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1

Johnson, Donn T., Barb A. Lewis, and J. David Whitehead. "Grape Scale (Homoptera: Diaspididae) Biology and Management on Grapes." Journal of Entomological Science 34, no. 2 (April 1, 1999): 161–70. http://dx.doi.org/10.18474/0749-8004-34.2.161.

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Grape scale, Diaspidiotus uvae (Comstock), is a pest of grapes, Vitus spp., in the south-central United States. This study compared Julian days and cumulative degree-days (DD at base 10°C accumulated after 1 April) to grape scale biology and control in Arkansas. On the average, first generation crawlers began emerging 14 May (274 DD) and peaked on 20 May (356 DD). First generation winged males began emerging on 26 June (794 DD) and peaked 13 July (1,108 DD). Second generation crawlers began emerging on 20 July (1,166 DD) and peaked on 12 August (1,549 DD). Second generation wingless males bega
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2

McEachern, George Ray. "Four Grape Canopy Systems in Texas." HortScience 33, no. 4 (July 1998): 600e—600. http://dx.doi.org/10.21273/hortsci.33.4.600e.

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I. Chennin Blanc 107-cm bilateral cordon spaced 3.6 × 2.4 m, 1119 vines/ha, 14 spurs with 32 buds/vine. Yields were 8.8 t·ha-1 in the third leaf; 9.7 in the fourth, and 12.8 the 5th year, 1990, at the Jane Terrell Vineyard, Navasota, Tex. II. Cabernet Sauvignon with a two-trunk 122 cm bilateral cordon spaced 3.3 × 1.2 m, 2445 vines/ha with 48 buds/vine. Yields were 9.7 t·ha-1 for 1994 through 1997 at the mechanically harvested Newson Vineyard, Plains, Tex. III. Le Noir with a 91-cm trunk and a two-cane canopy; spaced 3 × 2.1 m, 1536 vines/ha, with 14 buds/vine. Yields were 13.3 t·ha-1 in 1996
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3

Huo, Shi Wu, and Feng Qin Zhao. "Optimization Design on Covering-Soil Machine for Grape Vines." Applied Mechanics and Materials 528 (February 2014): 323–27. http://dx.doi.org/10.4028/www.scientific.net/amm.528.323.

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Aiming at the problem of the fracture and damage of key parts of covering-soil machine for grape vines, on the basis of structure design and test study of the existing small covering-soil machine for grape vines,its key components were analyzed and optimized by using computer-aided software ANSYS,and the problems of structure design existing covering-soil machine for grape vines were found,in the end, the structure of the machine with high-performance was attained through optimizing. This study can provide theoretical basis for this kinds of machine production.
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4

Tarricone, L., G. Masi, S. Roccotelli, A. R. Caputo, and P. Crupi. "Vine performance of ‘Italia' table grape in relation to organic soil amendment." BIO Web of Conferences 15 (2019): 01034. http://dx.doi.org/10.1051/bioconf/20191501034.

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The following research took place during the 2018 − ‘19 season in ‘Italia' table grape vineyard in Apulia. Four treatments were compared: no fertilized (T), organic amendment fertilized (B) at rate of 5.0 ton/hectare, equivalent at the rate of 100 Kg N ha−1, 75 Kg P2O5 ha−1 and 75 Kg K202 ha−1; mineral fertilized (M) at the same rate of N, P2O5 and K2O of organic fertilized vines and finally a cover crops treatment with a mixture of vetch, pea and lentil (S). Leaf gas exchange during summer season shown significant differences in term of net CO2 assimilation, stomatal conductance, transpiratio
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5

Hedberg, PR, R. McLeod, B. Cullis, and BM Freeman. "Effect of rootstock on the production, grape and wine quality of Shiraz vines in the Murrumbidgee Irrigation Area." Australian Journal of Experimental Agriculture 26, no. 4 (1986): 511. http://dx.doi.org/10.1071/ea9860511.

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The grape production and grape and wine quality of Shiraz vines, grown either on their own roots or on 6 rootstocks that have varying resistance to nematodes, were compared. Vines on the rootstocks Ramsey and Dog Ridge outyielded ungrafted vines by 46 and 48%, respectively, principally because of increased vegetative growth and hence retention of more nodes at pruning. Ramsey rootstock gave a greater grape yield per shoot. The ability of Dog Ridge stocks to produce yields as high as those of Ramsey highlights the importance of adequate pruning levels to enable the full potential of rootstocks
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6

Granett, Jeffrey, Laszlo Kocsis, Laszlo Horvath, and Eva Baracsi Horvathne. "Grape Phylloxera Gallicole and Radicicole Activity on Grape Rootstock Vines." HortScience 40, no. 1 (February 2005): 150–53. http://dx.doi.org/10.21273/hortsci.40.1.150.

