Relevant bibliographies by topics / Cluster thinning

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Academic literature on the topic 'Cluster thinning'

Author: Grafiati
Published: 4 June 2021
Last updated: 27 July 2025

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Journal articles on the topic "Cluster thinning"

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Woodburn, K. R., and J. R. Clark. "Cluster Modification Effects on the Performance of an Arkansas Table Grape Selection." HortScience 33, no. 4 (1998): 592b—592. http://dx.doi.org/10.21273/hortsci.33.4.592b.

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Flower cluster thinning effects were investigated on A-2274, a large-fruited, seedless table grape selection from the Univ. of Arkansas Grape Breeding Program. The objective of the study was to evaluate flower cluster thinning as a method to enhance cluster size and fill. Treatments included thinning to one flower cluster per shoot, removing one-half of each cluster, and a control (no flowers removed). Each treatment consisted of three, single-vine replications, with each vine being pruned to 32 buds. Removal of entire flower clusters (to one per shoot) resulted in larger clusters and a trend
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Kaps, Martin L., and Garth A. Cahoon. "Berry Thinning and Cluster Thinning Influence Vegetative Growth, Yield, Fruit Composition, and Net Photosynthesis of ‘Seyval blanc’ Grapes." Journal of the American Society for Horticultural Science 114, no. 1 (1989): 20–24. http://dx.doi.org/10.21273/jashs.114.1.20.

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Abstract Crop reduction on single-shoot ‘Seyval blanc’ grapevines by either berry or cluster thinning resulted in a decrease in total fruit weight and an accompanying increase in berry weight, °Brix, and vegetative growth. Titratable acidity and pH of the juice were not consistently affected by either berry or cluster thinning. Net leaf photosynthesis at 43 days past full bloom increased with higher cluster number per plant. Berry weight was greatest when the crop of berries were borne in three clusters per shoot rather than in a single cluster. Berry thinning appears to be an acceptable subst
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Wilson, Patsy E., Douglas D. Archbold, Joseph G. Masabni, and S. Kaan Kurtural. "Cropload Management of ‘Vidal blanc’ Improves Primary Bud Cold Hardiness and Maintains Berry Composition in the Lower Midwestern United States." HortScience 49, no. 7 (2014): 874–80. http://dx.doi.org/10.21273/hortsci.49.7.874.

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Canopy architecture, yield components, berry composition, pruning weight, Ravaz Index, and midwinter primary bud cold hardiness of own-rooted ‘Vidal blanc’ (Vitis vinifera × Vitis rupestris) were measured in response to balanced pruning formula treatments of 20, 30, or 40 nodes retained for the first 454 g of dormant pruning weight and an additional 10 nodes for each additional 454 g and three cluster thinning levels of one, two, and two+ clusters per shoot in 2006 and 2007. Although the pruning formula affected the distance between shoots along the canopy, and the number of count shoots per h
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Striegler, R. Keith, and Vidal Perez-Munoz. "INITIAL EFFECT OF CROP CONTROL METHOD ON GROWTH, YIELD, AND FRUIT COMPOSITION OF ZINFANDEL GRAPEVINES IN CALIFORNIA." HortScience 27, no. 6 (1992): 600b—600. http://dx.doi.org/10.21273/hortsci.27.6.600b.

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Crop control methods were evaluated for two seasons in a commercial Zinfandel vineyard. The vineyard was trellised using a vertical two wire system and cane pruned. Vines were third-leaf when the experiment began. Treatments included control, cluster thinning, and shoot thinning. Cluster thinning consisted of removal of all clusters except the oasal cluster, while shoot thinning consisted of removal of 50% of shoots on canes. Treatments were imposed two weeks postbloom. Yield was not significantly affected by crop control method. Cluster thinning tended to increase berry weight and cluster wei
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Dami, Imed, Dave Ferree, Anton Prajitna, and Dave Scurlock. "A Five-year Study on the Effect of Cluster Thinning on Yield and Fruit Composition of `Chambourcin' Grapevines." HortScience 41, no. 3 (2006): 586–88. http://dx.doi.org/10.21273/hortsci.41.3.586.

