Capacidade combinatória de linhagens e seleção de híbridos de sorgo sacarino

Sweet sorghum figure as an alternative feedstock for ethanol production. The establishment of this culture in Brazilian production chain depends on the development of more productive and adapted cultivars. The aim of this study was to evaluate the general combining ability (GCA) of sweet sorghum lines and specific combining ability (SCA) of hybrid combinations as the agronomic and technological traits, and additionally to identify promising hybrid combinations for evaluation in advanced trials. Five restorer lines (R) and four male-sterile lines (A) were used in a partial cross diallel yielding 20 hybrids. The parental lines, hybrids and one check were evaluated in experiments carried out in a rectangular lattice design 5x6 with three replicates in two locations. The following traits were measured: flowering time, plant height, green mass yield, dry matter percentage, dry matter yield, juice extraction, total soluble solids content, sucrose content, purity, reducing sugars content, fiber content, sugars reducing total content, total recoverable sugars, hydrous ethanol, tons of per hectare, and ethanol production. There were differences between locations and genotypes for the traits. There was a significant effect of the genotype by environment interaction for most characters, except juice extraction, purity and reducing sugars content. There were a significant effect of GCA and SCA for most traits, indicating that additive and non-additive effects affect the phenotypic expression. Considering the effects of the GCA, the A line 201402B022-A, and R lines BRS 511, CMSXS643, and CMSXS646 were considered promising for exploration as parents in breeding programs of sweet sorghum in order to increase the ethanol production and the quality of the feedstock.The hybrids 201402B010-A x BRS 511, 201402B010-A x BRS 508, 201402B010-A x CMSXS646, 201402B022-A x BRS 511, 201402B022-A x CMSXS643, 201402B022-A x CMSXS646, 201402B022-A x CMSXS647 were the most promising for ethanol yield.

Potencial antioxidante, mineral, inibitório de enzimas α-amilase e lipoxigenase e composição centesimal de espécies da família Apiaceae

Eryngium foetidum L., Eryngium cf. campestre and Coriandrum sativum L. are Apiaceae family vegetable appreciated due to its peculiar flavor and consumed mainly in the north and northeast of Brazil. The vegetables are rich in protein, vitamins, fiber, minerals, total phenolics and other essential bioactives for a balanced health. Nevertheless, many vegetables are falling into disuse by the population, instead of processed foods. The rescue consumption of these species is very important, aiming at their nutritional, therapeutic and antioxidant benefits. In this study, was quantified the levels of total phenolic, flavonoids and dihidroflavonoides by molecular absorption spectrophotometry in the ultraviolet. The total antioxidant capacity was also evaluated using five methodologies of in vitro assays: test Total Antioxidant Capacity (TAC), scavenging of DPPH and ABTS radical, Power Reducing and Power Chelating. It was also evaluated the power inhibitor of α-amylase and lipoxygenase extracts. All species showed significant levels of total phenolics, flavonoids and dihidroflavonoides in its composition. All treatments showed antioxidant activity of 50% except the sheets of E. cf. campestre, C. sativum and bracts of E. foetidum in DPPH and bracts of E. foetidum in ABTS. All treatments also exhibited 50% inhibition activity of the enzyme lipoxygenase.In α-amylase only the leaves of E. cf. campestre and C. sativum showed IC50. It was evaluate the phytochemical composition, aiming to meet the nutritional potential of Apiaceae family vegetables, called unconventional: Eryngium foetidum L., Eryngium cf. campestre; and conventional: Coriandrum sativum L. At the centesimal composition analysis Coriandrum sativum L. presented the highest levels of protein. The leaves of Eryngium foetidum L. exhibited higher values than other species in dietary fiber, while Eryngium cf. campestre detach with superior results in lipids. About the analyzed minerals, the leaves of Eryngium cf. campestre expressed results superior to the other in N, Ca, Mg, S and Cu. The amount of iron highlighted in sheets of E. foetidum, whereas P, K, Mn, Zn and B were most significant on leaves of C. sativum. It was concluded that the levels of total phenolic compounds found in these vegetables, characterize them for its high potential in the antioxidant and inhibition of lipoxygenase and α-amylase enzymes. Their protein and mineral levels classify them as species that can be used as a nutritional source in the preparation of other foods and may their regular consumption bring benefit to human health.

Estudo de pré-tratamentos de bagaço de cana para produção de etanol celulósico por hidrólise enzimática

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Caracterização de argilas e biomassa da cana-de-açúcar e utilização como adsorventes na remoção de BTX

Pós-graduação em Química - IBILCE

Estudos preliminares da preparação de fibras ópticas plásticas e híbridos orgânicos-inorgânicos luminescentes a partir de poli(metacrilato de metila) comercial

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

'ZN IND.7'SB IND. 2'O IND. 12' contendo Ce(III), Pr(III) ou Eu(III): investigação de suas propriedades estruturais e ópticas para potencial aplicação como cintilador

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo do sistema celulose bacteriana-poliuretano para a produção de novos compósitos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito da irradiação por microondas sobre as propriedades viscoelásticas de resinas para base de prótese e reembasamento

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação da alimentação de gestantes mediante aplicação do índice de qualidade da dieta adaptado

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da irrigação e adubação nitrogenada sobre a produção de matéria seca e qualidade da forragem de cultivares de Panicum maximum Jacq

Pós-graduação em Zootecnia - FEIS

Espaçamentos entrelinhas, densidades de semeadura e modos de aplicação de cloreto de mepiquat em algodoeiro cultivado na safrinha

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Propagação vegetativa de Tamarindus indica L

Pós-graduação em Agronomia - FEIS

Fontes e doses de nitrogênio na adubação do capim-mombaça em cerrado de baixa altitude

Pós-graduação em Agronomia - FEIS

Produção do tomateiro (Lycopersicon esculentum L.) cultivado em diferentes recipientes e níveis de cálcio na solução nutritiva

Pós-graduação em Agronomia - FEIS

Produtividade e composição bromatológica do capim-marandu a fontes e doses de nitrogênio

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)