Data/hora: 03/06/2024 06:46:01

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 09/06/2022
Data da última atualização: | 09/06/2022
Autoria: | PINTO, F. A. M. F.; PORTO, V. B. C.; GUIMARÃES, R. A.; SIQUEIRA, C. da S.; FARIA, M. R. de; MACHADO, J. da C.; MEDEIROS, H. N.; SILVA, D. D. da; SANTOS NETO, H.; POZZA, E. A.; MEDEIROS, F. H. V. de.
Afiliação: | FELIPE AUGUSTO MORETTI FERREIRA PINTO, EPAGRI; VICTOR BIAZZOTTO CORREIA PORTO, Fundação de Apoio à Pesquisa e Desenvolvimento do Oeste Baiano; RAFAELA ARAÚJO GUIMARÃES, Universidade Federal de Lavras; CAROLINA DA SILVA SIQUEIRA, Universidade Federal de Lavras; MIRIAN RABELO DE FARIA, Universidade Estadual Paulista Júlio Mesquita Filho; JOSÉ DA CRUZ MACHADO, Universidade Federal de Lavras; HENRIQUE NOVAES MEDEIROS, Universidade Federal de Lavras; DAGMA DIONISIA DA SILVA, CNPMS; HELON SANTOS NETO, Universidade Federal de Lavras; EDSON AMPELIO POZZA, Universidade Federal de Lavras; FLÁVIO HENRIQUE VASCONCELOS DE MEDEIROS, Universidade Federal de Lavras.
Título: | Detection and factors that induce Stenocarpella spp. survival in maize stubble and soil suppressiveness under tropical conditions.
Ano de publicação: | 2022
Fonte/Imprenta: | Applied Sciences, v. 12, 4974, 2022.
DOI: | https://doi.org/10.3390/app12104974
Idioma: | Inglês
Conteúdo: | Stenocarpella spp. causes stalk and ear rot in maize and overwinters in stubble during the off-season. Understanding the factors that guide saprophytic colonization is a crucial strategy for management. In this study, we analyzed the abiotic factors and crop management practices in relation to the inoculum of Stenocarpella spp. in stubble by qPCR. Soil samples were used for suppressiveness tests against Fusarium verticillioides, Fusarium graminearum, and Stenocarpella maydis. In the 29 fields, different levels of Stenocarpella spp. were detected. Only three fields were considered suppressive for the three pathogens. Heat maps showed that soil suppressiveness was inversely related to the pathogen concentration, and the suppressiveness of one pathogen was correlated with the suppressiveness of other pathogens. Under no-tillage systems in which rotation with soybeans was adopted, Stenocarpella spp. were detected at lower concentrations than in areas that adopted notillage systems with maize monocultures. While in tillage systems, the maize?maize monocropping increases the inoculum level of Stenocarpella spp. Crop rotation is a factor related to the observed reduction in the pathogen concentration and increases in the broad-spectrum antagonistic microbial communities. These communities guide the suppressiveness of soil-borne diseases in maize fields cultivated under tropical conditions.
Palavras-Chave: | Solo supressivo.
Thesagro: | Doença de Planta; Milho; Podridão do Caule; Resto de Cultura; Rotação de Cultura.
Categoria do assunto: | H Saúde e Patologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143874/1/Detection-and-factors-that-induce-Stenocarpella.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (29831-1) - UPC - AP - DD -  -  -  - DIS