Produtividade de Cultivares de Palma de Óleo na Fase Juvenil em Área de Floresta Alterada no Sul de Roraima.

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Avaliação da composição do leite de cabras Moxotó, Canindé, SRD e anglonubiana criadas no Semi-Árido do Rio Grande do Norte.

O objetivo desse estudo foi avaliar o efeito da época do ano e da raça sobre a composição do leite de cabras criadas extensivamente (pastagem nativa) em uma região semi-árida do Rio Grande do Norte. Foram utilizadas 12 cabras em lactação, sendo quatro Moxotó, quatro Canindé, quatro SRD (sem raça definida) e quatro Anglunubiana. As amostras de leite foram coletadas a cada duas semanas, na ordenha da manhã, de 27/11/2007 a 11/06/2008 (27/11/07 a 04/03/08 - estação seca e 18/03/08 a 11/06/08 - estação chuvosa). O leite foi avaliado quanto ao seu teor de gordura, proteína, lactose, estrato seco total (EST) e estrato seco desengordurado (ESD). Houve efeito significativo (P<0,05) da raça e da estação do ano na composição do leite. Em ambas as estações, o leite das cabras Canindé, Moxotó e Anglonubiana apresentou teores de gordura e proteína superiores (P<0,05) ao leite das cabras SRD, podendo ser indicados para a produção de queijo

All Green, But Equal? Morphological Traits And Ecological Implications On Spores Of Three Species Of Mosses In The Brazilian Atlantic Forest.

Spores of the tropical mosses Pyrrhobryum spiniforme, Neckeropsis undulata and N. disticha were characterized regarding size, number per capsule and viability. Chemical substances were analyzed for P. spiniforme and N. undulata spores. Length of sporophyte seta (spore dispersal ability) was analyzed for P. spiniforme. Four to six colonies per species in each site (lowland and highland areas of an Atlantic Forest; Serra do Mar State Park, Brazil) were visited for the collection of capsules (2008 - 2009). Neckeropsis undulata in the highland area produced the largest spores (ca. 19 µm) with the highest viability. The smallest spores were found in N. disticha in the lowland (ca. 13 µm). Pyrrhobryum spiniforme produced more spores per capsule in the highland (ca. 150,000) than in lowland (ca. 40,000); longer sporophytic setae in the lowland (ca. 64 mm) than in the highland (ca. 43 mm); and similar sized spores in both areas (ca. 16 µm). Spores of N. undulata and P. spiniforme contained lipids and proteins in the cytoplasm, and acid/neutral lipids and pectins in the wall. Lipid bodies were larger in N. undulata than in P. spiniforme. No starch was recorded for spores. Pyrrhobryum spiniforme in the highland area, different from lowland, was characterized by low reproductive effort, but presented many spores per capsule.861249-6

Análise de Repetibilidade em Caracteres de Arquitetura da Planta e Produção em Pinhão-manso.

O objetivo deste trabalho foi estimar os coeficientes de repetibilidade para produção de grãos, números de ramos, altura e volume de copa do pinhão-manso, nos 10 e 20 anos pós-plantio

Acceptance of dishes based on mechanically separated meat of tambaqui (Colossoma macropomum) in a public school, Brazil.

In Brazil, due to economic and social factors, public policies are needed to grant access to quality nutrition in school. This provision should respect the local food culture; however, in the North, the region with the highest production of inland fisheries, fish consumption among students is still very low. The aim of the present study is to characterize Tambaqui (Colossoma macropomum) MSM, suggest planned school dishes based on this MSM and assesses their acceptability among students at the elementary and high school levels in northern Brazil. The study was carried out over one month and was a quantitative (hedonic scale and leftover/intake index) and qualitative research about preference. The participants were 120 elementary- and high-school students chosen randomly after they were authorized by their parents or legal guardians. Fish-based dishes were inserted in the diet of schoolchildren and their acceptability was evaluated. The children were also inquired about their fish consumption routines. The statistical analyses used were frequency tables and chi-squared independence test associated with Fisher?s exact test. Two dishes were well accepted by the students; however, the results showed that fish acceptance among younger students are higher than among adolescents. So, policies that promote fish intake and a healthy lifestyle must be stimulated since the early grades

Some biological parameters and colonization of Aleurodicus cocois on dwarf-cashew.

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Flutuação Populacional de Rhynchophorus palmarum L. (Coleoptera: Curculionidae) em Plantios de Palma de Óleo em Roraima.

This research aimed to evaluate the population fluctuation Rhynchophorus palmarum L. (Coleoptera: Curculionidae) in Elaeis guineensisJacq plantations in forest and savanna ecosystems in the state of Roraima. The research was conducted during the period from January 2011 to February 2012 in the experimental field of Embrapa Roraima: Monte Cristo and Caroebe in an area of 2 hectares with culture Oil Palm in each field. Traps baited with rollers cane sugar and aggregation pheromone for capturing insects in the vicinity of the plantations were distributed. Fluctuation occurred R. palmarum with population peaks in the months of July and August in the savanna ecosystem and from April to September in the forest environment. The population of R. palmarum was lower in months of low rainfall in the two environments assessed with a palm-oil-in Roraima.Esta pesquisa teve como objetivo avaliar a flutuação populacional de Rhynchophorus palmarum L. (Coleoptera: Curculionidae) em plantios de Elaeis guineensis Jacq, em ecossistemas de savana e floresta no estado de Roraima. A pesquisa foi desenvolvida durante o período de janeiro de 2011 a fevereiro de 2012 nos campos experimentais da Embrapa Roraima: Monte Cristo e Caroebe, numa área de 2 hectares com a cultura da Palma de Óleo, em cada campo. Foram distribuídas armadilhas iscadas com roletes de cana-de-açúcar e feromônio de agregação para captura dos insetos no entorno dos plantios. Ocorreu flutuação de R. palmarum com picos populacionais nos meses de julho e agosto no ecossistema de savana e de abril a setembro no ambiente de floresta. A população de R. palmarum foi menor em meses de baixa precipitação pluviométrica nos dois ambientes avaliados com a Palma de Óleo em Roraim