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Belo Horizonte, Brazil

Paiva R.N.,Fundacao Procafe | De Carvalho C.H.S.,Pesquisador Embrapa Cafe | Mendes A.N.G.,Federal University of Lavras | De Almeida S.R.,MAPA | And 2 more authors.
Coffee Science | Year: 2010

This work assessed the field performance of compact growth coffee progenies developed by the MAPA/Procafé Foundation breeding program. An experiment was set up at the Procafé Foundation's Experimental Station in Varginha, Minas Gerais state, using 20 progenies, 16 of which were resistant to leaf rust. The evaluations began two and a half years after planting in four repetitions, totalizing 80 plots, each one constituted by four coffee plants. The following characteristics were analyzed: the six first annual harvests (2002 to 2007), husk/bean ratio, cup quality and screen analysis. In the 2006/2007 annual harvest, crop yield and moca percentage were assessed and screen classification was done, while in the 2007/2008 harvest, sensorial classification was carried out. The Sabiá Tardio cv 398 presented the highest yield among all the progenies. The progenies of the Catucaí group (Catucaí Amarelo 24/137 (C.O), Catucaí Vermelho 24/137, Catucaí Vermelho 20/15 cv 476 and Catucaí Vermelho 19/18 cv 221), Sarchimor group (Obatã IAC-1669-20, Tupi IAC 4093, Arara F4), and IBC-Palma-1 (3-12), Saíra cv 362, Topázio MG 1189 and Catuaí Amarelo IAC 74 presented good field performance and are recommended for the Varginha region. These progenies were also considered a good source for genetic breeding programs. The bean size and cup quality of all the progenies were rated good. Source


Martins L.P.,Federal University of Paraiba | Silva S.M.,Federal University of Paraiba | da Silva A.P.,Federal University of Campina Grande | da Cunha G.A.P.,Embrapa Mandioca e Fruticultura | And 3 more authors.
Revista Brasileira de Fruticultura | Year: 2012

The objective of this study was to evaluate the postharvest conservation of 'Perola' pineapple from conventional and integrated productions. Pineapples were harvested at commercial maturity point, from integrated (iP) and conventional (CP) production systems located at the municipality of Santa Rita-PB, Brazil. These fruits were stored under room conditions (23°C, 65 Rh), during 30 days. The experiment was carried out on a completely randomized design, in factorial 2×7 (production systems x evaluation periods), with four replications. Fruits from iP presented lower senescence rate and translucency, and better appearance. 'Pérola' pineapple from IP system presented 25 days of postharvest life, with a five-day increase compared with fruits from CP at storage under room conditions. Source


De Souza M.D.L.M.,EMBRAPA - Empresa Brasileira de Pesquisa Agropecuaria | De Souza M.D.L.M.,Federal University of Rio de Janeiro | Sulyok M.,University of Natural Resources and Life Sciences, Vienna | Freitas-Silva O.,EMBRAPA - Empresa Brasileira de Pesquisa Agropecuaria | And 7 more authors.
The Scientific World Journal | Year: 2013

The objective of this study was to quantitatively evaluate mycotoxins in samples of maize and poultry feed produced in Brazil. A multimycotoxin method based on HPLC-MS/MS was applied to investigate the occurrence of toxical fungal metabolites in 119 samples collected from poultry feed factory integrated poultry farms: maize grain (74), poultry feed (36), and feed factory residue (9). Twenty of 101 fungal metabolites investigated were detected and quantified in the samples: aflatoxins B1, B2, G1, and G2, fumonisins B1, B2, and B3, hydrolyzed fumonisin B1, zearalenone, agroclavine, chanoclavine, deoxynivalenol, and nivalenol, and enniatin A, A1, B, B1, beauvericin, kojic acid, and moniliformin. Most samples were contaminated with more than one mycotoxin. All samples were contaminated with fumonisins, with medians values of 1,840 g/kg, 239 g/kg, and 23,676 g/kg for maize, feed, and factory residue samples, respectively. Surprisingly, beauvericin was detected in more than 90% of samples. The median contaminations of aflatoxin and trichothecenes were low, near LOD values. The factory residue presented highest contamination levels for all mycotoxins. This is the first study dealing with agroclavine, chanoclavine, enniatin A, A1, B, B1, beauvericin, and kojic acid contamination of maize and poultry feeds from Brazil. © 2013 Maria de Lourdes Mendes de Souza et al. Source


de Lourdes Mendes de Souza M.,EMBRAPA - Empresa Brasileira de Pesquisa Agropecuaria | Sulyok M.,University of Natural Resources and Life Sciences, Vienna | Freitas-Silva O.,EMBRAPA - Empresa Brasileira de Pesquisa Agropecuaria | Costa S.S.,Federal University of Rio de Janeiro | And 6 more authors.
TheScientificWorldJournal | Year: 2013

The objective of this study was to quantitatively evaluate mycotoxins in samples of maize and poultry feed produced in Brazil. A multimycotoxin method based on HPLC-MS/MS was applied to investigate the occurrence of toxical fungal metabolites in 119 samples collected from poultry feed factory integrated poultry farms: maize grain (74), poultry feed (36), and feed factory residue (9). Twenty of 101 fungal metabolites investigated were detected and quantified in the samples: aflatoxins B1, B2, G1, and G2, fumonisins B1, B2, and B3, hydrolyzed fumonisin B1, zearalenone, agroclavine, chanoclavine, deoxynivalenol, and nivalenol, and enniatin A, A1, B, B1, beauvericin, kojic acid, and moniliformin. Most samples were contaminated with more than one mycotoxin. All samples were contaminated with fumonisins, with medians values of 1,840 μ g/kg, 239 μ g/kg, and 23,676 μ g/kg for maize, feed, and factory residue samples, respectively. Surprisingly, beauvericin was detected in more than 90% of samples. The median contaminations of aflatoxin and trichothecenes were low, near LOD values. The factory residue presented highest contamination levels for all mycotoxins. This is the first study dealing with agroclavine, chanoclavine, enniatin A, A1, B, B1, beauvericin, and kojic acid contamination of maize and poultry feeds from Brazil. Source


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Mapa | Date: 2016-04-05

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