Data/hora: 01/06/2024 05:09:00

Biblioteca(s): | Embrapa Uva e Vinho.
Data corrente: | 26/02/2021
Data da última atualização: | 26/02/2021
Autoria: | L. S. PAIM; HAWERROTH, F. J.; G. A. B. MARODIM; D. S. MAUTA; SIMÕES, F.
Afiliação: | PAIM, L. S., 1Federal University of Rio Grande do Sul, Faculty of Agronomy, Porto Alegre, RS, Brazil; FERNANDO JOSE HAWERROTH, CNPUV; MARODIM, G. A. B., 1Federal University of Rio Grande do Sul, Faculty of Agronomy, Porto Alegre, RS, Brazil; MAUTA, D. S., 1Federal University of Rio Grande do Sul, Faculty of Agronomy, Porto Alegre, RS, Brazil; F. SIMÕES, 3State University of Rio Grande do Sul, Vacaria, RS, Brazil.
Título: | Hydrogen cyanamide levels and mineral oil to budbreak induction of 'Baigent' apple trees under anti-hail net in southern Brazil.
Ano de publicação: | 2020
Fonte/Imprenta: | Acta Horticulturae, v. 1268, Jan. 2020.
DOI: | 10.17660/ActaHortic.2020.1268.43
Idioma: | Inglês
Notas: | Proc. XI Int. Symp. on Protected Cultivation in Mild Winter Climates and I Int. Symp. on Nettings and Screens in Horticulture
Conteúdo: | This study aimed to evaluate hydrogen cyanamide (HC) concentrations in combination with mineral oil (MO) to budbreak induction of ?Baigent? apple trees under anti-hail net, in southern Brazil. The study was carried out in a commercial apple orchard under black anti-hail net, during 2017/18 and 2018/19 growing seasons, in Vacaria, RS, Brazil. A RCB design was adopted, according to a 7×2 factorial structure, with seven levels of budbreak promoter ? 1) control (no application); 2) MO 3.5%; 3) MO 3.5% + HC 0.17%; 4) MO 3.5% + HC 0.34% (standard application); 5) MO 3.5% + HC 0.51%; 6) MO 3.5% + HC 0.69%; 7) MO 3.5% + HC 0.86% ? and two levels of tree?s canopy portion ? 1) lower and 2) upper portion. The flowering dates and duration, axillary and terminal budbreak, fruit set and production parameters were evaluated. The flowering dates were advanced by MO 3.5% + HC concentrations, particularly in tree?s canopy upper portion with HC above than 0.34%. The axillary budbreak was intensified by MO 3.5% + HC concentrations with low chilling accumulation during the winter, particularly with HC above than 0.34%. The MO 3.5% and MO 3.5% + HC concentrations effects on fruit set data were probably masked and the highest fruit set values were provided by tree?s canopy upper portion. The fruit production variables were not affected by MO 3.5% and MO 3.5% + HC concentrations in the study conditions. The use of MO 3.5% + HC above than 0.34% is an alternative to budbreak induction of ?Baigent? apple trees under anti-hail net, in southern Brazil. Keywords: Malus domestica Borkh., insufficient chilling, dormancy overcoming, budbreak promoter, protected cropping
Palavras-Chave: | Budbreak promoteR; Dormancy overcoming; Insufficient chilling; Malus domestica Borkh; Protected cropping.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Uva e Vinho (CNPUV)
Exemplares: | CNPUV - (18598-1) - UPC - AP - DD -  -  -  - DIS