Data/hora: 14/06/2024 05:35:52

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 13/01/2023
Data da última atualização: | 24/03/2023
Autoria: | ARAÚJO, F. H. V.; SANTOS, J. C. B. dos; SANTOS, J. B. dos; SILVA, A. F. da; RAMOS, R. S.; SILVA, R. S. da; SHABANI, F.
Afiliação: | FAUSTO HENRIQUE VIEIRA ARAÚJO, Universidade Federal dos Vales do Jequitinhonha e Mucuri; JOSE CARLOS BARBOSA DOS SANTOS, Universidade Federal dos Vales do Jequitinhonha e Mucuri; JOSE BARBOSA DOS SANTOS, Universidade Federal dos Vales do Jequitinhonha e Mucuri; ALEXANDRE FERREIRA DA SILVA, CNPMS; RODRIGO SOARES RAMOS, Universidade Federal de Viçosa; RICARDO SIQUEIRA DA SILVA, Universidade Federal dos Vales do Jequitinhonha e Mucuri; FARZIN SHABANI, Qatar University.
Título: | Spread of Striga asiatica through suitable climatic conditions: risk assessment in new areas producing Zea mays in South America.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of Arid Environments, v. 210, 104924, 2023.
DOI: | https://doi.org/10.1016/j.jaridenv.2022.104924
Idioma: | Inglês
Conteúdo: | Striga asiatica (dicot), an obligate hemiparasitic of monocots, is a potential threat to South America. Determining the ecological factors that explain the occurrence and predicting suitable areas for S. asiatica are fundamental for designing prevention strategies. We developed a Spatio-temporal dynamics model and evaluated Brazil?s Weekly Growth Index (GIW) for S. asiatica. We analyzed four Brazilian regions (Central-West, South, Southeast, and Northeast) to verify the local seasonal variation of the species in climatic data. Our results indicated areas with favorable climatic suitability for the species in part of South America. Seasonal assessment models showed that high rainfall and the dry and cold periods common in tropical regions affect the GIW for S. asiatica. When we associate periods with maximum rainfall of 53 mm per week and temperature above 20 &#9702;C, the GIW approachesthe optimal index for the regions evaluated, indicating the influence of soil moisture and air temperature. Our risk assessment indicated that the Southeast and Northeast are at the most significant risk of S. asiatica invasion. Projections for climate change between 2040?2059 showed expansions in areas suitable for S. asiatica compared to the current climate of South America.
Palavras-Chave: | Adequação climática; Parasita.
Thesagro: | Crescimento; Praga Exótica.
Categoria do assunto: | O Insetos e Entomologia
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (30033-1) - UPC - AP - DD -  -  -  - DIS