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`Chambourcin' (Vitis sp.) is a French-American hybrid cultivar that has the propensity to overcrop, and its performance under cool climate and short growing season is not known. This study was conducted for five years (2000 to 2004) to evaluate the effect of three levels of cluster thinning (10, 20, and 30 clusters per vine) on yield and fruit composition of `Chambourcin' grown in northeastern Ohio. Cluster thinning reduced yield per vine and crop load, but increased pruning, cluster and berry weights. Cluster thinning also improved juice composition by increasing soluble solids and pH but not
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Ivanišević, Dragoslav, Mladen Kalajdžić, Mato Drenjančević, Vladimir Puškaš, and Nada Korać. "The impact of cluster thinning and leaf removal timing on the grape quality and concentration of monomeric anthocyanins in Cabernet-Sauvignon and Probus (Vitis vinifera L.) wines." OENO One 54, no. 1 (2020): 63–74. http://dx.doi.org/10.20870/oeno-one.2020.54.1.2505.

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Aim: Leaf removal around clusters and cluster thinning are techniques usually applied in cool-climate vineyards in order to achieve optimal grape maturity. However, the impact of the timing of these two operations differs across varieties. Thus, the aim of the present work was to investigate the effects of cluster thinning and leaf removal timing (performed at three specific time points) on grape quality and monomeric anthocyanins in the wines of Cabernet-Sauvignon and Probus (Kadarka × Cabernet-Sauvignon, Vitis vinifera L.)Methods and results: The experiment was conducted in Sremski Karlovci
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Reynolds, Andrew G., Robert M. Pool, and Leonard R. Mattick. "Effect of Shoot Density and Crop Control on Growth, Yield, Fruit Composition, and Wine Quality of ‘Seyval blanc’ Grapes." Journal of the American Society for Horticultural Science 111, no. 1 (1986): 55–63. http://dx.doi.org/10.21273/jashs.111.1.55.

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Abstract A factorialized thinning level/shoot density experiment which was started in 1980 demonstrated that ‘Seyval blanc’ grapes benefits from cluster thinning in terms of vine size maintenance, cane ripening, berry weight, and Brix. Reducing shoot density led to increased cane ripening. Concomitant increases in cluster exposure improved fruit composition and led to higher berry weights. However, maintaining reasonably high shoot densities (4 shoots/30 cm of row or more) also was essential to maintain yield and vine size, even when crop was controlled by thinning. Levels of 4 shoots/30 cm of
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Mu, Xinyang, Magni Hussain, Long He, et al. "An Advanced Robotic System for Precision Chemical Thinning of Apple Blossoms." Journal of the ASABE 66, no. 5 (2023): 1125–34. http://dx.doi.org/10.13031/ja.15678.

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Highlights A cartesian robotic spraying system was developed for precision apple blossom thinning. Flower clusters were detected and localized with deep learning model for target spraying. A communication algorithm was developed for positioning the spray end-effector to the target flowers. The cartesian robotic system greatly reduced chemical usage while maintaining thinning effectiveness in the final green fruit set. Abstract. Crop thinning, including blossom thinning, is one of the critical management strategies that determines the annual profitability of apple orchards. Challenges still rem
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Xu, Xiaoyu, Chifang Cheng, Xu Qian, Ying Shi, Changqing Duan, and Yibin Lan. "Influences of Cluster Thinning on Fatty Acids and Green Leaf Volatiles in the Production of Cabernet Sauvignon Grapes and Wines in the Northwest of China." Plants 13, no. 9 (2024): 1225. http://dx.doi.org/10.3390/plants13091225.

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Cluster thinning has been widely applied in yield management and its effect on green leaf volatiles (GLVs) in wines has seldom been studied. GLVs are important flavor compositions for grapes and wines. This work aimed to investigate the impact of cluster thinning on these volatiles and their precursors in grapes and wines. Severe cluster thinning (CT1) and medium cluster thinning (CT2) were performed on Cabernet Sauvignon (Vitis vinifera L.) vines in two sites (G-farm and Y-farm) from Xinjiang province in the Northwest of China. The impact of cluster thinning treatments on the accumulation of
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Kurtural, S. Kaan, Imed E. Dami, and Bradley H. Taylor. "Effects of Pruning and Cluster Thinning on Yield and Fruit Composition of `Chambourcin' Grapevines." HortTechnology 16, no. 2 (2006): 233–40. http://dx.doi.org/10.21273/horttech.16.2.0233.

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Response of yield components and fruit composition of `Chambourcin' (Vitis vinifera × V. rupestris) grapevines to three pruning levels of 15, 20, and 25 nodes retained for each pound of dormant prunings; and three cluster thinning levels of 1, 2, and 2+ clusters per shoot in 2002 and 1, 1.2, and 1.5 clusters per shoot in 2003 were measured at two vineyards in the lower midwestern United States. In both years of the study, there was very little interaction of pruning and cluster thinning. The proportion of non-count shoots increased within the canopy in response to increased pruning severity. P
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Dissertations / Theses on the topic "Cluster thinning"

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Mauritson, Cameron John. "The Fruiting and Berry-Chemistry Responses of Zinfandel Grapes to Cluster Thinning." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/60.

