Manejo do oídio da mangueira (Oidium mangiferae) na produção integrada de manga.

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Metodologia de monitoramento de doenças da mangueira resultados obtidos.

Suplemento. Edição dos Resumos do 35 Congresso Brasileiro de Fitopatologia, Recife, ago. 2002

Manejo da malformação vegetativa e floral - embonecamento (Fusarium subglutinans) na produção integrada de manga.

O Programa de Produção Integrada de Frutas proporciona maior segurança de cultivo, garantia de maiores produções ou de menores perdas de frutos por doenças e maior sanidade na pós-colheita. Esta garantia é possibilitada pela prática de monitoramento fitossanitário que visa prever e controlar o início do problema em toda a cadeia produtiva.bitstream/CPATSA/33058/1/INT66.pd

Manejo da antracnose (Colletotrichum gloeosporioides) na produção integrada de manga.

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Manejo da morte descendente (Botryodiplodia theobromae + Lasiodiplodia theobromae) na produção integrada de manga.

O manejo de doenças na Produção Integrada de Manga (PI - Manga) tem como ferramenta a prática do monitoramento de doenças, cuja metodologia, hoje ajustada, traz maior segurança de cultivo para os mangicultores. Neste monitoramento, é necessário que o operador conheça todas as expressões dos sintomas que o patógeno pode causar, como, também, as partes das plantas de maior preferência, a fenologia da cultura, a idade de maior ou menor suscetibilidade e as condições climáticas ou época de ocorrência. A morte descendente, por exemplo, apresenta sintomas em todos os órgãos da planta, em qualquer idade e em todas as fases fenológicas da cultura.bitstream/CPATSA/33053/1/INT62.pd

Mango disease management and fruit integrated production system in the brazilian semi-arid.

This study had the objective of monitoring mango diseases as an important practice within the crop management in the Fruit Integrated Production Program - FIP

Universal relaxation function in nonextensive systems

We have derived the dipolar relaxation function for a cluster model whose volume distribution was obtained from the generalized maximum Tsallis nonextensive entropy principle. The power law exponents of the relaxation function are simply related to a global fractal parameter $\alpha$ and for large time to the entropy nonextensivity parameter $q$. For intermediate times the relaxation follows a stretched exponential behavior. The asymptotic power law behaviors both in the time and the frequency domains coincide with those of the Weron generalized dielectric function derived from an extension of the Levy central limit theorem. They are in full agreement with the Jonscher universality principle. Moreover our model gives a physical interpretation of the mathematical parameters of the Weron stochastic theory and opens new paths to understand the ubiquity of self-similarity and power laws in the relaxation of large classes of materials in terms of their fractal and nonextensive properties.Comment: Two figures. Submitted for publicatio

Prevalence of Salmonella on tomatoes from organic and conventional production in Rio de Janeiro (Brazil).

Outbreaks of salmonellosis associated with tomatoes have been related over the past fifteen years. Tomatoes may become surface contaminated with Salmonella spp. from production of consumption. Purpose: The purpose of this study was to evaluate the prevalence of Salmonella spp. on tomatoes surface from organic and conventional production. Samples were collected in the street cendors and supermarkets, and analzed by two methods; the mini-VIDAS SLM assay a specific enzyme-linked fluorescent immonoassay (ELFA) rapid method and the conventional FDA-BAM. Methods: A total of 263 tomatoes were collected during a two-year (2010-2012) survey. A hundred twenty-seven were from organic production, 61 from supermarkets and 66 from street vendors. From conventional production 136 samples were collected, being 84 from supermarkets and 52 from street vendors. All samples were simultaneously surface analyzed by mini-VIDAS SLM and FDA BAM. Results: Salmonella spp. was not detected by the conventional method and two false positives were found by mini-VIDAS SLM. Significance: Surface tomatoes from organic and conventional production analyzed in the city of Rio de Janeiro showed no potential Salmonella risk to their consumption