2008

Fatores climáticos, como as altas temperaturas ambientais no semiárido do Nordeste, podem influenciar a atividade reprodutiva do macho caprino. Sabe-se que nessa espécie, a sazonalidade reprodutiva é uma característica importante na limitação da produtividade. Dentre as raças caprinas, a Moxotó…

There are three different uses of the term 'inoformation' in ordinary language: in the restricted sense, it means diverse types of material objects, such as data or documents ('information-as-thing'); alternatively, the term is used as in reference to the act…

The combination of soil science, forestry, agronomy and biology allowed an analytical comparison of various experimental mixed culture systems. From these studies, a descriptor system was developed which allows to understand the contribution of each plant species to nutrient cycling,…

Asian soybean rust caused by Phakoprsora pachyrhizi is one of the most important diseases for soybean cultivation. The disease causes yield loss as high as 80%. Until now, fungicide applications were most reliable control measure. However, farmers often lose timing…

This review discusses the present trends in studies on the impacts of climate change on plant diseases. Firstly, the approaches used for studying the potential effects of altered temperature, water availability, CO2 and O3 air concentrations, and UV-B radiation on…

Biochar has the potential to make a major contribution to the mitigation of climate change, and enhancement of plant production. However, in order for biochar to fulfill this promise, the industry and regulating bodies must take steps to manage potential…

A method using LC/ESI-MS/MS for the quantitative analysis of Ochratoxin A in roasted coffee was described. Linearity was demonstrated (r = 0.9175). The limits of detection and quantification were 1.0 and 3.0 ng g-1, respectively. Trueness, repeatability and intermediate precision…

The "Cerrado Region" - the acid savannas of Brazil, as many as thirty years ago, were considered as ecosystem unsuitable for agriculture crop production because environmental limitations. However, a burst in agricultural development has taken place in the area during…

Com o avanço das tecnologias de informação e comunicação (TIC), configura-se um novo cenário que favorece o compartilhamento e a construção coletiva de conhecimento, especialmente em espaços virtuais. Na sociedade da informação, o paradigma é a participação, a colaboração e…