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A field experiment was conducted in the Rockpile appellation of Sonoma County during 2007 and 2008. The experimental design was a randomized complete block with five replicates. Zinfandel vines were subjected to three levels of cluster thinning during the lag phase of berry growth: vines were thinned to 2 clusters per shoot with shoulders retained if present (2CS), 1 cluster per shoot with shoulders retained if present (1CS), or 2 clusters per shoot with shoulders removed if present (2CNS). Cluster thinning Zinfandel grapevines during lag phase led to reductions in yield and crop load and i
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Liggieri, Silvia. "Optimizing grape cluster exposure to increase desirable aroma compounds and decrease disease severity." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/87535.

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By increasing fruit exposure to sunlight and influencing fruit development, leaf thinning in the fruit zone can improve grape quality and lower disease incidence; however, further investigations on the timing, varietal response and intensity are needed to optimize results and to better understand underlying physiologic responses. Fruit zone leaf thinning was applied at different timing and intensities to evaluate its effect on cluster health and fruit composition in Cabernet Sauvignon and Chardonnay. Treatments consisted of control (C), pre-bloom leaf thinning (PB) and two levels of fruit-set
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Grave, João Carlos Sousa de Barros. "Efeitos da desfolha e monda de cachos no rendimento e qualidade da uva e do vinho na casta Merlot." Master's thesis, ISA, 2013. http://hdl.handle.net/10400.5/6171.

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Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia / Faculdade de Ciências. Universidade do Porto<br>This study was created with a purpose of searching for an effective method of promoting an higher concentration of colour compounds in the wine, on Merlot variety. We evaluated the effects of three different canopy management practices in the vineyard: early defoliation at pre-bloom (DF), partial defoliation at pea size (DN) and cluster thinning at veraison (M), compared with a control (T). The trial was conducted in 2012, in a company called Encosta do Sobral Sociedade Agríco
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Fertel, Thomas Jerome. "CLUSTER THINNING EFFECTS ON METHOXYPYRAZINE, RESVERATROL AND BERRY CHEMISTRY IN VITIS VINIFERA CV. CABERNET SAUVIGNON." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/535.

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Cabernet sauvignon is the most widely planted red wine grape in California and is valued in the hundreds of millions of dollars. Cabernet sauvignon grapes, when severely vigorous or overcropped, can contain vegetal aromas and flavors when harvested. 3-alkyl-methoxypyrazines are the volatile compounds responsible for this effect and can lower the perceived quality of the wine. Resveratrol is a phytoalexin that has many medical and health benefits and can be found in red wines. An experiment was conducted in Paso Robles, CA to assess the effects of five yield levels, manipulated through cluster
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Monteiro, Rui Miguel de Jesus. "Desfolha precoce na casta Aragonez." Master's thesis, ISA, 2014. http://hdl.handle.net/10400.5/6802.

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Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia / Faculdade de Ciências. Universidade do Porto<br>This study aimed to the influence of two techniques, early defoliation and cluster thinning, in the agronomic behavior of Aragonez, its effects on yield, health and quality of grapes. The trial was conducted in 2013, on a vineyard of Quinta do Pinto, in Lisbon wine region, Portugal. The treatments studied were defoliation at flowering (ED), defoliation at the end of pea size and cluster thinning at verasion (D&T) and a non-defoliated and non-thinned treatment was used as a co
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Calhau, André Filipe Perdigão. "Efeitos da desfolha precoce e da monda de cachos no rendimento e qualidade de uvas e vinho na casta Cabernet Sauvignon." Master's thesis, ISA/UTL, 2011. http://hdl.handle.net/10400.5/4094.

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Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia<br>This study tested two techniques: cluster thinning and early defoliation in order to determine their effectiveness in yield control and its effects on quality of grapes and wine of Cabernet Sauvignon. The trial was conducted in 2009, on a vineyard of Encosta do Sobral Agricultural Society, situated in the Tomar, a sub-region of Tejo wine region, Portugal. The treatments studied were cluster thinning at verasion, defoliation at flowering and control. The leaf removal caused a small fruit set reduction, but didn‟t induce a s
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Pinto, Miguel Guerreiro Mestre Messias. "Efeito da época e intensidade de monda nas castas Aragonês e Alicante Bouschet." Master's thesis, ISA/UTL, 2013. http://hdl.handle.net/10400.5/5649.

