2019

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Всероссийский научно-исследовательский институт виноградарства и виноделия имени Я.И. Потапенко-филиал Федерального государственного бюджетного научного учреждения «Федеральный Ростовский аграрный научный центр»,

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Impact of Fruit Zone Sunlight Exposure on Ripening Profiles of Cold Climate Interspecific Hybrid Winegrapes

Cited by 21 publications

References 26 publications

Chemistry and Reactivity of Tannins in Vitis spp.: A Review

Chemistry and Reactivity of Tannins in Vitis spp.: A Review

Yield and Berry Composition of Cold-climate Grape Cultivars and Advanced Selections in Iowa Climate

The Science Testing of Frost-Resistant Grape Variety Frontenac in the Conditions of the Rostov Region

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