Propolis ethanolic extract for the control of brown eye spot and on development of coffee seedlings
Keywords:
Propolis, plant diseases, plant protection, Cercospora coffeicolaAbstract
The objective of this study was to evaluate the effect of ethanolic extract of propolis (EEP) on incidence of brown eye spot and development of coffee cv.‘Catuaí vermelho’. The experiment was arranged in a randomized block design with five replications and ten plants per plot. The experiment was a factorial scheme 4 x 6. The first factor EEP were made with four different percentages in the composition of raw propolis (1, 4, 7 and 10% of raw propolis with ethanol 92%). The second factor was the dilution of the EEP in water (0, 0.5, 1.0, 1.5, 2.0 and 2.5%). It was found that the EEP increased leaf area and leaf number per plot and growing quadratically. It was observed, with the curve of brown eye spot behavior that concentrations 1.0, 1.5 and 2.0% EEP had lower incidence, 2.5% intermediate and the control and 0.5% EEP had the highest incidence. The area under the curve of progress of brown eye spot leaf spot reduced quadratically with the implementation of EEP regardless of the proportion of the raw propolis extract. The increase in seedling growth was attributed to the presence of nutrients in propolis and reduced incidence of brown eye spot with application of EEP. The control of brown eye spot was awarded to the presence of nutrients, the formation of a layer of impediment on the sheets with wax and propolis resistance inducing effect of propolis.
Downloads
Downloads
Published
Issue
Section
License
Copyright (c) 2013 autor
This work is licensed under a Creative Commons Attribution 4.0 International License.
Aviso de direitos autorais
Os direitos autorais dos artigos publicados nesta revista permanecem com os autores, com direitos de primeira publicação para a revista.
Licença
Quando publicados nesta revista de acesso aberto, licenciados por meio do CC BY 4.0, os artigos são distribuídos gratuitamente, podendo ser compartilhados e adaptados para qualquer finalidade, inclusive comercial. Como atribuição de uso, a licença exige que seja dado o devido crédito, com um link para a licença e indicação de alterações. Isso não significa que o licenciante endosse o uso das informações do artigo, ou a pessoa que usou essas informações. Implica, também a, impossibilidade de aplicação de medidas legais ou tecnológicas que restrinjam o uso da informação por terceiros.