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The objective was to explore temporal distribution of grape phylloxera, Daktulosphaira vitifoliae (Fitch), gallicoles on grapevine rootstocks (Vitis sp.) and determine how this distribution arose. We tested the hypothesis that leaf galls are created by individuals arising from the soil in the spring. Galls begin to appear at budbreak and gall averages per leaf increase variably as the season progresses. Initial galling appears to be associated with dry conditions and gall populations decline with rain. Emergence-trap catches show that phylloxera maintain populations on rootstock roots and that
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7

Badr, Sayed A. "YIELD AND QUALITY OF THE RED GLOBE GRAPE VARIETY AS INFLUENCED BY GRAFTING ON DIFFERENT ROOTSTOCKS." HortScience 27, no. 6 (June 1992): 689e—689. http://dx.doi.org/10.21273/hortsci.27.6.689e.

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Grafted and non-grafted vines of the Red Globe cultivar were planted in May, 1985 in a randomized block design to determine the effects of grafting on different rootstock on vine growth, yield, and fruit quality. The rootstocks used in this trial were Harmony, Freedom, Couderc 1613, and Thompson Seedless; non-grafted vines included rooted cuttings and one-year-old rootings. Vines grafted on Freedom were more vigorous than any other vines. The levels of nitrogen and potassium were significantly higher in vines grafted on Freedom than non-grafted vines or those grafted on other rootstocks. Yield
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8

Lombard, Kevin, Bernd Maier, Franklin J. Thomas, Mick O’Neill, Samuel Allen, and Rob Heyduck. "Wine Grape Cultivar Performance in the Four Corners Region of New Mexico in 2010–12." HortTechnology 23, no. 5 (October 2013): 699–709. http://dx.doi.org/10.21273/horttech.23.5.699.

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Commercial wine grape (Vitis sp.) production in northwestern New Mexico and the greater Four Corners region is now supported by four wineries. The challenges of growing grape vines in northwestern New Mexico include cold winter temperatures and killing spring frosts exacerbated by a semiarid climate and elevations exceeding 1700 m. Nineteen nongrafted European wine grape (Vitis vinifera) and interspecific hybrid wine grape cultivars were planted in 2007 and evaluated between 2010 and 2012. Among European wine grape cultivars, Agria, Malbec, Sangiovese, Viognier, Müller-Thurgau, and Sauvignon B
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9

Heuvel*, Justine E. Vanden, Jessica L. Robidoux, and Catherine C. Neto. "Leaf Carbohydrate Concentration Affects Development of Phenolic Compounds in Grape Berries." HortScience 39, no. 4 (July 2004): 761B—761. http://dx.doi.org/10.21273/hortsci.39.4.761b.

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Carbon supply reduction was used to investigate the relationship between total non-structural carbohydrate (TNSC) concentration in the vegetative tissue and the production of phenolic compounds in the fruit of grapevines. Potted, greenhouse-grown DeChaunac vines were partially defoliated on one of three dates (berry set, veraison, or 7 days pre-harvest) during the growing season. Light environment of the fruit clusters was not affected by defoliation. Seven days following defoliation, half of the vines were destructively harvested for carbohydrate analysis, while the remaining vines were kept
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10

Ferree, D., T. Steiner, J. Gallander, D. Scurlock, G. Johns, and R. Riesen. "Performance of 'Seyval Blanc' Grape in Four Training Systems Over Five Years." HortScience 37, no. 7 (December 2002): 1023–27. http://dx.doi.org/10.21273/hortsci.37.7.1023.

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Own-rooted 'Seyval Blanc' vines were evaluated over 5 years in the following training systems: bilateral cordon, bilateral cordon sylvos (sylvos), upright cordon-spur pruned, and upright cordon-cane pruned. Vines in all systems were spaced 1.8 x 2.7 m and were shoot thinned to 40 shoots and cluster thinned to one cluster per shoot. Cumulative yields over 5 years of the upright cordon systems were higher than vines in the sylvos system. Average weight of cane prunings was higher in the upright cordon vines than in all other systems. Vines trained to the sylvos system had more canopy gaps, less
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11

Botterill, Tom, Scott Paulin, Richard Green, Samuel Williams, Jessica Lin, Valerie Saxton, Steven Mills, XiaoQi Chen, and Sam Corbett-Davies. "A Robot System for Pruning Grape Vines." Journal of Field Robotics 34, no. 6 (October 3, 2016): 1100–1122. http://dx.doi.org/10.1002/rob.21680.

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12

English-Loeb, Greg, Andrew P. Norton, David Gadoury, Robert Seem, and Wayne Wilcox. "Biological Control of Grape Powdery Mildew Using Mycophagous Mites." Plant Disease 91, no. 4 (April 2007): 421–29. http://dx.doi.org/10.1094/pdis-91-4-0421.

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We evaluated the efficacy of a mycophagous tydeid mite, Orthotydeus lambi, in controlling grape powdery mildew on mature vines of nine different grape cultivars and one unnamed hybrid grown in an experimental vineyard over a 3-year period. O. lambi became well established on all vines where they were released. However, some cultivars supported higher densities than others, depending on, among other factors, the presence and abundance of leaf trichomes in vein axils (domatia). The establishment of O. lambi substantially reduced powdery mildew on foliage and fruit, although the magnitude of dise
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13

Son, In-Chang, Jae-Hyuk Park, and Seon-Kyu Kim*. "Effect of Shading and Water Stress on Growth of `Campbell Early' Grape (Vitis hybrid)." HortScience 39, no. 4 (July 2004): 849B—849. http://dx.doi.org/10.21273/hortsci.39.4.849b.

