Efeitos do thidiazuron e do ácido giberélico nas características dos cachos e bagos da uva de mesa 'Vênus' na região noroeste do estado de São Paulo

Abstract

EFFECTS OF THIDIAZURON AND GIBBERELLIC ACID ON CLUSTER AND BERRY CHARACTERISTICS OF VÊNUS TABLE GRAPE IN THE NORTHWESTERN SÃO PAULO STATEABSTRACT The use of growth regulators is widely diffused in vine crops to improve grapes quality (Vitis vinifera L.), aiming mainly the increase of fruit size and set, loosening clusters, and elimination of seeds. In this context, a trial was carried out in a vineyard located at Urânia-SP, Northwestern São Paulo State, during two seasons. It was used thidiazuron at 5 or 10mg.L -1 and gibberellic acid at 30mg.L -1 , combined or not. The following variables were evaluated: weight, length and width of clusters and berries; weight of rachis; number of berries; number of trace-seeds; and total soluble solids content, total titratable acidity, and TSS/TTA ratio of juice. Gibberellic acid applications increased weight, length, width and number of berries, and reduced number of trace-seeds. Association to thidiazuron potentiated gibberellic acid effects regarding 1. Parte da tese de doutorado do primeiro autor apresentada ao curso de pós

Efecto De Aspersiones De Biorreguladores en Precosecha Sobre El Crecimiento Y Maduración Del Mango Keitt

“…Maurer et al (2019) establecieron que la producción de etileno es uno de los primeros indicadores de la maduración de los frutos. Botelho et al (2003) encontraron un efecto sinérgico de tidiazuron (TDZ) y AG 3 para retrasar la maduración de frutos de uva, como se observó para frutos de mango en el presente estudio. El comportamiento de Figura 3.…”

“…(Duguma et al, 2014). Las citocininas, con su acción antisenescente (Osugi y Sakakibara, 2015), se han usado en uva (Vitis vinifera L.) (Botelho et al, 2003). retención y la vida útil de los frutos del mango (Ahmed et al, 2012).…”