BRS Cohomology of Zero Curvature Systems II. The Noncomplete Ladder Case

The Yang-Mills type theories and their BRS cohomology are analysed within the zero curvature formalism.Comment: 14 pages, latex, no figures, latex improve

Hibridação intrespecífica em algodoeiro visando a seleção de cultivares com novas colorações de fibra.

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Avaliação de genótipos de girassol nos municípios de Mata Roma e Colinas, MA: ano agrícola 2009/2010.

No ano agrícola 2009/2010, foram conduzidos no estado do Maranhão, nos municípios de Mata Roma e Colinas, dois experimentos de avaliação de genótipos de girassol com objetivo de identificar materiais promissores para produção de grãos e óleo. O espaçamento utilizado foi de 0,80 m entre linhas com plantas distanciadas de 0,30 m. Usou-se adubação de fundação na dosagem de 200 kg da fórmula 05-30-15 ha-1 com micronutrientes (FTE BR-12) e cobertura aos 30 dias após semeadura, usando-se 30 kg de N ha-1 e 30 kg de K2O ha-1. Em Mata Roma,a produtividade de grãos variou de 1.468 kg ha-1 a 1.994 kg ha-1 obtida nos genótipos HLA 44-63 e AGROBEL 960, respectivamente. O teor de óleo variou de 37,5% no genótipo M 734 a 46,3% no HLA 05-62. Para rendimento de óleo verificou-se uma variação de 596 kg ha-1 no genótipo BRS Gira 29 a 895 kg ha-1 no AGROBEL 960. Em Colinas, a produtividade de grãos variou de 1.225 kg ha-1 a 1.654 kg ha-1 , respectivamente, nos genótipos EXP 1456 DM e BRS GIRA 27. Para teor de óleo houve uma variação de 41,1% (M 734) a 49,6% (HLA 887). Quanto ao rendimento de óleo constatou-se uma variação entre 561 kg ha-1 a 723 kg ha-1, respectivamente, nos genótipos M 735 e AROMO 10. EVALUATION OF GENOTYPES OF SUNFLOWER IN MATA ROMA AND COLINAS MARANHÃO STATE, BRAZIL, IN THE AGRICULTURAL YEAR 2009/2010. In the agricultural year 2009/2010, two experiments involving the evaluation of sunflower genotypes were carried out in Mata Roma and Colinas, estate of Maranhão, Brasil. These experiments aimed to identify good material to oil production. Spacing used between lines with plants was 0,80 m and, between plants, 0,30 m. Fertilizers were initially used in the dosage of 200 kg.ha-1 of the formula 05-30-15 with micronutrients (FTE BR-12) and coverage 30 days after sowing, using 30 kg.ha-1 of N and 30 kg.ha-1 of K2O. In Mata Roma, the grain productivity ranged from 1,468 kg.ha-1 to 1,994 kg.ha-1, obtained in genotypes HLA 44-63 and AGROBRL 960, respectively. The oil content ranged from 37.5% with genotype M 734 to 46.3% with genotype HLA 05-62. The oil efficiency ranged from 596 kg.ha-1, with genotype BRS Gira 29, to 895 kg.ha-1 , with genotypes V50070. In Bom Jesus, the grain productivity ranged from 999 kg ha-1 to 1,208 kg ha-1 in genotypes EXP 1456 DM and BRS GIRA 27, respectively. Oil content ranged from 41.1% (M 734) to 49.6% (HLA 887). Finally, oil efficiency ranged from 561 kg.ha-1 to 723 kg.ha-1, respectively, in genotypes M 735 and AROMO 10

Fast method for the determination of short-chain-length polyhydroxyalkanoates (scl-PHAs) in bacterial samples by In Vial-Thermolysis (IVT)

none8siA new method based on the GC–MS analysis of thermolysis products obtained by treating bacterial samples at a high temperature (above 270 C) has been developed. This method, here named “In-Vial- Thermolysis” (IVT), allowed for the simultaneous determination of short-chain-length polyhydrox- yalkanoates (scl-PHA) content and composition. The method was applied to both single strains and microbial mixed cultures (MMC) fed with different carbon sources. The IVT procedure provided similar analytical performances compared to previous Py-GC–MS and Py- GC-FID methods, suggesting a similar application for PHA quantitation in bacterial cells. Results from the IVT procedure and the traditional methanolysis method were compared; the correlation between the two datasets was fit for the purpose, giving a R2 of 0.975. In search of further simplification, the rationale of IVT was exploited for the development of a “field method” based on the titration of thermolyzed samples with sodium hydrogen carbonate to quantify PHA inside bacterial cells. The accuracy of the IVT method was fit for the purpose. These results lead to the possibility for the on-line measurement of PHA productivity. Moreover, they allow for the fast and inexpensive quantification/characterization of PHA for biotechnological process control, as well as investigation over various bacterial communities and/or feeding strategies.mixedF. Abbondanzi; G. Biscaro; G. Carvalho; L. Favaro; P. Lemos; M. Paglione; C. Samorì; C. TorriF. Abbondanzi; G. Biscaro; G. Carvalho; L. Favaro; P. Lemos; M. Paglione; C. Samorì; C. Torr

Girassol (Helianthus annuus L.) na região Meio-Norte do Brasil para produção de biodiesel.

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