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Three-year-old `Campbell Early' grapevines were subjected to 4 levels of shading (0, 30, 60, and 90%) combined with 3 levels of soil moisture content (12, 34.6, and 100 kPa), and their growth responses were examined. Increase in shoot length of vines grown without soil water stress (12 kPa and 34.6 kPa) and light stress (non-shading and 30% shading) was higher than those grown under 100 kPa and heavy shading. Leaf number showed a gradual increase in proportion to decreasing shading and increasing light level, showing some overgrowth with 30% shading. Leaf area increment of vines with sufficien
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14

Gadoury, David M., Robert C. Seem, Roger C. Pearson, Wayne F. Wilcox, and Richard M. Dunst. "Effects of Powdery Mildew on Vine Growth, Yield, and Quality of Concord Grapes." Plant Disease 85, no. 2 (February 2001): 137–40. http://dx.doi.org/10.1094/pdis.2001.85.2.137.

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Vitis labruscana ‘Concord’ is a widely planted grape cultivar grown in the United States for processing into juice and other products. Concord fruit are sporadically but sometimes severely damaged by the grape powdery mildew pathogen, Uncinula necator. The effects of powdery mildew on vine growth, yield, and quality of Concord grapes at three levels of cropping intensity commonly found in commercial grape production were determined in vineyard studies. Top-wire cordon-trained Concord vines were balance pruned, pruned to retain 80 nodes, or minimally pruned. Replicated plots of the foregoing we
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15

Provost, Caroline, Alexander Campbell, and François Dumont. "Rootstocks Impact Yield, Fruit Composition, Nutrient Deficiencies, and Winter Survival of Hybrid Cultivars in Eastern Canada." Horticulturae 7, no. 8 (August 10, 2021): 237. http://dx.doi.org/10.3390/horticulturae7080237.

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Grafting cold-hardy hybrid grapevines may influence their attributes under different pedoclimatic conditions and may also contribute to cold-hardiness, influence plant physiology, and affect yield and fruit composition. In a six-year study, we evaluated bud survival, plant development, nutrient deficiencies, yield, and fruit composition for three cold-hardy grape varieties: Frontenac, Frontenac blanc, and Marquette. The grape varieties were grafted on four rootstocks: 3309C, SO4, Riparia Gloire, and 101-14. The final combinations were own-rooted. The six-year research period indicated that col
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16

Zombardo, Alessandra, Erica Mica, Sergio Puccioni, Rita Perria, Paolo Valentini, Giovan Battista Mattii, Luigi Cattivelli, and Paolo Storchi. "Berry Quality of Grapevine under Water Stress as Affected by Rootstock–Scion Interactions through Gene Expression Regulation." Agronomy 10, no. 5 (May 12, 2020): 680. http://dx.doi.org/10.3390/agronomy10050680.

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Despite phenotypic plasticity that allows the adaptation to harsh environments, when vines experience severe abiotic stresses, they can suffer from metabolic damages affecting grape production and quality. Grafting is an affordable strategy to mitigate these negative consequences since the rootstock can increase the drought tolerance in the scion. This work explored the effects of pre-veraison water deficit on vines grafted on different rootstocks (Mgt 101-14 and 1103 Paulsen) to obtain physiological, biochemical, and molecular information about the influence on grape quality. Repeated measure
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17

Pradubsuk, Suphasuk, and Joan R. Davenport. "Seasonal Uptake and Partitioning of Macronutrients in Mature ‘Concord’ Grape." Journal of the American Society for Horticultural Science 135, no. 5 (September 2010): 474–83. http://dx.doi.org/10.21273/jashs.135.5.474.

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Understanding how grape (Vitis L.) vines store nutrients in permanent tissues, how much nutrient vines take up from the soil, and how nutrients are partitioned and redistributed throughout the plant is critical to the development of sound nutrient management practices. This study investigated the seasonal patterns of macronutrient uptake and redistribution in whole ‘Concord’ grape (Vitis labruscana Bailey) vines. The study was conducted in a 42-year-old own-rooted ‘Concord’ vineyard. The site was a furrow-irrigated fine sandy loam. In 2006 and 2007, four vines were excavated at winter pruning,
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18

Wolfe, Dwight, and Gerald R. Brown. "TRAINING SYSTEM AFFECTS PERFORMANCE OF TABLE GRAPE CULTIVARS." HortScience 27, no. 11 (November 1992): 1178d—1178. http://dx.doi.org/10.21273/hortsci.27.11.1178d.

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Each of the grape cultivars [Vitis species, (L) Batch], `Concord', `Himrod', `Challenger', `Reliance', `Glenora', `Moored', planted June 1983, and `Mars' planted Spring, 1987, was trained to the 4-cane Kniffin (KN) and the Geneva Double Curtain (GDC) systems. Yield per vine, pruning weight, number of nodes, cluster weight, number of berries per cluster, berry weight, and percent soluble solids were recorded. Vines from `Reliance' trained to the KN system produced fruit with significantly higher percent soluble solids than did vines trained to the GDC. No significant differences in percent solu
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19

Chen, Mathilde, François Brun, Marc Raynal, and David Makowski. "Timing of Grape Downy Mildew Onset in Bordeaux Vineyards." Phytopathology® 109, no. 5 (May 2019): 787–95. http://dx.doi.org/10.1094/phyto-12-17-0412-r.

