Foliar application of nitrogenous compounds and elicitors to tempranillo grapevines: Microbiological implications

This study was aimed to analyze the effects of the nitrogen foliar application, and elicitation on microbial populations of musts. The nitrogenous compounds were raw and treated wastewater from mushroom industry and a commercial yeast derivate; the elicitors were methyl jasmonate, chitosan and one c...

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Detalhes bibliográficos
Autores: González-Arenzana, L., Portu, Javier, Gutiérrez, Ana Rosa, Santamaría, Pilar, López Alfaro, Isabel, López Martín, Rosa
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202787
Acesso em linha:http://hdl.handle.net/10261/202787
Access Level:acceso abierto
Palavra-chave:Vine leaves
Elicitation
Grape
Diversity
Nitrogen
Descrição
Resumo:This study was aimed to analyze the effects of the nitrogen foliar application, and elicitation on microbial populations of musts. The nitrogenous compounds were raw and treated wastewater from mushroom industry and a commercial yeast derivate; the elicitors were methyl jasmonate, chitosan and one commercial elicitor from a yeast source. Those six products were sprayed as pre-harvest treatment over the leaves of Tempranillo grapevines for improving quality and maturity of grapes. The applications of raw and treated wastewaters from mushroom industry, chitosan and methyl jasmonate elicitation did not cause changes in microbial diversity of must samples. In contrast, spraying commercial yeast derivate products made the must microbiota reach a high richness of species that would be positive in ecological terms. This research succeeded in establishing the impacts of foliar applications in the grapevines on the microbial community, and in any case, negative impacts were observed so that, presumably, these foliar applications can be perfectly implemented as agronomic practice.