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Search Results: 1 - 10 of 9422 matches for " Oscar Arath Grageda-Cabrera "
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Effectiveness of Selected Microbial Strains on the Growth of Sweet Sorghum  [PDF]
Arturo Díaz-Franco, Oscar Arath Grageda-Cabrera, Mónica Guadalupe Lozano-Contreras
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.68074
Abstract: Microbial inoculants are of great importance in agro-ecology and plants. However, the symbiotic effectiveness of strains may vary between species or within the same species. Aim of the study was to select experimental microbial strains of national origin, to know its impact on growth of sweet sorghum (Sorghum bicolor) in greenhouse and sterile soil. Five strains of arbuscular mycorrhizal fungi (AMF) and eight rhizobacteria (two of them mutagenized) were compared with non-inoculated plants as control. Variables measured were index of chlorophyll SPAD, plant height, stem diameter (from the middle section), fresh biomass from stem, leaf, panicle, radical, and stem sugars content (°Brix) of every two internodes. The results showed that in the majority of cases, microbial strains exceeded the values of variables compared with control plants. The highest values of chlorophyll (41.8 SPAD), stem diameter (13.5 mm) and total fresh biomass (144.3 g), were recorded with rhizobacterias BS410 (Herbaspirillum sp.), B2709 (Pseudomonas sp.) and B4M4 (Azospirillum sp.), respectively.
Root colonization by mycorrhizal INIFAPMR in barley seed treated with fungicide  [PDF]
Oscar A. Grageda-Cabrera, Sarahyt S. González-Figueroa, Mónica Guadalupe Lozano-Contreras, Arturo Díaz-Franco
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412100
Abstract:

The effect of barley seed treated with chlorothalonil fungicide on mycorrhizal root colonization was evaluated. The treatments were: 1) Seed with Mycorrhizal INIFAP?, one, two and three doses, and uninoculated seed; 2) Seed with and without fungicide. Monthly seed plantings were performed with different storage time, looking forward to assessing the colonization degree of the roots. As revealed by the results, the seed treated with chlorothalonil did not lower the root colonization by Mycorrhizal INIFAP?; the chlorothalonil treatment had a 32.63% average root colonization, whereas without chlorothalonil, it was 36.46%. When the seed was treated with root colonization by Mycorrhizal INIFAP?, this was lower in the treatment with one dose; no significant difference was revealed by the treatments with either double or triple doses. The colonization percentage was progressively decreased by seed storage. The root colonization by Mycorrhizal INIFAP?, throughout the inoculated seed storage time, remained constant and unchanged for the first six months, but then decreased in 50% within a 10-month period for both treated and not treated fungicide seed.

Response of rice cultivation to biofertilizers in Campeche, Mexico  [PDF]
Fermín Orona-Castro, Mónica Guadalupe Lozano-Contreras, Martín Tucuch-Cauich, Oscar A. Grageda-Cabrera, Juan Medina-Mendez, Arturo Díaz-Franco, Esaú Ruiz-Sánchez, Jesús Soto-Rocha
Agricultural Sciences (AS) , 2013, DOI: 10.4236/as.2013.412097
Abstract: The activity of various biofertilizers on rice production (Sabanero A95) was evaluated in Palizada, Campeche, Mexico, in the wet season of 2009 (year one) and 2011 (year two). On year one, arbuscular mycorrhiza INIFAP? (Rhizophagus intraradices), Azospirillum brasilense plus arbuscular micorrhiza Rhizophagus sp., and chemical fertilizer (92, -92, -60 kg·ha-1) were evaluated, while on year two marine algae extracts, a consortium of growth promoting bacteria (Pseudomonas spp.) and a control (not fertilized) were evaluated. The results showed that there were no significant differences on grain yield among treatments during the year one. The average grain yield was 2,800 kg·ha-1. As for the year two,
Efecto de la nutrición nítrica y sistemas de riego en el sabor de la fresa (Fragaria x ananassa Duch.)
