677 resultados para sugar cane spirit


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The use of selective herbicides to control weeds has caused different responses in cultivars of sugar cane, and some products affect physiological characteristics and reduce the photosynthetic activity. This study aimed to evaluate the physiological traits in cultivars of sugar cane under the effect of applying post-emergence herbicides. The test was developed in Jau, SP. The experimental design was randomized blocks in factorial scheme 5 x 4 (cultivar x herbicide) with four replications. SP81-3250, RB855156, RB855453, RB867515, IACSP95-5000 were grown in this studied. Herbicides clomazone (1200 g i.a.ha-1); commercial mixture of clomazone + ametryn (1000 + 1500 g i.a.ha-1) and ametryn (3000 g i.a.ha-1) and a control were applied at 30 days after planting. Cultivars IACSP95-5000 and RB867515 were less affected physiologically and can be considered selective to these herbicides. The application of clomazone and ametryn affected negatively the traits maximum photochemical efficiency of photosystem II (Fv/Fm), SPAD index and photosynthetic pigments, but the mixture of these herbicides caused higher reductions, indicating to be the more aggressive to the cultivars.

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The stagnant effective thermal conductivities (K0) of sugar cane bagasse (SCB), wheat bran (WB), orange pulp and peel (OPP) and their combination (weight proportion 1:2:2 SCB/OPP/WB) were obtained using the line heat source method. These solid materials were applied to pectinase production via solid-state fermentation. The moisture content ranged from 4 to 80% (w.b.). A conduction mechanism through the porous media was observed, along with conduction through a liquid film and contact thermal resistance between the samples and the probe. K0 was low for intermediate moisture contents and approached the molecular conductivity of water for high moisture contents. © 2013 Copyright Taylor and Francis Group, LLC.

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Pós-graduação em Microbiologia Agropecuária - FCAV

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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Pós-graduação em Agronomia (Agricultura) - FCA

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Ciências Cartográficas - FCT