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Grapevine downy mildew (GDM) is a severe disease of grapevines. Because of the lack of reliable information about the dates of GDM symptom onset, many vine growers begin fungicide treatments early in the season. We evaluate the extent to which such preventive treatments are justified. Observational data for 266 untreated sites for the years between 2010 and 2017 were used to estimate the timing of GDM onset on vines and bunches of grapes in South West France (Bordeaux region) through survival analyses. The onset of GDM was not apparent on vines and bunches before early to mid-May, and the rate
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20

Karoglan, M., M. Osrečak, L. Maslov, and B. Kozina. "Effect of cluster and berry thinning on Merlot and Cabernet Sauvignon wines composition." Czech Journal of Food Sciences 32, No. 5 (October 1, 2014): 470–76. http://dx.doi.org/10.17221/598/2013-cjfs.

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The manipulation of grape yield is widely practised to improve grape and wine quality. Merlot and Cabernet Sauvignon vines in the Zagreb vineyard hills, north-western Croatia, were subjected to three crop removal treatments [cluster thinning (CT), berry thinning (BT), CT+BT, and untreated control] in a randomised block design experiment. CT and CT+BT treatments reduced the grape yield but increased the mean cluster weight compared to control vines. BT alone had a little effect on the yield components. Control grapes generally had the lowest soluble solids (°Oe) and highest titratable a
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21

King, P. D., D. R. Lauren, J. S. Meekings, K. C. Phillips, and M. P. Agnew. "Fosetyl-Al sprays on phylloxera damaged grape vines." Proceedings of the New Zealand Weed and Pest Control Conference 38 (January 8, 1985): 195–98. http://dx.doi.org/10.30843/nzpp.1985.38.9472.

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22

Williams, R. N., M. A. Ellis, D. S. Fickle, and M. S. Ellis. "Chemical Evaluations for Control of Grape Berry Moth on Grapes, 1994." Arthropod Management Tests 20, no. 1 (January 1, 1995): 50. http://dx.doi.org/10.1093/amt/20.1.50a.

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Abstract Treatments were evaluated for efficacy against the grape berry moth in an experimental ‘Concord’ vineyard at Wooster, Ohio. Plots consisted of 2 grape vines, with 4 replications per treatment in a randomized block design. Treatments were applied as foliar sprays at a rate of 100 gal/acre (935 liter/ha) on 13 Jul and 27 Jul. A hand-held CO2 sprayer operating at 45 psi (3.2 kg/cm2) and equipped with a 9505-E-TeeJet nozzle was used to apply treatments. No surfactant was added to any of the treatments. On 19 Sep, 20 grape clusters from each replicate were randomly examined to determine th
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23

Glenn, D. Michael, Nicola Cooley, Rob Walker, Peter Clingeleffer, and Krista Shellie. "Impact of Kaolin Particle Film and Water Deficit on Wine Grape Water Use Efficiency and Plant Water Relations." HortScience 45, no. 8 (August 2010): 1178–87. http://dx.doi.org/10.21273/hortsci.45.8.1178.

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Water use efficiency (WUE) and response of grape vines (Vitis vinifera L. cvs. ‘Cabernet Sauvignon’, ‘Merlot’, and ‘Viognier’) to a particle film treatment (PFT) under varying levels of applied water were evaluated in Victoria, Australia, and southwestern Idaho. Vines that received the least amount of water had the warmest canopy or leaf surface temperature and the lowest (more negative) leaf water potential, stomatal conductance (gS), transpiration (E), and photosynthesis (A). Vines with plus-PFT had cooler leaf and canopy temperature than non-PFT vines; however, temperature difference result
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24

Boyden, Laurie E., and Peter S. Cousins. "A Modified Method for Inducing Precocious Flowering in Grape Seedlings." HortScience 40, no. 4 (July 2005): 1147C—1147. http://dx.doi.org/10.21273/hortsci.40.4.1147c.

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Breeders of woody perennials seek to shorten the time from propagation to flowering and the turnover time between generations. Grapevines usually flower and fruit no earlier than their third season. Onset of flowering occurs when anlagen, undifferentiated primordia arising from axillary and terminal bud meristems, begin to develop into inflorescences as well as tendrils. This occurs in response to hormonal stimuli; high levels of gibberellins in juvenile tissue favor vegetative growth, whereas increased cytokinin levels in physiologically mature tissue favor reproductive growth. We modified a
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25

Buchanan, GA, and GD Godden. "Insecticide treatments for control of grape phylloxera (Daktulosphaira vitifolii) infesting grapevines in Victoria, Australia." Australian Journal of Experimental Agriculture 29, no. 2 (1989): 267. http://dx.doi.org/10.1071/ea9890267.

