Ministry of Agriculture

About: Ministry of Agriculture is a government organization based out in Rio de Janeiro, Brazil. It is known for research contribution in the topics: Biology & Chemistry. The organization has 1153 authors who have published 1189 publications receiving 14442 citations.

A technological approach to the morphofunctional classification of seedlings of 50 Brazilian forest species

Abstract: A technological approach to the morphofunctional classification of forest species seedlings defines the essential structures in the evaluation of germination testing and identifies changes in this structures that suggest abnormalities. The objective was to associate morphofunctional seedling classification to seed germination testing using official germination methods for 50 forest species from Amazon, Caatinga, Cerrado, Atlantic Forest and Pantanal biomes. Morphofunctional classification and abnormalities were defined using seedlings from 232 germination pre-tests and 1,160 samples that were formed for each species using seeds from distinct locations and with at least three levels of vigor. The phanero-epigeal germination with a non-developed epicotyl predominated among species (84%). Common in hypogeal germination, the development of the epicotyl occurred only in seedlings of Anadenanthera colubrina and Erythrina speciosa, both with epigeal germination. The need to supply and sustain the great mass produced in its long life cycle, the presence of the primary root was considered essential for the normal seedling classification of these forest species. Curled, stunted, necrotic, bifurcated primary root and those retained in the seed coat or in the fruit structures, were the main abnormalities of the seedling root systems. Damages to the shoot system were uncommon.

A análise de risco como ferramenta estratégica para o serviço veterinário oficial brasileiro: dificuldades e desafios

Abstract: The official veterinary service is responsible for protecting public and animal health, certifying the supply of safe animal products to consumers. A tool that assists in the pursuit of these goals is the risk analysis, which began to be used in the second half of the 1990s for the official veterinary services of countries. To carry out a risk analysis, qualitative or quantitative, one must initially identify the danger, which in the area of animal health is usually the pathogen causing a disease. The subsequent step is risk assessment, which must be analyzed, supported by scientific studies or experts in the field, the possible ways of introduction, exposition and maintenance of the pathogen in the susceptible population, as well biological, economic, political and social consequences. The third step in the analysis of risk refers to risk management, which aims to propose measures to mitigate the risk to the desired level, and assess the cost/benefit of each measure. The last phase of a risk analysis is risk communication. This step is critical for success of the study and should be initiated along with risk analysis itself, always leaving open a permanent communication with all social actors interested in risk analysis. Risk analysis has become an important tool used by managers of the official veterinary services in decision-making, contributing to the choice of alternatives that give scientifically the lowest animal health risk. This study conducted a review of the literature on risk analysis aimed to expose its definition and development process, as well as to see how it is being used and what limitations and challenges of using this tool by the Brazilian national veterinary service.

Emprego de Dolichos lablab L. como adubo verde. I - Estudo do plantio intercalado na cultura do milho

Abstract: In five localities in the State of Sao Paulo the interplanting of Dolichos lablab L. var. 697 with corn was studied. The effects of time and methods of planting of Dolichos and interplanting at different proportions of Dolichosand corn on the production of corn was investigated. Interplanting Dolichosand corn and the incorporation of Dolichosdid not have any influence on corn production. Dolichos can be planted from October to February and it produces more green matter when planted in October that is at the same time as corn, than later.