Cluster Thinning Effects on Yield and Grape Composition in Different Grapevine Cultivars

Palliotti, Alberto; Cartechini, Alvaro

doi:10.17660/actahortic.2000.512.11

Cited by 44 publications

(36 citation statements)

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“…In 2012, the plants suffered a major water stress and the cluster thinning got to rise the accumulation of sugars, advancing the date of harvest in a week compared to the reference treatment, which is in accordance with some authors in other varieties [2]. Conversely, in 2013 the environmental conditions exerted lower water stress in plants and, additionally, heavy rainfalls marked the end of maturation.…”

Section: Grape Compositionsupporting

confidence: 84%

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Cluster thinning in cv. Verdejo rainfed grown: Physiologic, agronomic and qualitative effects, in the D.O. Rueda (Spain)

Vicente

Yuste

2015

BIO Web of Conferences

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Abstract. The control of grape yield can be a critical aspect for grape quality of white varieties, moreover in the conditions of high water limitation that occurs in most Spanish growing regions. In the case of Verdejo variety, it is necessary to know its response to the reduction of the number of clusters per vine in order to regulate the production and improve the grape quality. During the period 2012-2014, the application of cluster thinning has been studied, by means of a treatment (A) of removing 27% of clusters, in comparison with a reference treatment (T) without thinning. The trial has been developed with vines of cv. Verdejo on 110R rootstock, planted in 2006 and trellised on bilateral Royat cordon. Vine distances were 2.60 m × 1.25 m (3077 plants/ ha). Vineyard growing was developed under rainfed conditions in Medina del Campo (Valladolid, Spain), within the D.O. Rueda. The water and physiological response of vines subjected to thinning has been similar to that of the reference vines. The vegetative growth has not shown significant differences between treatments. However, as expected, the cluster thinning resulted in a substantial reduction of grape yield as a direct consequence of the removal of clusters, although the cluster weight was slightly favored by cluster thinning. The quality of grapes has been modified by cluster thinning, in such a way that the sugar concentration has benefited, while the titratable acidity and tartaric acid have been reduced. However, the malic acid and the pH have hardly been affected by cluster thinning, whereas the potassium concentration has clearly increased as a result of cluster thinning.

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Section: Grape Compositionsupporting

confidence: 84%

“…If it is done early enough before harvest, it can help to achieve the desired status of maturity. The reduction of crop modifies the source-sink ratio and can facilitate the advancement of ripening (around a week) and increase the pH and soluble solids content, anthocyanins, polyphenols and total nitrogen in must [2].…”

Section: Introductionmentioning

confidence: 99%

Cluster thinning in cv. Verdejo rainfed grown: Physiologic, agronomic and qualitative effects, in the D.O. Rueda (Spain)

Vicente

Yuste

2015

BIO Web of Conferences

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“…O teor de açúcar da uva -normalmente expresso em sólidos solúveis totais (ºBrix) e densidade -geralmente apresenta correlação negativa com a produtividade do vinhedo (PALLIOTTI; CARTECHINI, 2000;MORINAGA et al, 2003;CUS et al, 2004;DAMI et al, 2005;DAMI et al, 2006;VALDÉS et al, 2009;PASTORE et al, 2011;SANTESTEBAN et al, 2011;SUN et al, 2012). Entretanto, nem sempre a videira responde dessa forma, pois há trabalhos que mostram que aumentos na produtividade do vinhedo não causam efeitos consistentes no teor de açúcar da uva ou mesmo não proporcionam aumentos no ºBrix (KELLER et al, 2005;FERRINI, 2005;IANNINI et al, 2007;REYNOLDS et al, 2007).…”

Section: Alberto Miele and Luiz Antenor Rizzonunclassified

“…Os resultados obtidos são variáveis, pois dependem, principalmente, da época em que é realizado e de sua intensidade. Além de diminuir o número de cachos por planta (REYNOLDS et al, 2007) e a produtividade do vinhedo (SUN et al, 2011), ele tem efeito em outros componentes de produção da videira, como a incidência da podridão cinzenta da uva, causada pelo fungo Botrytis cinerea (PALLIOTTI;CARTECHINI, 2000). Por outro lado, propicia aumento do peso do cacho e da baga (DAMI et al, 2006) e antecipa a maturação da uva (VALDÉS et al, 2009).…”

Section: Introductionunclassified

“…Quanto a seu efeito sobre a composição do mosto de uva, em geral, o desbaste de cacho aumenta o °Brix e o pH (DAMI et al, 2006), mas há trabalho mostrando que essa prática não tem efeito sobre essas variáveis (KELLER et al, 2005). Além disso, constata-se que ela também tem efeito no aumento da concentração de antocianinas e de taninos (PALLIOTTI; CARTECHINI, 2000), mas isso não é compartilhado por todos os autores (SUN et al, 2012). Normalmente, a qualidade da uva e do vinho está associada a produtividades moderadas ou baixas do vinhedo, enquanto as altas favorecem produtos de baixa qualidade.…”

Section: Introductionunclassified

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Intensidades da poda seca e do desbaste de cacho na composição da uva Cabernet Sauvignon

Miele

Rizzon

2013

Rev. Bras. Frutic.

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PRUNING AND CLUSTER THINNING INTENSITY ON THE COMPOSITION OF CABERNET SAUVIGNON GRAPEABSTRACT -The research was carried out in a Cabernet Sauvignon (Vitis vinifera L.) vineyard during four years in Bento Gonçalves-RS, Brazil. The objective was to determine the effect of the pruning and thinning intensity on the variables related to the grapevine yield components and grape must composition. Treatments consisted of two levels of pruning -short and long -and four levels of thinning (%) -0, 25, 50 and 75 -; there were five replicates. The experimental design was in a split-plot design. Results show that pruning and thinning had highly significant effect on the vineyard yield which varied from 10,971 kg/ ha − short pruning-75% cluster thinning − to 32,819 kg/ha − long pruning-0% cluster thinning − as average of four years. In addition, it was found significant effect on yield per bud, pruning weight per bud and per hectare, leaf area/fresh fruit weight and yield/pruning weight. However, there was a negligible effect on the variables related to sugar and acidity of the grape must. Component 1 of the principal component analysis discriminated short pruning-75% cluster thinning from long pruning-0% thinning and long pruning-25% thinning.

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Epidemiology of Botrytis cinerea in Orchard and Vine Crops

Elmer

Michailides

2007

Botrytis: Biology, Pathology and Control

117

141

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Cluster Thinning Effects on Yield and Grape Composition in Different Grapevine Cultivars

Cited by 44 publications

References 0 publications

Cluster thinning in cv. Verdejo rainfed grown: Physiologic, agronomic and qualitative effects, in the D.O. Rueda (Spain)

Cluster thinning in cv. Verdejo rainfed grown: Physiologic, agronomic and qualitative effects, in the D.O. Rueda (Spain)

Intensidades da poda seca e do desbaste de cacho na composição da uva Cabernet Sauvignon

Epidemiology of Botrytis cinerea in Orchard and Vine Crops

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