Uso de bordaduras e tamanho de parcelas experimentais de batata doce.

Os objetivos deste trabalho são avaliar a necessidade de utilização de bordaduaras em experimentos com batata doce e definir o tamanho das parcelas experimentais em pesquisas com esta hortaliça.CD-ROM. Suplemento. Trabalho apresentado no 51. Congresso Brasileiro de Olericultura, Viçosa, MG

Catalogação do banco de dados do melhoramento de feijoeiro comum da Embrapa.

O objetivo deste trabalho foi recuperar arquivos de dados, a fim de reunir, uniformizar, armazenar, indexar e disponibilizar as informações técnicas de interesse para as atividades de pesquisa

Parecença entre acessos de feijoeiro comum de grãos vermelhos utilizando o método de Harrison.

O termo parecença mede o grau de parentesco entre dois indivíduos. A opção do uso de tal termo se deve ao fato de representar em uma única palavra os termos similaridade e dissimilaridade. Neste experimento foram utilizados 15 acessos tradicionais de feijoeiro comum de grãos vermelhos do BAG-Embrapa Arroz e Feijão. Fez-se a opção por usar o coeficiente proposto por Harrison (1968). Tal opção baseia-se no fato de que alguns coeficientes não são aplicáveis quando suas variáveis geram uma indefinição matemática por conta de valores nulos. O acesso um foi o que mais apresentou similaridade. Por outro lado, vários acessos apresentaram divergência máxima, ou seja, 1,00 de dissimilaridade. O acesso três apresentou dissimilaridade máxima (1,00) com oito acessos

Perfil metabólico de ovelhas Rabo Largo criadas em dois sistemas de alimentação.

Resumo: O estudo objetivou avaliar o perfil metabólico das ovelhas Rabo Largo, suplementadas durante o período seco. Foram utilizadas 40 ovelhas da raça Rabo Largo divididas em dois grupos, os animais do lote suplementado (LSP) e animais do lote não suplementado (LNSP). Ambos os lotes tiveram acesso a caatinga raleada com área aproximada de 15 ha. Foram analisados os indicadores bioquímicos do ?status? nutricional protéico pela quantificação de proteína total, albumina, globulina e uréia sérica e o indicador energético pela determinação das concentrações séricas de glicose. A proteína total não foi influenciada pela suplementação (P>0,05). Já a albumina nas ovelhas suplementadas (2,54±0,37 g/dL) foi significativamente superior (P0,05). Since albumin supplementation in sheep (2.54 ± 0.37 g / dL) was significantly higher (P<0,05) compared to sheep that were not supplemented (2,28 ±0,32 g / dL). However, the serum globulin content of the supplement was lower (P<0,05) ewes not supplemented (3.82 ± 0.53 vs. 4.17 ± 0.49 g / dL, respectively). It was observed that sheep are not supplemented serum glucose values (41.85 ± 8.11 mg / dL) below the sheep were supplemented (48,24 ± 7,62 mg / dL). As for urea differ (P<0,05) in treatments, and the supplemented animals had lower values than non-supplemented (20,13 ± 9.12 vs 31,26 ± 6,32 mg / dL, respectively). In general, blood levels of the metabolites were within the basic reference

Perfil metabólico de ovelhas Rabo Largo cridas em dois sistemas de alimentação.

Resumo: O estudo foi realizado na Fazenda Experimental Vale do Acaraú da Universidade Estadual Vale do Acaraú - FAEX, localizada no município de Sobral-CE. Foram utilizadas 40 ovelhas da raça Rabo Largo divididos em dois grupos, os animais do lote suplementado (LSP) tiveram acesso a 300 gramas/cab./dia de feno de leucena (Leucaena leucocephala) durante o período seco e 1% de milho triturado em relação à média de peso vivo durante todo o ano, sendo ajustados semanalmente, além do acesso a água e sal mineral ad libitum. E os animais do lote não suplementado (LNSP) tiveram apenas acesso a água e sal mineral ad libitum. A proteína total não foi influenciada pela suplementação (P>0,05). Já a albumina nas ovelhas suplementadas (2,54±0,37) foi significativamente superior (P 0.05). Since albumin supplementation in sheep (2.54 ± 0.37) was significantly higher (P <0.05) compared to sheep that were not supplemented (2.28 ± 0.32). However, the serum globulin content of the supplement was lower (P <0.05) ewes not supplemented (3.82 ± 0.53 vs. 4.17 ± 0.49 IU / L respectively). It was found that sheep are not supplemented serum glucose levels (41.85 ± 8.11) lower than the sheep that were supplemented (48.24 ± 7.62). As for urea differ (P <0.05) in treatments, and the supplemented animals had lower levels than non-supplemented (20.13 ± 9.12 vs 31.26 ± 6.32, respectively). In general, blood levels of the metabolites were within the basic reference

Stable integration and expression of a cry1la gene conferring resistance to fall armyworm and boll weevil in cotton plants.

BACKGROUND: Boll weevil is a serious pest of cotton crop. Effective control involves applications of chemical insecticides, increasing the cost of production and environmental pollution. The current genetically modified Bt crops have allowed great benefits to farmers but show activity limited to lepidopteran pests. This work reports on procedures adopted for integration and expression of a cry transgene conferring resistance to boll weevil and fall armyworm by usingmolecular tools. RESULTS: Four Brazilian cotton cultivars were microinjected with a minimal linear cassette generating 1248 putative lines. Complete gene integration was found in only one line (T0-34) containing one copy of cry1Ia detected by Southern blot. Protein was expressed in high concentration at 45 days after emergence (dae), decreasing by approximately 50% at 90 dae. Toxicity of the cry protein was demonstrated in feeding bioassays revealing 56.7% mortality to boll weevil fed buds and 88.1% mortality to fall armyworm fed leaves. A binding of cry1Ia antibody was found in the midgut of boll weevils fed on T0-34 buds in an immunodetection assay. CONCLUSION: The gene introduced into plants confers resistance to boll weevil and fall armyworm. Transmission of the transgene occurred normally to T1 progeny.All plants showed phenotypically normal growth,with fertile flowers and abundant seeds

Where the risk is more intense: riparian forests keep the euglossine bees community most affected by anthropic disturbance in the Caatinga dry forest.

Anthropogenic disturbances have drastic negative effects on the biodiversity, thereby also compromising the ecosystem service it provides. Bees are one of the key players since they provide essential pollination services for both natural and agriculture ecosystems. Nevertheless, these insects are facing an increasing threat due to expansion of urban areas and inappropriate land use practices. Therefore, understanding the impact of different anthropogenic disturbances on bee communities is essential to assure the ecosystem functioning and human well-being. In this study, we made use of a well-known bee group, i.e., euglossine bees (Euglossine: Apidae), and of a fast-growing city to investigate the impact of anthropogenic disturbance on bee community. Using scent traps, we monthly collected male euglossine bees in seven sampling areas, differing in terms of the anthropogenic use/disturbance. Land use in each area was characterized through pre-georeferenced images and mapping software and from these data we calculated an Anthropogenic Transformation Index. Our results reveal that anthropogenic disturbance negatively impacts the euglossine bee community, in contrast to the positive effect of the proximity to the river. However, and perhaps the most alarming aspect of our findings, is the interaction effect between these two conditions, demonstrating that as we approach the river, parameters such as abundance, species richness, and diversity of these bee communities become more compromised by disturbance. Our study shows the urgent need to implement effective conservation strategies and sustainable management practices to protect and restore riparian forests in Caatinga urban areas, aiming to safeguard its associated biota and the valuable ecosystem services they provide.On-line