Effects of grapevine leafroll associated virus 3 infection on growth, leaf gas exchange, yield and basic fruit chemistry of Vitis vinifera L. cv. Cabernet Franc

2014 ◽  
Vol 170 ◽  
pp. 228-236 ◽  
Author(s):  
Solomon T. Endeshaw ◽  
Paolo Sabbatini ◽  
Gianfranco Romanazzi ◽  
Annemiek C. Schilder ◽  
Davide Neri
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Leaf Gas Exchange ◽  
Vitis Vinifera L ◽  
Cabernet Franc ◽  
Fruit Chemistry

The Effect of Downy and Powdery Mildew on Grapevine (Vitis vinifera L.) Leaf Gas Exchange

2005 ◽  
Vol 153 (6) ◽  
pp. 350-357 ◽  
Author(s):  
M. Moriondo ◽  
S. Orlandini ◽  
A. Giuntoli ◽  
M. Bindi
Keyword(s):  
Gas Exchange ◽  
Powdery Mildew ◽  
Vitis Vinifera ◽  
Leaf Gas Exchange ◽  
Vitis Vinifera L

The influence of water stress on grapevine (Vitis vinifera L.) shoots in a cool, humid climate: growth, gas exchange and hydraulics

2016 ◽  
Vol 43 (9) ◽  
pp. 827 ◽  
Author(s):  
Vinay Pagay ◽  
Vivian Zufferey ◽  
Alan N. Lakso
Keyword(s):  
Soil Moisture ◽  
Water Stress ◽  
Gas Exchange ◽  
Vitis Vinifera ◽  
Leaf Gas Exchange ◽  
Water Status ◽  
Large Diameter ◽  
Vitis Vinifera L ◽  
Long Shoots ◽  
Short Shoots

Recent climatic trends of higher average temperatures and erratic precipitation patterns are resulting in decreased soil moisture availability and, consequently, periods of water stress. We studied the effects of seasonal water stress on grapevine (Vitis vinifera L. cv. Riesling grafted onto 101–14 (Vitis riparia Michx.×Vitis rupestris Scheele) rootstock) shoot growth, leaf gas exchange, xylem morphology and hydraulic performance in the cool-climate Finger Lakes region of New York. A plastic rain exclusion tarp was installed on the vineyard floor to create a soil moisture deficit and consequently induce vine water stress. Weekly measurements of predawn leaf and midday stem water potentials (Ψmd) were made, and two contrasting shoot length classes, long (length >2.0m) and short (length <1.0m), were monitored. Growth of both long and short shoots was positively correlated with Ψmd but no difference in water status was found between the two. Compared with rain-fed vines, water-stressed vines had lower photosynthesis and stomatal conductance later in the season when Ψmd dropped below –1.2MPa. Long shoots had three-fold higher xylem-specific hydraulic conductivity values than short shoots. Long shoots experiencing water stress were less vulnerable to xylem cavitation than shorter shoots even though they had more large-diameter vessels. The lower vulnerability to cavitation of long shoots may be attributed to less xylem intervessel pitting being found in long shoots, consistent with the air-seeding hypothesis, and suggests that a hydraulic advantage enables them to maintain superior growth and productivity under water stress.

Phenolic composition and physicochemical parameters of Carménère, Cabernet Sauvignon, Merlot and Cabernet Franc grape seeds (Vitis vinifera L.) during ripening

LWT ◽  
2012 ◽  
Vol 48 (1) ◽  
pp. 134-141 ◽  
Author(s):  
Elías Obreque-Slier ◽  
Remigio López-Solís ◽  
Lorena Castro-Ulloa ◽  
Cristian Romero-Díaz ◽  
Álvaro Peña-Neira
Keyword(s):  
Vitis Vinifera ◽  
Physicochemical Parameters ◽  
Vitis Vinifera L ◽  
Cabernet Sauvignon ◽  
Phenolic Composition ◽  
Grape Seeds ◽  
Cabernet Franc

scholarly journals Recovery of Vitis vinifera L. cv. ‘Kékfrankos’ from ‘bois noir’ disease

2019 ◽  
Vol 156 (3) ◽  
pp. 987-991
Author(s):  
Anikó Mátai ◽  
Péter Teszlák ◽  
Gábor Jakab
Keyword(s):  
Gas Exchange ◽  
Vitis Vinifera ◽  
Photosynthetic Performance ◽  
Photochemical Quenching ◽  
Vitis Vinifera L ◽  
Bois Noir ◽  
Flavescence Dorée ◽  
Exchange Performance ◽  
Concentration Changes ◽  
Non Photochemical Quenching

AbstractInvestigation of diseases caused by phytoplasmas, a group of cell-wall-less gram-positive bacteria has received significant attention in plant pathology. Grapevine is a host of two, genetically distinct phytoplasmas: Line Flavescence dorée (FD) phytoplasma associated to ‘flavescence dorée’ and ‘Candidatus Phytoplasma solani’ responsible for ‘bois noir’ (BN) disease. In the current study, we focused on BN diseased grapevines (Vitis vinifera L. cv. ‘Kékfrankos’), measured their photosynthetic performance and leaf hydrogen peroxide (H2O2) concentration. The latter is generally considered as a key molecule in the process of ‘recovery’ which is a spontaneous and unpredictable long-term remission of disease symptoms. This phenomenon also occurred during the time of our experiment. Infection resulted in reduced gas exchange performance and maximum quantum efficiency of PSII with an increased regulated non-photochemical quenching of PSII and H2O2 concentration. Changes in gas exchange seem to be a systemic response, while reduced photochemistry is a local response to ‘Ca. P. solani’ infection. H2O2 accumulation in BN phytoplasma infected plants, unlike in FD disease, was found to be a typical response to the appearance of a biotic stressor.

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.

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