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| Registros recuperados: 148.874 | |
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| Tofanelli,Mauro Brasil Dias; Ono,Elizabeth Orika; Rodrigues,João Domingos. |
| A propagação do pessegueiro no Brasil baseia-se na enxertia de cultivares-copa em porta-enxertos propagados por sementes, e uma alternativa de propagação para esta frutífera poderia ser a estaquia. O objetivo deste trabalho foi avaliar o potencial de enraizamento de estacas semilenhosas de cultivares de pessegueiro através da aplicação de 2,6-di-hidroxiacetofonona (2,6-DHAP) antes do tratamento com AIB (ácido indolbutírico). As estacas foram preparadas a partir de ramos coletados das cultivares Delicioso Precoce, Jóia 1 e Okinawa, em dezembro de 2001, para serem tratadas na base com 2,6-DHAP (0 e 300mg L-1), por 4h, em aeração e depois com AIB (200mg L-1 e 2500mg L-1). As estacas foram plantadas em bandejas de poliestireno expandido com vermiculita fina e... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Prunus persica; Propagação; Estaquia; Ácido fenólico; Auxina. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452004000200046 |
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| Graciani,F.S.; Ximenes,V.F.. |
| Apatone™, a combination of menadione (2-methyl-1,4-naphthoquinone, VK3) and ascorbic acid (vitamin C, VC) is a new strategy for cancer treatment. Part of its effect on tumor cells is related to the cellular pro-oxidative imbalance provoked by the generation of hydrogen peroxide (H2O2) through naphthoquinone redox cycling. In this study, we attempted to find new naphthoquinone derivatives that would increase the efficiency of H2O2 production, thereby potentially increasing its efficacy for cancer treatment. The presence of an electron-withdrawing group in the naphthoquinone moiety had a direct effect on the efficiency of H2O2 production. The compound 2-bromo-1,4-naphthoquinone (BrQ), in which the bromine atom substituted the methyl group in VK3, was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cancer Apatone™ Ascorbic acid Hydrogen peroxide 2-Bromo-1; 4-naphthoquinone. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000800003 |
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| Abbasi,Muhammad Athar; Aziz-ur-Rehman,; Qureshi,Muhammad Zahid; Khan,Farhan Mehmood; Khan,Khalid Mohmmed; Ashraf,Muhammad; Afzal,Iftikhar. |
| This manuscript reports the synthesis of a series of N-substituted derivatives of 2-phenitidine. First, the reaction of 2-phenitidine (1) with benzene sulfonyl chloride (2) yielded N-(2-ethoxyphenyl) benzenesulfonamide (3), which further on treatment with sodium hydride and alkyl halides (4a-g) furnished into new sulfonamides (5a-g). Second, the phenitidine reacted with benzoyl chloride (6) and acetyl chloride (8) to yield the reported N-benzoyl phenitidine (7) and N-acetyl phenitidine (9), respectively. These derivatives were characterized by infrared spectroscopy, ¹H-NMR, and EI-MS, and then screened against acetylcholinesterase, butylcholinesterase, and lipoxygenase enzyme, and were found to be potent inhibitors of butyrylcholinesterase alone. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2-Phenitidine/inhibitor activity; Sulfonamides; Acetamide; Benzamide; Butyrylcholinesterase. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000100014 |
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| AZEVEDO, C. L. L.; SILVA, J. A. A. da; CARVALHO, J. E. B. de. |
| A Grade de Agrotóxicos da PICitros é a lista contendo os produtos registrados no Brasil para o controle de pragas da cultura de citros, conforme a legislação vigente, tendo em conta a eficiência e seletividade dos mesmos, em relação a riscos de surgimento de resistência, persistência, toxicidade, resíduos em frutas e impactos ambientais (Marco Legal da PI, 2002). |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Citros; Normas técnicas.; Produção Integrada.. |
| Ano: 2010 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/881054 |
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| Gonzatto,Mateus Pereira; Böettcher,Gerson Nestor; Schneider,Leonardo André; Lopes,Ângelo Azeredo; Silveira Júnior,Jairo Camargo; Petry,Henrique Belmonte; Oliveira,Roberto Pedroso de; Schwarz,Sergio Francisco. |
| ABSTRACT: The 'Montenegrina' mandarin ( Citrus deliciosa Tenore) is widely cultivated in southern Brazil. This cultivar has a great tendency for alternate bearing, requiring thining of the fruit. However, the chemical thinners studied until now in this cultivar have not been successful. The objective of this research was to evaluate the effect of 3,5,6-trichloro-2-pyridinyloxyacetic acid (3,5,6-TPA) on the production and fruit quality of the 'Montenegrina' mandarin, in comparison with hand thinning and the options of chemical thinning previously studied. Hand thinning and no thinning were used as controls. Ethephon was applied in three doses: 200mg L-1, 300mg L-1 or 200mg L-1 + 3% urea; or 3,5,6-TPA, in four doses: 10, 20, 30 or 40mg L-1. Fruits of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus deliciosa Ten. 3; 5; 6-TPA synthetic auxin ethephon alternate bearing. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202078 |
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| Gomes,Urubatã E.; Oliveira,Diogo L. de; Berti,Luciana C.; Amaral,Olavo; Souza,Diogo O.; Wofchuk,Susana T.. |
| Scientific activity in Brazil has experienced an accelerated growth in the past decades, with an increase in productivity that greatly surpasses the international average. This growth has occurred mostly at the expense of centers of excellence in public universities, which account for the vast majority of the country's scientific output. The aim of this study was to evaluate the production of the Department of Biochemistry of a large public university in southern Brazil (Universidade Federal do Rio Grande do Sul), as well as to identify internal and external policies that have influenced this growing production profile. We have performed a historical analysis of the scientific output of this Department of Biochemistry, which accounts for a considerable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scientific productivity; Scientific growth profile; Biochemistry; UFRGS. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300030 |
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| Santos, Carlos Renato dos; Antonino, Antônio Celso Dantas; Heck, Richard John; Lucena, Leandro Ricardo Rodrigues de; Oliveira, Alex Cristóvão Holanda de; Silva, Antonio Samuel Alves da; Stosic, Borko; Menezes, Romulo Simões Cezar. |
| In this work, lacunarity analysis is performed on soil pores segmented by the pure voxel extraction method from soil tomography images. The conversion of forest to sugarcane plantation was found to result in higher sugarcane soil pore lacunarity than that of native forest soil, while the porosity was found to be lower. More precisely, this study shows that native forest has more porous soil with a more uniform spatial distribution of pores, while sugarcane soil has lower porosity and a more heterogeneous pore distribution. Moreover, validation through multivariate statistics demonstrates that lacunarity can be considered a relevant index of clustering and can explain the variability among soils under different land use systems. While porosity by itself... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lacunarity; Soil porosity; Impact of land use change. lacunarity soil porosity impact of land use change. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42491 |
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| Registros recuperados: 148.874 | |
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