scholarly journals Effects of leaf removal on aromatic precursor dynamics during maturation of Ribolla Gialla grapes (Vitis vinifera L.)

2019 ◽  
Vol 13 ◽  
pp. 03008
Author(s):  
Sabrina Voce ◽  
Giulia Pizzamiglio ◽  
Davide Mosetti ◽  
Giovanni Bigot ◽  
Andrea Lonardi ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Aroma Compounds ◽  
Vitis Vinifera L ◽  
Leaf Removal ◽  
Berry Quality ◽  
Selection Of

Leaf removal is a viticultural practice applied in order to improve fruit-zone microclimate and berry quality. The aim of this trial was to evaluate the effect of post-flowering leaf removal on maturation and biosynthesis of terpenes and and C13-norisoprenoids in Ribolla Gialla grapes. In the seasons 2015 and 2016, basic maturation parameters were nearly unaffected by leaf removal. Contrarily, in the second season, 2016, one week before harvest, the concentration of several aroma compounds was significantly improved by leaf removal. In conclusion, the trial here showed that leaf removal improves the concentration of aroma compounds in the grapes, but the selection of the date of harvest is more crucial in order to maintain them during vinification.

Influence of leaf removal on grape, wine and aroma compounds of Vitis vinifera L. cv. Merlot under Mediterranean climate

2021 ◽  
Author(s):  
Fabrizio Cincotta ◽  
Antonella Verzera ◽  
Ottavia Prestia ◽  
Gianluca Tripodi ◽  
Wafaê Lechhab ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Mediterranean Climate ◽  
Aroma Compounds ◽  
Vitis Vinifera L ◽  
Leaf Removal ◽  
Grape Wine

scholarly journals Assessing Impacts of Climate Change on Phenology and Quality Traits of Vitis vinifera L.: The Contribution of Local Knowledge

Plants ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 121 ◽  
Author(s):  
Rita Biasi ◽  
Elena Brunori ◽  
Carlotta Ferrara ◽  
Luca Salvati
Keyword(s):  
Climate Change ◽  
Vitis Vinifera ◽  
Central Italy ◽  
Climate Variation ◽  
Vitis Vinifera L ◽  
Time Interval ◽  
Agronomic Practices ◽  
Berry Quality ◽  
Long Time ◽  
Related Genotype

Developing adaptation strategies in Vitis vinifera, a crop sensitive to climate change, is crucial for resilience of traditional viticultural systems, especially in climate-vulnerable areas like the Mediterranean basin. A progressive warming is demonstrated to alter the geographical distribution of grapevine, reducing land capability for typical grapes and vine productions in most Southern European districts traditionally specialized in tree crops. Grapevine growth and reproduction under climate change require a continuous monitoring to adapt agronomic practices and strategies to global change. The present study illustrates an empirical approach grounded on a set of bio-physical indicators assessing the genotype-related response to climate variation. This approach was tested in Umbria, central Italy, to verify the response of some major international and local grapevine varieties to climate variation during a relatively long time interval (1995–2015). Long-term data for ripening time and berry quality collected in the study area were correlated to representative bioclimatic indices including Winkler, Huglin, and Cool night indicators. Results of this study highlighted the increase of air temperature (reflecting the inherent growth in thermal availability for maturation) and the alteration of precipitation patterns toward more intense precipitation. Climate variability exerted distinctive impacts on grapevine phenology depending on the related genotype. Empirical findings underline the usefulness of a permanent field monitoring of the relationship between selected climate variables and grape ripening with the aim to develop adaptive viticultural practices at farm’s scale.

scholarly journals Effects of Natural Hail on the Growth, Physiological Characteristics, Yield, and Quality of Vitis vinifera L. cv. Thompson Seedless under Mediterranean Growing Conditions

Agronomy ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 197 ◽  
Author(s):  
Despoina G. Petoumenou ◽  
Katerina Biniari ◽  
Efstratios Xyrafis ◽  
Dimitrios Mavronasios ◽  
Ioannis Daskalakis ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Leaf Area ◽  
Leaf Gas Exchange ◽  
Natural Phenomenon ◽  
Vitis Vinifera L ◽  
Thompson Seedless ◽  
Berry Quality ◽  
Soluble Solid ◽  
Growing Conditions ◽  
Grape Varieties

Hailstorms are typically localized events, and very little is known about their effect on crops. The objective of this study was to examine the physiological and vine performance responses to natural hail, registered four weeks after full bloom, of field-grown Thompson seedless (Vitis vinifera L.) grapevines, one of the most important table grape varieties cultivated in Greece and especially in the Corinthian region in northeastern Peloponnese. Leaf gas exchange, vegetative growth, vine balance indices, cane wood reserves, yield components, and fruit chemical composition were recorded from hail-damaged vines and compared with control vines. Visibly, the extent of the hailstorm damage was great enough to injure or remove leaves as well as cause partial stem bruising and partial injury or total cracking of berries. Our results indicated that natural hail did not affect leaf photosynthesis, berry weight, total acidity, and cane wood reserves but significantly reduced the total leaf area, yield, and the total phenolics of berries at harvest. At the same time, hail-damaged vines increased the leaf area of lateral canes and presented a higher total soluble solid (TSS) accumulation, while no effect on the next year’s fertility was registered. The present work is the first attempt to enhance our understanding of the vegetative yield, berry quality, and physiological responses of grapevines to natural hail, which is an extreme and complex natural phenomenon that is likely to increase due to climate change.

Early Leaf Removal as a Strategy to Improve Ripening and Lower Cluster Rot in Cool Climate (Vitis vinifera L.) Pinot Grigio

2019 ◽  
Vol 71 (1) ◽  
pp. 70-79 ◽  
Author(s):  
Joshua VanderWeide ◽  
Tommaso Frioni ◽  
Zhongli Ma ◽  
Manfred Stoll ◽  
Stefano Poni ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Vitis Vinifera L ◽  
Leaf Removal ◽  
Cool Climate

Early versus late leaf removal strategies for Pinot Noir (Vitis vinifera L.): effect on colour-related phenolics in young wines following alcoholic fermentation

2013 ◽  
Vol 93 (15) ◽  
pp. 3670-3681 ◽  
Author(s):  
Melita Sternad Lemut ◽  
Kajetan Trost ◽  
Paolo Sivilotti ◽  
Panagiotis Arapitsas ◽  
Urska Vrhovsek
Keyword(s):  
Vitis Vinifera ◽  
Alcoholic Fermentation ◽  
Pinot Noir ◽  
Vitis Vinifera L ◽  
Leaf Removal

Seasonal and Regional Variation of Green Aroma Compounds in Commercial Vineyards of Vitis vinifera L. Merlot in California

2013 ◽  
Vol 64 (4) ◽  
pp. 430-436 ◽  
Author(s):  
M. P. Mendez-Costabel ◽  
K. L. Wilkinson ◽  
S. E. P. Bastian ◽  
M. McCarthy ◽  
C. M. Ford ◽  
...  
Keyword(s):  
Vitis Vinifera ◽  
Regional Variation ◽  
Aroma Compounds ◽  
Vitis Vinifera L
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