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Dive into the research topics where Tafarel Victor Colodetti is active.

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Featured researches published by Tafarel Victor Colodetti.


Idesia (arica) | 2013

Selection of genotypes of Jatropha curcas L. for aluminium tolerance using the solution-paper method

Lima Deleon Martins; José Carlos Lopes; Bruno Galvêas Laviola; Tafarel Victor Colodetti; Wagner Nunes Rodrigues

espanolEl objetivo de la investigacion fue evaluar el efecto de la concentracion del aluminio en solucion que mejor diferencia la tolerancia al aluminio en genotipos de Jatropha, utilizando el metodo papel-solucion. Semillas de cuatro genotipos diferentes de Jatropha (CNPAE-248, CNPAE-301,CNPAE-308 y CNPAE-144) fueron germinadas en diferentes concentraciones de Al (0, 15, 40, 80 y 120 mg L�1) usando la tecnica de papel-solucion. Despues de 14 dias se midio el tamano de la raiz primaria en todos los tratamientos. Los resultados aqui presentados muestran que hay un comportamiento diferente de los genotipos para la tolerancia donde el tamano de la raiz primaria de estos disminuye exponencialmente en relacion con el aumento de los niveles de Al. El metodo de papel-solucion permite la seleccion de los genotipos de Jatropha en relacion con la tolerancia al aluminio; recomienda utilizar la concentracion de 40 mg L�1 de Al para discriminar diferencias en la tolerancia a este elemento EnglishThe study objective was to determinate the concentration of aluminum that allow to distinguish genotypes of Jatropha for tolerance to this element, using the solution-paper method. For this study, seeds of four genotypes of Jatropha, were germinated at different Al concentrations (0, 15, 40, 80 and 120 mg L�1). After 14 days, the root length was measured for all treatments. It was observed that there are different tolerance levels for the genotypes. The root length decreased exponentially with the increase of the Al concentration. The solution-paper method allows the selection of genotypes of Jatropha in relation to aluminum tolerance and the concentration of 40 mg L�1 of Al is recommended to discriminate the tolerance of genotypes to this element


Idesia (arica) | 2015

Aluminum stress in Crambe abyssinica Hochst

Tafarel Victor Colodetti; Wagner Nunes Rodrigues; Lima Deleon Martins; Marcelo Antonio Tomaz

espanolCrambe es una especie sensible al aluminio intercambiable que requiere suelos bien fertilizados y corregidos. El objetivo de este trabajo fue evaluar distintas concentraciones de aluminio en la germinacion y desarrollo de crambe. El experimento para germinacion se realizo con un diseno de bloques completos al azar con arreglo factorial de 5x2, con cuatro repeticiones. Las cinco concentraciones de Al3+ fueron 0, 15, 40, 80 y 120 mg dm-3 y las temperaturas de 20 y 30° C. El experimento para desarrollo de la planta se realizo con un diseno de bloques completos al azar con cinco concentraciones de Al3+ y cuatro repeticiones. Los parametros evaluados fueron porcentaje de germinacion, crecimiento de las plantulas y biomasa. Se analizo la tasa relativa de crecimiento, altura de planta, numero de hojas, area foliar total, area foliar especifica, materia seca en cada compartimento de la planta (raiz, tallo y hojas), razon de area foliar, razon de masa de raiz, tallo y hojas. El porcentaje de germinacion aumento a los 2 °C. La mayor concentracion de aluminio afecto el crecimiento, produccion de materia seca y desarrollo de hojas. Estos resultados sugieren que el cramble es sensible al aluminio intercambiable. EnglishCrambe is a sensitive specie to exchangeable aluminum, it require a well-fertilized and corrected soil. The objective of this study was to understand the impact of aluminum presence, in different concentrations, in the substrate on the germination and development of crambe. The experiment was carried out as a randomized complete block design with a 5x2 factorial arrangement in four replicates. The five concentrations of Al3+ were 0, 15, 40, 80 and 120 mg dm-3 Al3+ and two temperatures (20 and 30 °C), with four replications. The relative growth rate, plant height, leaf number, total leaf area, specific leaf area, dry matter in each plant compartment (root, stem and leaf), leaf area ratio, stem mass ratio and leaf mass ratio were evaluate. Germination was favored by 20 oC. The limitation on plant growth was greater as the concentration of aluminum increased, presenting losses in growth, as well of production of dry matter and leaf development, also causing changes in the patterns of biomass allocation between the plant compartments.