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Carbofuran, oxamyl, aldicarb and fenamiphos treatments were tested for control of grape phylloxera [Daktulosphaira vitifolii (Fitch)] on ungrafted Cabernet Sauvignon grapevines in central Victoria. All insecticides were applied as granular formulations to the root zone of grapevines. Oxamyl was also tested as a foliar spray. Carbofuran was the most effective treatment, although aldicarb and oxamyl reduced phylloxera populations at some sampling periods. Fenamiphos did not control phylloxera. Vegetative growth, yield and root mass of infested grapevines declined during the 3 years of the experi
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26

McColl, CR. "Cyanamide advances the maturity of table grapes in central Australia." Australian Journal of Experimental Agriculture 26, no. 4 (1986): 505. http://dx.doi.org/10.1071/ea9860505.

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In the hot subtropical desert of Central Australia, a 25 mg/ml cyanamide solution was applied to Sultana H4 and Cardinal grape vines immediately after pruning on 2 May, 30 May, 27 June or 25 July, 16, 12, 8 and 4 weeks prior to the usual time of budburst, about 22 August. Both cultivars responded to cyanamide, the vines bursting bud 2-4 weeks after application. Vines treated on 2 May and 30 May suffered frost damage and produced negligible crops; those treated on 27 June and 25 July flowered significantly earlier than untreated vines, despite slow growth in July and August. Fruit ripening in S
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27

Pulko, B., S. Vršič, and J. Valdhuber. " Influence of various rootstocks on the yield and grape composition of Sauvignon Blanc." Czech Journal of Food Sciences 30, No. 5 (July 25, 2012): 467–73. http://dx.doi.org/10.17221/347/2011-cjfs.

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This influence of various rootstocks on the yield and grape composition of Sauvignon Blanc was examined. The yield on rootstock 41B/72 was 1 kg/vine or more higher than on rootstocks SO4 cl. 31, Riparia cl. 1 and Kober 5BB. The vines grafted on the Börner rootstock gave the highest weight of 100 berries (241 g). The highest seed weight of 100 berries (6.9 g) was found on rootstock 196/17 Cl, while the lowest one was on the Riparia cl. 1 (5.6 g). There was a strong, positive correlation (r = 0.91) between the berry and seed weights of vines on rootstock 41B/72 (2003). The tota
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28

Clark, John R., Tony K. Wolf, and M. Kay Cook. "Thermal Analysis of Dormant Muscadine Grape Buds." HortScience 30, no. 4 (July 1995): 850C—850. http://dx.doi.org/10.21273/hortsci.30.4.850c.

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Thermal analysis was used to determine if muscadine grape (Vitis rotundifolia Michx.) buds supercooled and to determine the seasonal cold hardiness of several grape cultivars. Buds of the muscadine cultivars `Carlos' and `Summit', sampled from vines grown at Clarksville, Ark., produced low-temperature exotherms consistent with the number of buds tested. Apparent hardiness of the buds increased from 5 Nov. 1993 through 7 Jan. 1994. Mean low-temperature exotherms (MLTE) were lowest on 7 Jan. and were –21.5C for `Carlos' and –23.4C for `Summit'. Mars (V. labrusca L.) buds, sampled at Clarksville
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Karagiannis, S., Panos Lanaridis, and Marie-Jeanne Salaha. "Determination of benzothiazole in grapes and wines." OENO One 34, no. 2 (June 30, 2000): 69. http://dx.doi.org/10.20870/oeno-one.2000.34.2.1008.

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<p style="text-align: justify;">Benzothiazole was measured in grapes from Muscat Lefko vines from the Isle of Samos and in Muscat d'Alexandrie vines from the Isle of Lemnos. Differences were noted in regard to altitude, soil composition and exposure, and in the corresponding wines. This compound was also determined in grapes of ten other white grapevines cultivated in Greece, and in their corresponding wines. The results show the presence of benzothiazole in all of the grapes examined, and that it might have been formed during the maturation of the grape. The levels of benzothiazole vari
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Salvi, Linda, Alberto Niccolai, Eleonora Cataldo, Sofia Sbraci, Francesca Paoli, Paolo Storchi, Liliana Rodolfi, Mario R. Tredici, and Giovan Battista Mattii. "Effects of Arthrospira platensis Extract on Physiology and Berry Traits in Vitis vinifera." Plants 9, no. 12 (December 19, 2020): 1805. http://dx.doi.org/10.3390/plants9121805.

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Several advantages on physiology, productivity, and grape quality have been reported for grapevine treated with seaweed extracts, but little is known about the importance of cyanobacterial-based biostimulants in viticulture. The purpose of this pioneering work was to analyze the broad-spectrum effects of the Arthrospiraplatensis F&M-C256 extract on Vitis vinifera L. cv. Pinot Nero grown in pots in optimal conditions and under water stress. To evaluate the effects, major physiological parameters of the plants and the quali-quantitative parameters of grape were analyzed. According to the res
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31

Pool, R. M., R. M. Dunst, and A. N. Lakso. "Comparison of Sod, Mulch, Cultivation, and Herbicide Floor Management Practices for Grape Production in Nonirrigated Vineyards." Journal of the American Society for Horticultural Science 115, no. 6 (November 1990): 872–77. http://dx.doi.org/10.21273/jashs.115.6.872.

