Data/hora: 24/06/2024 01:15:49

Biblioteca(s): | Embrapa Meio Ambiente.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 07/08/2017
Data da última atualização: | 07/08/2017
Autoria: | ANGELOTTI, F.; HAMADA, E.; MAGALHÃES, E. E.; GHINI, R.; GARRIDO, L. da R.; PEDRO JÚNIOR, M. J.
Afiliação: | FRANCISLENE ANGELOTTI, CPATSA; EMILIA HAMADA, CNPMA; Edineide Elisa Magalhães; RAQUEL GHINI, CNPMA; LUCAS DA RESSURREICAO GARRIDO, CNPUV; Mário José Pedro Júnior, IAC.
Título: | Climate change and the occurrence of downy mildew in Brazilian grapevines.
Ano de publicação: | 2017
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 6, p. 426-434, jun. 2017.
DOI: | http://dx.doi.org/10.1590/S0100-204X2017000600006
Idioma: | Inglês
Notas: | Título em português: Mudanças climáticas e ocorrência do míldio da videira no Brasil.
Conteúdo: | The objective of this work was to evaluate the potential impact of climate change on the occurrence of grapevine downy mildew in Brazil. Seedlings containing four to six leaves were sprayed with a sporangia suspension containing 105 sporangia per milliliter. After spraying, the seedlings were subjected to temperatures of 26, 28, 29.1, 30.4, and 31.8°C for 24 hours. The percentage of diseased leaf area and the latent period were evaluated. Maps of the geographic and temporal distribution of the disease were made considering the monthly average of the mean air temperature and leaf wetness duration for the reference climate or climate normal (1961-1990) and the future climates (2011-2040, 2041-2070, and 2071-2100), considering the A2 and B1 gas emission scenarios, designed by the Intergovernamental Panel on Climate Change (IPCC). Favorability ranges were set and used in logic functions of the geografical information system (GIS) to generate monthly maps for grapevine downy mildew. Rising temperatures interfered with the grapevine downy mildew infections, reduced the disease severity, and increased the latent period. Future climate scenarios indicate a reduction of favorability of downy mildew in Brazil, with variability in the different grape producing regions.
Palavras-Chave: | Geographical information system; Sistema de informações geográficas; Temperatura do ar.
Thesagro: | Clima; Doença; Míldio; Temperatura; Uva.
Thesaurus Nal: | Air temperature; Plasmopara viticola; Vitis.
Categoria do assunto: | H Saúde e Patologia
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (15562-1) - UPC - SP - DD -  -  -  - DIS