Seed In Paper

to interfere in the metabolism of another by means of substances released into the environment. The objective was to investigate the allelopathic effects of aqueous extracts of fresh and dried leaves of Persea americana on germination and early growth of lettuce. Extracts were prepared at concentrations of 2, 4 and 8%. Phytochemical profile, pH and osmotic potential were also performed from the extracts. Treatments consisted of four replicates of 25 seeds of lettuce distributed in…

ABSTRACT The aim of this paper is to present a study on adoption of educational computers in Brazil, specifically for elementary schools. The use of computers within the school environment has been debated by scholars of great importance and its contribution to the strengthening of the Brazilian education. The interaction between student and teacher had an ally that has brought many benefits in the educational sector, and also change, causing mainly teachers review concepts in…

positivamente no uso dos computadores e da internet nas escolas Referencias Bibliograficas: ALMEIDA, M. E. B. & PRADO, M. E. B. "A formação de educadores em serviço com foco nas práticas escolares com o uso do laptop educacional em uma escola pública". In: XIX Simpósio Brasileiro de Informática na Educação, 2008, Fortaleza. Sbie Tecnologia e educação para todos. Fortaleza: Universidade Federal do Ceará, 2008. ANDRADE, P. F. & LIMA, M. C. M. Programa Nacional de Informática Educativa.…

(The family Xyridaceae in the municipality of Mucugê, Bahia State, Brazil). We aimed to elaborate the monograph of Xyridaceae from the municipality of Mucugê in Central Bahia. Mucugê is located in the northern range of Espinhaço Ridge, within Parque Nacional da Chapada Diamantina and Parque Municipal de Mucugê. The study was based on field collections and herbarium specimens and revealed the occurrence of 19 species, including five endemics for Chapada Diamantina. This paper is part…

(The family Xyridaceae in the municipality of Mucugê, Bahia State, Brazil). We aimed to elaborate the monograph of Xyridaceae from the municipality of Mucugê in Central Bahia. Mucugê is located in the northern range of Espinhaço Ridge, within Parque Nacional da Chapada Diamantina and Parque Municipal de Mucugê. The study was based on field collections and herbarium specimens and revealed the occurrence of 19 species, including five endemics for Chapada Diamantina. This paper is part…

aceito em 19/5/04; publicado na web em 9/9/04 Educação Quim. Nova, Vol. 28, No. 1, 149-152, 2005 EXTRACTION OF PIGMENTS FROM SEEDS OF Bixa orellana L.: AN ALTERNATIVE FOR EXPERIMENTAL COURSES IN ORGANIC CHEMISTRY. This paper describes methodologies for the extraction and characterization by TLC, UV-VIS, IR and NMR of bixin from Bixa orellana L. (urucum) seeds. Based on the results, the extraction with NaOH 5% is the fastest, uses lowcost materials, requires two to four…

development and in the grain yield of soybean, at three sowing times (October 15th , November 15th and December 15th ) in Dourados, Mato Grosso do Sul State, Brazil. The work was based on meteorological data of 20 years. The soybean water deficiency was calculated through a daily sequential water balance. The photoperiod was determined through the latitude and the date. The water deficit decreased with the sowing time delay. Based on water deficit and photoperiod, the soybean sowing time…

dos dados X 6. Bibliografia ABRAF. Anuário estatístico da ABRAF 2012 ano base 2011 / ABRAF. – Brasília: 2012.150p. : il. color; 21 cm. AHUJA, M.R. Micropropagation à la carte. In: AHUJA, M. J. (ed.). Micropropagation of woody plants. Netherlands: Kluwer Academic Publisher, 1993. 507p. ALVARENGA, L.R.; CARVALHO, V.D. Uso de substâncias promotoras de enraizamento de estacas de frutíferas. Informe Agropecuário,…

legume in Latin America, is its main protein source being part of the dietary habits of the population, and its nourishing importance, among others, is due to its low cost of production in relation to animal protein. Although the protein potential of the legumes is high, they may present antinutritional factors and other substances harmful to health, such as enzyme protease inhibitors, lectins, antivitamins, tannins, flatulence factors, allergenics, phytates, and toxins. Therefore, this…

O Plano de Desenvolvimento da Educação – PDE e a visão sistêmica de educação The Plan for Educational Development in Brazil – PDE and the systems approach to education El Plan de Desarrollo de la Educación en Brasil – PDE y el enfoque sistémico de educación ELTON LUIZ NARDI MARILDA PASQUAL SCHNEIDER ZENILDE DURLI Resumo: o objetivo do artigo é discutir a visão sistêmica de educação presente no Plano de desenvolvimento da Educação (PdE). Inicialmente exploramos as relações entre o…