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In two 4-year studies, `Concord' (Vitis labruscana, Bailey) cane pruning weight, yield, and soluble solids content were similar for vines growing under herbicide and cultivation treatments. In a vineyard with shallow soil, vines grown under mulch had a significantly greater increase in cane pruning weight than did vines grown with sod middles. Growth suppression of sod-managed vines occurred only in relatively dry years. While there was annual variation in vine response to herbicide and cultivation treatments, the cumulative responses over the 4-year study were similar for these treatments. A
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32

Smart, D. R., S. Cosby Hess, R. Plant, O. Feihn, H. Heymann, and S. Ebeler. "Geospatial variation of grapevine water status, soil water availability, grape composition and sensory characteristics in a spatially heterogeneous premium wine grape vineyard." SOIL Discussions 1, no. 1 (November 27, 2014): 1013–72. http://dx.doi.org/10.5194/soild-1-1013-2014.

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Abstract. The geoscience component of terroir in wine grape production continues to be criticized for its quasi-mystical nature, and lack of testable hypotheses. Nonetheless, recent relational investigations are emerging and most involve water availability as captured by available water capacity (AWC, texture) or plant available water (PAW) in the root zone of soil as being a key factor. The second finding emerging may be that the degree of microscale variability in PAW and other soil factors at the vineyard scale renders larger regional characterizations questionable. Cimatic variables like t
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Wimmer, Madeline, Beth Ann Workmaster, and Amaya Atucha. "Training Systems for Cold Climate Interspecific Hybrid Grape Cultivars in Northern Climate Regions." HortTechnology 28, no. 2 (April 2018): 202–11. http://dx.doi.org/10.21273/horttech03946-17.

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Training systems influence grapevine (Vitis sp.) size, shape, and canopy architecture, which ultimately affects yield and fruit composition. Cold climate interspecific hybrid grapes (CCIHG) have propelled the creation of a new and fast-growing grape and wine industry in the northeast and upper midwest of the United States. This study evaluated the effect of three training systems: high cordon (HC), midwire vertical shoot positioning (VSP), and modified Scott Henry (SH) on vine growth, yield, and fruit composition of four CCIHG cultivars, Brianna, Frontenac, La Crescent, and Marquette, during t
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Wise, John C. "Grape, Season Long Broad Spectrum Insect Control, 1996." Arthropod Management Tests 22, no. 1 (January 1, 1997): 55. http://dx.doi.org/10.1093/amt/22.1.55.

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Abstract Insecticides were applied to mature (16 year old) cv. ‘Concord’ grape vines at the Trevor Nichols Research Complex near Fennville, MI at a rate of 50 GPA using a FMC 1029 airblast sprayer. Treatments were arranged in a completely randomized design of single 50 ft long rows of vines replicated four times. Applications of materials were made on 28 Jun (Bloom, 725 Degree Days base 50 for GLH), 10 Jul (3C), 22 Jul (4C), 7 Aug (5C), 21 Aug (6C), 3 Sep (7C), and 16 Sep (8C). Grape leafhopper evaluations were made on 19 Jul and 15 Aug by randomly selecting 50 leaves per replicate, or 200 lea
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Liu, Scarlett, Xuesong Li, Hongkun Wu, Bolai Xin, Julie Tang, Paul R. Petrie, and Mark Whitty. "A robust automated flower estimation system for grape vines." Biosystems Engineering 172 (August 2018): 110–23. http://dx.doi.org/10.1016/j.biosystemseng.2018.05.009.

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Teissedre, Pierre-Louis. "Composition of grape and wine from resistant vines varieties." OENO One 52, no. 3 (August 3, 2018): 211–17. http://dx.doi.org/10.20870/oeno-one.2018.52.3.2223.

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Obtaining resistant varieties to diseases without loss of organoleptic quality is a real challenge for oenology. Inter-specific hybridization of grapevines began in the 19th century and was initially aimed at introducing pest and disease resistance in offspring. Later, several breeding programmes implemented worldwide led to the development of varieties showing different characteristics such as cold-hardiness, short/long growing season, and pest resistance. Vitis vinifera grapes have preferred flavour characteristics for wine production, but they tend to be susceptible to pests, diseases, and
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Spano, D., P. Duce, P. Deidda, and A. Motroni. "COMPARISON OF ACTUAL AND CROP EVAPOTRANSPIRATION FROM GRAPE VINES." Acta Horticulturae, no. 537 (October 2000): 177–84. http://dx.doi.org/10.17660/actahortic.2000.537.18.

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McFarlane, N. J. B., B. Tisseyre, C. Sinfort, R. D. Tillett, and F. Sevila. "Image Analysis for Pruning of Long Wood Grape Vines." Journal of Agricultural Engineering Research 66, no. 2 (February 1997): 111–19. http://dx.doi.org/10.1006/jaer.1996.0125.

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Bettiga, Larry J. "Growth and Productivity of Green-growing and Dormant ‘Chardonnay’ Benchgrafts during Vineyard Establishment." HortTechnology 25, no. 6 (December 2015): 752–56. http://dx.doi.org/10.21273/horttech.25.6.752.

