SciELO - Scientific Electronic Library Online

 
vol.18 número2Alterações nas propriedades químicas de Latossolo Vermelho distrófico pela aplicação de água residuária de suinoculturaUtilização da polpa de batata residual em snacks como perspectiva de redução do impacto ambiental índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Engenharia Agrícola e Ambiental

versão On-line ISSN 1807-1929

Resumo

BRIXNER, Gabriel F. et al. Risk of frost and duration of the phenological subperiods of 'Cabernet Sauvignon' in the Campanha. Rev. bras. eng. agríc. ambient. [online]. 2014, vol.18, n.2, pp.210-216. ISSN 1807-1929.  https://doi.org/10.1590/S1415-43662014000200013.

The study aimed to identify the periods with higher risk of frost formation and to evaluate the changes regarding the duration of the phenological cycle of the vine Cabernet Sauvignon, based on the thermal availability of Alegrete, Bagé, Quaraí, São Gabriel, Santana do Livramento and Uruguaiana, located in the Campanha region of Rio Grande do Sul state. The meteorological data such as maximum and minimum air temperature for the period from 1961 to 2010 were used. In order to determine the risk of frost formation, it was considered as favorable condition for the formation when the minimum temperature was less than or equal to 3 °C. To determine the phenological behavior of the cultivar Cabernet Sauvignon the sum of degrees-day, covering the period from August 1 to October 10 as the beginning of the sprouting. It was found that Uruguaiana and São Gabriel in early September had low frost formation risk, at 5% level, while in the other municipalities the last date occurs in early October. As for the development subperiod of Cabernet Sauvignon it is possible to observe variations in the total number of days in relation to the sprouting periods, as well as among the municipalities of Campanha.

Palavras-chave : phenology, degrees-day (DD); thermal requirement; probability; Vitis vinifera.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons