Assessment of the influence of foliar treatment on productivity and phenolic maturity of grapes

Levchenko, Svetlana; Cherviak, Sofia; Boyko, Vladimir; Belash, Dmitriy; Ostroukhova, Elena; Lutkova, Natalia

doi:10.1051/e3sconf/202123203026

Cited by 3 publications

(2 citation statements)

References 6 publications

(7 reference statements)

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“…As a result of global warming, there is a discrepancy in the accumulation of mass concentrations of sugars and anthocyanins in red grape varieties, which leads to delayed harvesting in order to achieve phenolic maturity of grapes [16,17]. This factor is responsible for higher concentrations of sugars in grapes of red varieties compared to white ones.…”

Section: Resultsmentioning

confidence: 99%

Quality assessment of grapes and wines of the Alminskiy terroir (Crimean Western-Coastal Piedmont viticultural and winemaking region)

Cherviak,

Anikina,

Rybalko

et al. 2023

E3S Web of Conf.

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Climatic conditions significantly impact the technology of grape cultivation, starting with selecting of varieties, choosing a place to establish a vineyard, and finishing with determining the harvesting time. The study of the effect of abiotic environmental factors on the quality characteristics of grapes and their products of processing is a hot topic. Assessment of the Crimean western-coastal piedmont viticulture and winemaking region was carried out in accordance with the climatic factors. Their impact on the carbohydrate-acid complex of grape varieties ‘Aligote’, ‘Rkatsiteli’, ‘Cabernet-Sauvignon’ and ‘Merlot’, as well as wines from these varieties, was studied. The sum of active temperatures in the region varied in the range of 3100°C - 3650°C. The hydrothermal coefficient was 0.35-0.76, which characterized the region as arid. Grapes cultivated in this region reach technical ripeness, mass concentration of sugars ranges from 186 to 260 g/L. An inverse correlation between the mass concentration of titratable acids in grapes and precipitation amount during the growing season (r= -0.63) was established. The wines prepared were characterized by distinctive varietal characteristics.

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Section: Resultsmentioning

confidence: 99%

Quality assessment of grapes and wines of the Alminskiy terroir (Crimean Western-Coastal Piedmont viticultural and winemaking region)

Cherviak,

Anikina,

Rybalko

et al. 2023

E3S Web of Conf.

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“…Experimental samples of grapes were characterized by a higher content of titratable acids and lower sugar accumulation. Experimental processing scheme showed a positive effect on organoleptic properties of wines [10][11][12].…”

Section: Introductionmentioning

confidence: 98%

Foliar Fertilizers as A Method Of Phenolic Ripeness Control

Boiko,

Levchenko,

Cherviak

et al. 2023

E3S Web of Conf.

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Due to global warming, there is a problem to correlate technical and phenolic ripeness in modern viticulture. This study is focused on the use of foliar fertilizers in order to combine the time of beginning of phenolic and technical ripeness. The studies were carried out in 2022 in the conditions of mountain-valley coastal viticulture zone of the Republic of Crimea. Foliar top dressing was carried out with the preparation ‘Agrogemo’ (LLC Pontis, Russian Federation) on wine grape varieties ‘Bastardo Magarachskiy’ and ‘Malbec’. The Glories method was used to estimate the ripeness degree of grapes. The principle of it is to determine the total and extractable anthocyanin potential of grapes. Using of foliar fertilizers made it possible to increase the yield of ‘Bastardo Magarachskiy’ variety by 15.3%, and ‘Malbec’ variety by 18.1%. It was found that the experimental treatment scheme contributed to the later beginning of technical ripeness of grapes, i.e. a low percentage of non-extractable anthocyanins from grape skin compared to the control. Base wines obtained from grapes with the use of organic-mineral fertilizer were characterized by the intense color, balanced aroma and flavor.

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The influence of foliar treatment on the quality of table grape during storage

et al. 2021

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One of the main factors increasing the productivity of vineyards and the quality of fresh grapes during storage is the use of vegetative treatments with bioregulators of various physiological effects. This work is devoted to the study and comparative assessment of various foliar treatments with the growth regulator "Albit", "Glycerol" and a complex of fertilizers LLC "Biochefarm Rus" on agro biological and commercial quality characteristics of the table grape variety ‘Moldova’ during the longterm storage. Foliar treatments were carried out in the main phases of the growing season: 'before flowering', 'after flowering', 'the beginning of growth', 'the beginning of ripening'. Sampling for analyzes was carried out for 30, 90 and 150 days of storage. It was found that foliar treatment leading to a significant increase in cropping capacity of grapes by 26.8% ("Biochefarm"), 36.5% ("Albit") and 20.0% ("Glycerol"). The increase in the average weight of the bunch in the experimental variants grew by 29.6-31.3%. The use of experimental schemes of foliar treatments made it possible to increase the keeping quality of table grapes: the weight loss of bunch decreased by 0.3-3.5%. The tasting assessment of the experimental batches of grapes at the end of storage exceeded the control by 5.6-6.9%.

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Assessment of the influence of foliar treatment on productivity and phenolic maturity of grapes

Cited by 3 publications

References 6 publications

Quality assessment of grapes and wines of the Alminskiy terroir (Crimean Western-Coastal Piedmont viticultural and winemaking region)

Quality assessment of grapes and wines of the Alminskiy terroir (Crimean Western-Coastal Piedmont viticultural and winemaking region)

Foliar Fertilizers as A Method Of Phenolic Ripeness Control

The influence of foliar treatment on the quality of table grape during storage

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