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Vine growth and yield variables were measured for grape (Vitis vinifera) planted as green-growing and dormant ‘Chardonnay’ benchgrafts during the first 8 years after vineyard establishment. Benchgrafts of ‘Freedom’ and ‘Kober 5BB’ rootstock were evaluated. Vines planted as green-growing benchgrafts had smaller trunk and cordon diameters and lower pruning weights. Growth variables measured were higher for ‘Freedom’ benchgrafts than ‘Kober 5BB’. Yields were higher for vines planted as dormant benchgrafts in three of the first six production years when compared with vines established with green-g
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Dokoozlian, N. K. "Gibberellic Acid Application Timing Influences the Bud Viability and Fruitfulness of Seedless Table Grape Cultivars." HortScience 31, no. 4 (August 1996): 598c—598. http://dx.doi.org/10.21273/hortsci.31.4.598c.

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A study initiated in Spring 1995 examined the influence of gibberellic acid (GA3) application timing on the return fruitfulness of Thompson Seedless and Flame Seedless table grapes. Vines treated with GA3 at prebloom, bloom, or berry set were compared to vines treated at prebloom + bloom + berry set and nontreated vines. Application amounts for each cultivar and timing were based on commercial label recommendations. Nodes from each treatment were collected in mid-winter and dissected, and their viability and fruitfulness were recorded. Bud viability (shoots per bud) and fruitfulness (clusters
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Allegro, Gianluca, Chiara Pastore, Gabriele Valentini, and Ilaria Filippetti. "Effects of delayed winter pruning on vine performance and grape composition in cv. Merlot." BIO Web of Conferences 13 (2019): 04003. http://dx.doi.org/10.1051/bioconf/20191304003.

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Delaying winter pruning until after budburst is a technique that can retard vine phenological phases and reduce grape sugar concentration at harvest. Given these characteristics, many studies have recently been conducted to verify the ability of pruning after budburst to contrast the negative effects of climate change. In our trial, vines of the cv. Merlot, trained to a VSP spur pruned cordon, were pre-pruned leaving 8 nodes per shoot and hand finished when the shoots sprouted by the apical nodes were at BBCH13 (treatment LP) and BBCH18 stage (treatment VLP). Vines refinished during winter wer
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Lu, Jiang, Olusola Lamikanra, and Stephen Leong. "Induction of Seedlessness in `Triumph' Muscadine Grape (Vitis rotundifolia Michx.) by Applying Gibberellic Acid." HortScience 32, no. 1 (February 1997): 89–90. http://dx.doi.org/10.21273/hortsci.32.1.89.

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Gibberellic acid (GA3), a plant growth regulator used routinely in the production of seedless bunch grapes, was sprayed on the seeded muscadine grape cultivar Triumph. GA3 at 100, 200, and 300 mg·L-1 was sprayed on the leaves and fruit clusters at late bloom; a second spray followed 1 week later. The sprayed vines produced more than 20% seedless berries and the size of the berries with seeds increased significantly. GA3 application in commercial muscadine grape production may have potential benefits.
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Liu, Liyuan, and Hua Li. "Review: Research progress in amur grape, Vitis amurensis Rupr." Canadian Journal of Plant Science 93, no. 4 (July 2013): 565–75. http://dx.doi.org/10.4141/cjps2012-202.

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Liu, L. Y. and Li, H. 2013. Review: Research progress in amur grape, Vitis amurensis Rupr. Can. J. Plant Sci. 93: 565–575. Vitis amurensis Rupr., which originates in China and has several important traits, such as cold- and disease-resistance, is now commercially cultivated in China. Vitis amurensis has a strong root system and high growth vigor allowing it to survive temperatures as low as −40°C without the need to bury its vines, saving inputs in vineyard management. During growth, V. amurensis vines have high resistance to many diseases, such as grape white rot and grape anthracnose, and ar
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Senthilkumar, S., R. Vijayakumar, K. Soorianathasundaram, and D. Durga Devi. "Effect of Pruning Severity on V egetative, Physiological, Yield and Quality Attributes in Grape (Vitis vinifera L.): A Review." Current Agriculture Research Journal 3, no. 1 (May 5, 2015): 42–54. http://dx.doi.org/10.12944/carj.3.1.06.

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Grape is one among the most delicious, refreshing and nourishing fruits of the world. It is one of the earliest fruits grown by man. The berries are a good source of sugars and minerals like Ca, Mg, Fe, and vitamins like B1, B2, and C. Grape has so many uses and is so unique that no fruit can challenge their superiority. Crop load is the most important factor affecting yield and cluster quality as well as vine vigor of both seeded and seedless varieties. Hence, an optimum canopy size and bunch number per vine are to be maintained for achieving better fruit Quality which warrants proper balanci
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Matta, Frank B., and Obadiah M. Njue. "CHEMICAL MANIPULATION OF GRAPE DORMANCY UNDER SIMULATED TROPICAL CONDITIONS." HortScience 30, no. 3 (June 1995): 435g—436. http://dx.doi.org/10.21273/hortsci.30.3.435g.

