12 research outputs found
Avaliação de um protocolo de extração de DNA genômico a partir de sangue total.
bitstream/CNPGC-2010/13224/1/COT120.pd
The OBAA Standard for Developing Repositories of Learning Objects: the Case of Ocean Literacy in Azores
This paper describes the existing web resources of learning objects to promote ocean
literacy. The several projects and sites are explored, and the shortcomings revealed. The
limitations identified include insufficient metadata about registered learning objects and
lack of support for intelligent applications. As solution, we promote the seaThings project
that relies on a multi-disciplinary approach to promote literacy in the marine environment
by implementing a specific Learning Objects repositories (LOR) and a federation of
repositories (FED), supported by a OBAA, a versatile and innovative standard that will
provide the necessary support for intelligent applications for education purposes, to be used
in schools and other educational institutions.info:eu-repo/semantics/publishedVersio
Characterization of ZnAl2O4 Spinel Obtained by Hydrothermal and Microwave Assisted Combustion Method: A Comparative Study
Efeito de borda na diversidade, composição e estrutura da comunidade arbórea em uma floresta estacional decidual no Brasil Central
Diagnóstico clínico diferencial entre oclusão da artéria carótida interna e da artéria cerebral média
Application of plant growth regulators at pre-harvest for fruit development of 'PÊRA' oranges
The aim of the present work was to evaluate the effects of auxins and gibberellins when applied at pre-harvest to the fruit development, and to the ripening and natural fall of the fruit, in 'Pêra' oranges. Trees of Citrus sinensis Osbeck cv. Pêra, 5 years old, were utilized. The treatments applied were: GA3 + 2,4-D 12.5mg L-1 of each; GA3 + 2,4-D 25mg L-1 ; GA3 + 2,4-D 37.5mg L-1; GA3 + NAA 12.5mg L-1; GA3 + NAA 25mg L-1; GA3 + NAA 37.5mg L-1; NAA + 2,4-D 12.5mg L-1; NAA + 2,4-D 25mg L-1; NAA + 2,4-D 37.5mg L-1; and water (control). The treatments were applied 3 times, at intervals of 45 days. The variables evaluated were: rate of natural fall (%), fruit length and diameter (mm), and fresh fruit weight (g). None of the treatments promoved alterations in the development of the fruits, but they did reduce the natural fall rate, when compared to control, up to 78.05%, inhibiting the fruits' abscision as much as 3 months.<br>O trabalho objetivou avaliar os efeitos de auxinas e giberelinas, combinados e aplicados em pré-colheita no desenvolvimento e na taxa de queda natural de frutos de laranjeira 'Pêra'. Foram utilizadas árvores de laranjeira (Citrus sinensis Osbeck) cultivar Pêra com 5 anos de idade. Os tratamentos foram: GA3 + 2,4-D 12,5mg L-1 de cada; GA3 + 2,4-D 25mg L-1; GA3 + 2,4-D 37,5mg L-1; GA3 + NAA 12,5mg L-1; GA3 + NAA 25mg L-1; GA3 + NAA 37,5mg L-1; NAA + 2,4-D 12,5mg L-1; NAA + 2,4-D 25mg L-1; NAA + 2,4-D 37,5mg L-1 e testemunha (água). Durante todo o período experimental foram realizadas três aplicações a intervalos de 45 dias. As variáveis avaliadas foram: Taxa de queda natural dos frutos (%), comprimento (mm), diâmetro (mm) e massa fresca dos frutos (g). Nenhum dos tratamentos proporcionaram alterações no desenvolvimento final dos frutos, mas reduziram a taxa de queda natural em comparação com a testemunha em até 78,05%, inibindo a abscisão dos frutos em até três meses