Ojeda-Real, L. A.;Cárdenas-Navarro, R.;Lobit, P.;Grageda-Cabrera, O.;Valencia-Cantero, E.;Macías-Rodríguez, L.;
Revista Chapingo. Serie horticultura , 2008,
Abstract: the strawberry fruit flavor depends on its sugar, amino acid, and organic acid content. up to now, the effect of nitric nutrition and irrigation systems on these compounds is not well characterized. the objective of this work was to identify and to quantify the carbohydrates, amino acids, and organic acids content in strawberries cultivated at different levels of nitric fertilization, under two irrigation systems. nitrogen was applied as ca(no3)2 at concentrations of 0, 3, 9 and 20 mm in the irrigation water and drip and furrow irrigation systems were used. the carbohydrate and the amino acid content increased at 3 mm in drip system and 9 mm in the furrow system, compared with the unfertilized treatment, but did not increase further at 20 mm nitrogen. the organic acids content decreased as the nitrogen fertilization increased. therefore, an excessive use of fertilizer and irrigation water does not enhance the content of the compounds related with the sensorial quality of the strawberry.
San Antonio 05, variedad de garbanzo forrajero para la región Ciénega de Chapala, México
Soltero Díaz, Leonardo;Andrade Arias, Enrique;Grageda Cabrera, Oscar Arath;Pérez Valdez, Julio Joaquín;
Agricultura técnica en México , 2008,
Abstract: abstract 'san antonio 05' was developed at the bajio experimental station of inifap, mexico and evaluated during four years during the fall-winter cycle in six environments of three counties in the region cienega de chapala, jalisco (la barca, atotonilco el alto and jamay), where it was grown under residual moisture and irrigated production systems. tests for root-rot resistance were conducted at valle de culiacan experimental station in sinaloa and at atotonilco el alto, jalisco. results indicated that san antonio 05 is resistant to root-rots and its yield average in all conducted trials was 2.04 t ha-1 for grain and 2.31 for straw, being superior to the commercial check 'lerma' by 490 kg (31.6%)
El Método Clínico. Un enfoque desde la teoría del vínculo
Cabrera Rego,Julio Oscar;
Humanidades M??dicas , 2006,
Abstract: through enrique pichón riviere ′ s bond theory we intend to reseve a totalising vision about the flight of the clinical method from the main formation sceneries. a bad roll of the clinical method comes from a resistance to the deposit. this asseveration, realized after analysing how the object relationships are given in the internal field among doctor and patient, it allows us to understand why the clinical method is not applied. the rest of the explanation announced until this moment are excluded to the external field of the relationship
El Método Clínico. Un enfoque desde la teoría del vínculo The Clinical Method. A focus from the theory of the bond
Julio Oscar Cabrera Rego
Humanidades M??dicas , 2006,
Abstract: A través de la teoría del vínculo de Enrique Pichón Riviére nos proponemos rescatar una visión totalizadora acerca de la huída del método clínico de los principales escenarios de formación. Un mal ejercicio del método clínico parte de una resistencia al depósito. Esta aseveración, develada tras analizar cómo se dan las relaciones de objeto en el campo interno entre médico y paciente, nos permite comprender porqué no se aplica el método clínico; todas las demás explicaciones anunciadas hasta el momento, quedan marginadas al campo externo de relación Through Enrique Pichón Riviere ′ s bond theory we intend to reseve a totalising vision about the flight of the clinical method from the main formation sceneries. A bad roll of the clinical method comes from a resistance to the deposit. This asseveration, realized after analysing how the object relationships are given in the internal field among doctor and patient, it allows us to understand why the clinical method is not applied. The rest of the explanation announced until this moment are excluded to the external field of the relationship
Estado inflamatorio persistente en la reestenosis postvalvuloplastia mitral. Podemos modificarlo?. Persistent inflammatory state in mitral postvalvuloplasty: May it be modified?
Julio Oscar Cabrera-Rego
Revista Cubana de Cardiología y Cirugía Cardiovascular , 2010,
Abstract:
Echocardiographic measurement of epicardial fat thickness: In search for a consensus/Correlation of echocardiographic epicardial fat thickness with severity of coronary artery disease-an observational study
Julio Oscar Cabrera-Rego
Anadolu Kardiyoloji Dergisi , 2012,
Abstract:
Rese a de "Gerencia pública en la globalización" de Omar Guerrero
Juan Manuel Barrera Grageda
Economía, sociedad y territorio , 2004,
Abstract:
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