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Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia<br>The quality of the grapes is changeable and through this study we pretend to analyze the effect of intensity and season of cluster’s thinning (M0 – control, M1 – thinning, leaving one cluster/ talon in buckshot berry season, M2 - thinning, leaving one cluster/talon in verasion season, M3 - thinning, leaving one cluster/stalk in buckshot berry season, M4 - thinning, leaving one cluster/ stalk in verasion season) over leaf area, canopy structure, grape maturation and yield. The thinning consisted on a qualitative cluster rem
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Mawdsley, Paul F. W. "The Effects of Cluster Thinning on Vine Performance, Fruit, and Wine Composition of Pinot Noir (Clone 115) in the Edna Valley of California." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2090.

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A three-year study was conducted at a commercial vineyard site in California’s Edna Valley AVA to evaluate the physiological and agronomical effects of the timing of cluster thinning on Pinot noir (clone 115) grapevines. Vines were thinned to one cluster per shoot at three selected time-points during the growing season (bloom, bloom + 4 weeks, bloom + 8 weeks), and fruit from each treatment was harvested and made into wine. Across all growing seasons, yield decreased 43% in thinned vines relative to un-thinned control vines. No effect of cluster thinning or interaction with growing season was
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Yoder, Carleton C. "Effect of vineyard management of Cabernet Sauvignon (Vitis vinifera L.) grape glycosides." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-08222008-063601/.

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Moreira, Manuel Adão Marques Pacheco Botelho. "Densidade do coberto e monda na casta Alfrocheiro na Região do Dão." Master's thesis, ISA/UTL, 2007. http://hdl.handle.net/10400.5/5088.

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Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia<br>Throughout two years (2005 and 2006), have been studied the effects of three canopy management techniques (reduction of shoot density, basal leaf removal and qualitative cluster thinning), on the behaviour of the vine variety ‘Alfrocheiro’. The trial, installed in Dão region, in a private vineyard (Dão Sul - Soc. Vitivinícola, S.A.), had three shoot densities (test, 18 and 12 shoots/m of canopy), two different treatments of basal leaf removal (test and basal leaf removal at veraison). Two treatments of qualitative cl
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Conference papers on the topic "Cluster thinning"

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Ishikawa, Takuji, Nobuyoshi Kawabata, Katsushi Fujita, and Yutaka Miyake. "Fundamental Characteristics of Viscoelastic Fluids Simulated by a Bead-Spring-Damper Macro Model With Interaction." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2705.

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Abstract The flow field of viscoelastic fluids is commonly analyzed by using constitutive equations. In this paper, a bead-spring-damper macro model with interaction is proposed as an alternative to analyze a viscoelastic flow. A tetrahedral structure of beads and springs models a gathering of intertwined polymer chains. Behavior of the macro model and the cluster is computed under a simple shear flow condition. Shear-thinning of viscosity, the mechanism of generation of normal stress differences and the effect of slip in the interaction are investigated. The results show that the elongation o
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Gunasekaran, Abirami Krishnan, and Vairamani Raju. "Flowlines Identification Using Cathodic Protection for Repair Activities." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/210887-ms.

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Abstract In ADNOC Onshore, during regular business operations, there are needs to maintain/replace/repair flow lines due to variety of reasons Rerouting of flow lines.Replacing flow lines due to excessive thinning of flow line due to corrosion.Third party damage.Replacing a section of flow line due to a leak However, correctly identifying the flowline for maintenance / repair in the Fields is challenging because the target flowline is Same size and identical,Inaccessible due to sand dunes/under road crossing and isAmongst cluster of flowlines with no markersIn the same right of way Time and ti
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Chai, Bingji, Yiming Guo, Xinxing Xie, and Qu Zhang. "Finite Element Simulation and Experimental Study of the in-Mold Graining Process." In WCX SAE World Congress Experience. SAE International, 2025. https://doi.org/10.4271/2025-01-8330.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;In-Mold Graining (IMG) is an innovative production technology applied to the skin wrapping of automotive interior components. In the design of automotive interior components of door panels and instrument clusters, to overcome process-related problems, such as the thinning of grain patterns and excessive reduction in thickness, simulation of the skin vacuum forming process is required. The Thermoplastic Olefin (TPO) skin material is investigated in this paper, and a viscoelastic mechanical model for this material is estab
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