Pruning affects the vegetative balance of the wine grape (Vitis vinifera L.)

Abstract

The cultivation of grapes for the production of wine at altitudes between 2,200 and 2,600 masl started in the department of Boyacá in 1982. Quality wines are produced by the Ain Karim Vineyard in Ricaurte High. It is necessary to have wine grapes that possess suitable organoleptic compounds at harvest in order to guarantee quality grape must that can be converted into wine. For this, it is necessary to have a suitable ratio between the inflows and the outflows and to guarantee production, quality and vegetative sustainability over time, conserving the equilibrium and benefiting the productive potential of the vineyard. This study aimed to evaluate the productive and vegetative balance effect in the wine grape varieties (Vitis vinífera L.) Cabernet Sauvignon and Sauvignon Blanc in Sutamarchán-Boyacá, considering different pruning types (short, long, and mixed). A bifactorial, completely random statistical design was used. At the time of harvest, the fruit production and pruned wood were evaluated. The long-pruned vines presented the best behavior and the most balanced inflow/outflow ratio, while Sauvignon Blanc demonstrated a better productive yield. Meanwhile, the short and mixed prunings presented the better values for the ravaz index, indicating that they are more suitable for the conditions of the region, allowing for sustainability during the productive cycles of the wine grapes.

Effects of green pruning and combine microelement applications on bud fruitfulness, vegetative development and cluster characteristics of ‘Trakya İlkeren’ grape cultivar

“…For this subject; Mostafa et al (2017) emphasized that foliar nutrient application (Fulvic acid +Mg + K) gave the highest significant increase in bud burst and fertility, shoot length, leaf surface area, total chlorophyll content, yield/vine, TSS%, total sugars and total anthocyanin content in berry skin while it gave the lowest decrease in acidity compared with that of control vines. Thanks to the green pruning performed during the vegetation period, the incidence of fungal diseases such as Downy mildew, Powdery mildew and Botrytis cinerea, which develop rapidly in environments with high relative humidity and in shaded areas, decreases and the contact of the applied fungucides to the inner parts of the vine and the clusters becomes easier (Sholberg et al, 2008, Mahrous andShalaby 2009;Austin et al, 2011;Almanza-Merchán et al, 2014;de Bem et al, 2015).…”

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“…Today, for the cultivation of high-quality grafting material of grapes, it is generally accepted to use short pruning and to regulate the load of the vines with buds and shoots, which allows using the growth of the bushes to the maximum for harvesting grape stalks (Ursu, 1989). When determining the load of vines with shoots, their growth strength, soil and climatic conditions and the level of agrotechnics of plantings are considered (Perstnev, 2001;Feitosa et al, 2018;Almanza-Merchán et al, 2014). Other authors believe that the load of vines with shoots should be determined by the amount of annual growth of vines for the previous year or by the amount of phytomass of growth of one-year shoots per vine (Chulkov, Mukhortova, 2018;Kumar et al, 2017).…”

Uso de produto à base de alho associado à poda no desempenho de videiras finas no oeste paranaense

“…A poda em videiras finas cv. Cabernet Sauvignon e Sauvignon Blanc apresentou melhores resultados no equilíbrio vegetativo/ produtivo, em estudos na Colômbia (Almanza-Merchán et al, 2014).…”