Australian Journal of Crop Science | 2014

Biometrical studies on characteristics of plagiotropic branches in Coffea arabica L. cultivated with high plant density

Wagner Nunes Rodrigues; Marcelo Antonio Tomaz; José Francisco Teixeira do Amaral; Maria Amélia Gava Ferrão; Tafarel Victor Colodetti; Márcio Antonio Apostólico; Leonardo Fardim Christo


Australian Journal of Crop Science | 2014

Differential tolerance between genotypes of conilon coffee (Coffea canephora) to low availability of nitrogen in the soil

Tafarel Victor Colodetti; Wagner Nunes Rodrigues; Lima Deleon Martins; Marcelo Antonio Tomaz


Scientia Plena | 2013

Alterações morfológicas em clones de cafeeiro conilon submetidos a níveis de fósforo

Lima Deleon Martins; Marcelo Antonio Tomaz; José Francisco Teixeira do Amaral; Leonardo Fardim Christo; Wagner Nunes Rodrigues; Tafarel Victor Colodetti; Sebastião Vinicius Batista Brinati


American Journal of Plant Sciences | 2014

Severity of Leaf Rust and Brown Eyespot in Genotypes of Coffea arabica L. Cultivated with High Plant Density

Wagner Nunes Rodrigues; Marcelo Antonio Tomaz; Márcio Antonio Apostólico; Tafarel Victor Colodetti; Lima Deleon Martins; Leonardo Fardim Christo; Sebastião Vinícius Batista Brinate; Waldir Cintra de Jesus; José Francisco Teixeira do Amaral


Plant Soil and Environment | 2016

A bitter cup: the estimation of spatial distribution of carbon balance in Coffea spp. plantations reveals increased carbon footprint in tropical regions.

Lima Deleon Martins; Fernando Coelho Eugenio; Wagner Nunes Rodrigues; Sebastião Vinícius Batista Brinate; Tafarel Victor Colodetti; Joaquim Amaral; W. C. Jesus Júnior; José C. Ramalho; A. R. dos Santos; Marcelo Antonio Tomaz


Australian Journal of Crop Science | 2015

Nutritional components of growth of Arabica coffee genotypes cultivated under different levels of phosphorus fertilization studied by path analysis

Wagner Nunes Rodrigues; Tafarel Victor Colodetti; Lima Deleon Martins; Sebastião Vinícius Batista Brinate; Marcelo Antonio Tomaz; José Francisco Teixeira do Amaral


Australian Journal of Crop Science | 2015

Simultaneous selection of physic nut genotypes (Jatropha curcas L.) for efficient absorption and utilization of N and P.

Lima Deleon Martins; Wagner Nunes Rodrigues; L. F. Christro; Tafarel Victor Colodetti; Sebastião Vinícius Batista Brinate; J. F. A. Teixeira; Marcelo Antonio Tomaz; Bruno Galvêas Laviola


American Journal of Plant Sciences | 2015

Applicability of the Method of Linear Dimensions to Estimate Leaf Area in Improved Genotypes of Coffea arabica and Coffea canephora

Sebastião Vinícius Batista Brinate; Wagner Nunes Rodrigues; Lima Deleon Martins; Tafarel Victor Colodetti; Marcelo Antonio Tomaz; José Francisco Teixeira do Amaral

Collaboration


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Wagner Nunes Rodrigues

Universidade Federal do Espírito Santo

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Marcelo Antonio Tomaz

Universidade Federal do Espírito Santo

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José Francisco Teixeira do Amaral

Universidade Federal do Espírito Santo

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Sebastião Vinícius Batista Brinate

Universidade Federal do Espírito Santo

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Leonardo Fardim Christo

Universidade Federal do Espírito Santo

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Bruno Galvêas Laviola

Empresa Brasileira de Pesquisa Agropecuária

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Waldir Cintra de Jesus Junior

Universidade Federal do Espírito Santo

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José Carlos Lopes

Universidade Federal do Espírito Santo

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