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Defoliating chemicals (ammonium thiosulfate, ethrel, and thidiazuron) were evaluated on 8-month-old `Canadice' and `Concord' grapes. The effectiveness of chemical defoliators was determined 20 days after application. Vines were pruned after defoliation and dormancy breaking chemicals (thiourea, cyanamide, and gibberellic acid (GA3) were applied 4 days later. All treatments were applied as sprays. All chemicals were effective in defoliating the vines of both cultivars. Generally, the higher concentrations (ammonium thiosulfate, ethrel, and thidiazuron at 15.15, 3.0, and 0.35 g·liter–1, respecti
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Zufferey, Vivian, Thibaut Verdenal, Agnès Dienes, Sandrine Belcher, Fabrice Lorenzini, Carole Koestel, Marie Blackford, et al. "The influence of vine water regime on the leaf gas exchange, berry composition and wine quality of Arvine grapes in Switzerland." OENO One 54, no. 3 (August 25, 2020): 553–68. http://dx.doi.org/10.20870/oeno-one.2020.54.3.3106.

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Aims: The aim of the present study was to analyse the impact of different water regimes on the physiological and agronomical behavior of an aromatic white grapevine (cv. Arvine) by means of various levels of irrigation. The consequences of the plant water status were evaluated by carrying out a chemical (aromatic precursors) and sensorial analysis of the resulting wines.Methods and results: Adult vines of Vitis vinifera L. cv. Arvine grafted onto 5BB were subjected to different water regimes (various levels of irrigation) during the growing season. Physiological indicators were used to monitor
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Lu, J., and O. Lamikanra. "Effects of Gibberellic Acid Treatments on Fruit and Seed Development of Muscadine Grapes." HortScience 31, no. 4 (August 1996): 662f—663. http://dx.doi.org/10.21273/hortsci.31.4.662f.

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Gibberellic acid, a plant growth regulator commonly sprayed for seedless bunch grape cultivars, was used to spray on the seeded muscadine grape cultivars `Carlos', `Fry', `Higgins' and `Triumph'. GA3 at 100 to 300 ppm were sprayed on leaves and fruit clusters before and after anthesis. The flower/fruit clusters also were dipped into a much higher concentration (1000 ppm) in addition to the sprayed concentration of GA3. Berry weight significantly increased in all the sprayed vines, with a maximal increase up to 50%. Early and more uniform ripening was observed in the cultivar `Triumph'. More th
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48

Pittcock, J. Kim, Richard E. Durham, Roy E. Mitchell, William L. Lipe, and Timothy E. Elkner. "Relative Vigor Following a Severe Freeze of 18 Wine-grape Varieties at Brownfield, Texas." HortScience 30, no. 4 (July 1995): 845A—845. http://dx.doi.org/10.21273/hortsci.30.4.845a.

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Texas Tech Univ., in collaboration with the Texas Agricultural Experiment Station, Lubbock, maintains a research vineyard at Brownfield. Texas. Thirty-one wine-grape varieties are being evaluated for performance on the Texas High Plains. The vines were planted on their own roots in a completely randomized design with four replications and two plants per replication. The average rainfall, including supplemental irrigation, was ≈550 mm/year. Sufficient data exist for comparison of 18 varieties during the 1992–1994 seasons, following a severe freeze in Nov. 1991. The vines were trained to a horiz
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49

Johnson, James W., Robert D. Kriegel, and John C. Wise. "Grape, Season-Long Broad-Spectrum Control, 1994." Arthropod Management Tests 20, no. 1 (January 1, 1995): 50. http://dx.doi.org/10.1093/amt/20.1.50.

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Abstract Insecticides were applied to mature 14 year old grape vines at the Trevor Nichols Research Complex near Fennville, MI at a rate of 50 gpa using a FMC 1029 airblast sprayer. Treatments were arranged in a completely randomized design of single 50-foot-long rows of vines replicated 4 times. Insecticides were applied, as indicated in the table, on the following dates: 4 May (BS), 25 May (1C), 9 Jun (Bloom), 22 Jun (3C), 3 Jul (4C), 17 Jul (5C), 29 Jul (6C), 12 Aug (7C), 25 Aug (8C) and 6 Sep (9C). Second generation grape berry moth application was timed for one wk after sustained catch in
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Amato, Davide, Giuseppe Montanaro, Stephan Summerer, Nunzio Briglia, Faouzi Attia, Emmanuel Challet, and Vitale Nuzzo. "The effects of calcite silicon-mediated particle film application on leaf temperature and grape composition of Merlot (Vitis vinifera L.) vines under different irrigation conditions." OENO One 54, no. 4 (November 9, 2020): 1007–20. http://dx.doi.org/10.20870/oeno-one.2020.54.4.4020.

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Aim: This study examined whether the application of calcite-silicon mediated particle film (CaPF) at veraison can mitigate a drought-induced increase in leaf temperature on grapevine, thus contributing to improved leaf functionality, yield and grape composition traits.Methods and results: A total of 48 five-year-old Merlot (Vitis vinifera L.) vines grafted onto SO4 were grown (in 20 L PVC pots) under Mediterranean conditions (Southern Italy). The vines were pruned to a single spur with 3 winter buds irrigated daily to 100 % field capacity, and fertilised weekly.At veraison and using a 2×2 fact
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