Search Results - "Heldwein, Arno Bernardo"

Sunflower root growth and distribution under varied water regimes in two edaphoclimatic conditions by Loose, Luis Henrique, Heldwein, Arno Bernardo, Silva, Jocélia Rosa da, Leonardi, Mateus, Bortoluzzi, Mateus Possebon, Lucas, Dionéia Daiane Pitol

“…Sunflower growth is adversely impacted by both excess and insufficient water. Research on root growth in this crop under water stress conditions remains…”
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Modification of canola cultivation conditions in a waterlogging-susceptible subtropical environment by Schaefer, Paulo Eugenio, Nied, Astor Henrique, Heldwein, Arno Bernardo, Dalmago, Genei Antonio, Pappis, Antonio Carlos, Gouvêa, Jorge Alberto de

“…Waterlogging directly interferes with the production capacity of agricultural crops in response to the morphophysiological changes caused to plants. Since the…”
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Numerical Climatic Analysis of Soybean Development in Sowing Dates in Humid Subtropical Climate by Bortoluzzi, Mateus Possebon, Heldwein, Arno Bernardo, Trentin, Roberto, Maldaner, Ivan Carlos, Silva, Jocélia Rosa da, Nied, Astor Henrique

“…Abstract The objective of this study was to determine the mean duration and the interannual variability of phenological subperiods and total soybean…”
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Diagrammatic scale for quantifying severity of brown leaf spot on Carya illinoinensis by POLETTO, TALES, MUNIZ, MARLOVE FÁTIMA B., LUCIO, ALESSANDRO DAL’COL, FANTINEL, VINÍCIUS S., HELDWEIN, ARNO BERNARDO, REINIGER, LIA REJANE S., BLUME, ELENA

“…Abstract Brown leaf spot disease, caused by the fungus Ragnhildiana diffusa, is responsible for losses in pecan orchards and quantification is essential in…”
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Water balance for determination of excess water in soybean cultivated in lowland soils by Bortoluzzi, Mateus Possebon, Gubiani, Paulo Ivonir, Heldwein, Arno Bernardo, Trentin, Roberto, Silva, Jocélia Rosa da, Nied, Astor Henrique, Zanon, Alencar Junior

“…The aim of this study was to derive a methodology for calculating a sequential water balance that accurately estimates the occurrence of excess water in…”
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Risk of water surplus in soybean crop on haplic planosol soil in the Central Depression of Rio Grande do Sul State, Brazil by Bortoluzzi, Mateus Possebon, Heldwein, Arno Bernardo, Trentin, Roberto, Lucas, Dionéia Daiane Pitol, Righi, Evandro Zanini, Leonardi, Mateus

“…The aim of this study was to identify soybean sowing dates on which there was low water surplus risk. The crop was raised on a Haplic Planosol soil in the…”
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Simulating the development of field grown potato ( Solanum tuberosum L.) by Streck, Nereu Augusto, de Paula, Fabiana Luiza Matielo, Bisognin, Dilson Antônio, Heldwein, Arno Bernardo, Dellai, Jacso

“…The simulation of developmental stages is an important part of many crop simulation models because photoassimilates partitioning to different organs varies…”
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Transpiration and leaf growth of potato clones in response to soil water deficit by Souza, André Trevisan de, Streck, Nereu Augusto, Heldwein, Arno Bernardo, Bisognin, Dilson Antonio, Winck, José Eduardo Minussi, Rocha, Thiago Schmitz Marques da, Zanon, Alencar Junior

“…Potato (Solanum tuberosum ssp. Tuberosum) crop is particularly susceptible to water deficit because of its small and shallow root system. The fraction of…”
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Estimation of leaf area index in the sunflower as a function of thermal time1 by Lucas, Dioneia Daiane Pitol, Heldwein, Arno Bernardo, Hinnah, Fernando Dill, Maldaner, Ivan Carlos, Loose, Luis Henrique

“…The aim of this study was to obtain a mathematical model for estimating the leaf area index (LAI) of a sunflower crop as a function of accumulated thermal…”
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Balance of longwave radiation employing the rate of solar radiation for Santa Maria, Rio Grande do Sul, Brazil1 by Righi, Evandro Zanini, Heldwein, Arno Bernardo, Maldaner, Ivan Carlos, Lucas, Dionéia Daiane Pittol, Stüker, Paulo Ervin

“…New coefficients were determined for the weighting term for cloudiness in the Brunt-Penman equation using the rate of solar radiation (RK) in place of the rate…”
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Relationships of photosynthetic photon flux density, air temperature and humidity with tomato leaf diffusive conductance and temperature by Righi, Evandro Zanini, Buriol, Galileo Adeli, Angelocci, Luiz Roberto, Heldwein, Arno Bernardo, Tazzo, Ivonete Fátima

“…The objective was to study the leaf temperature (LT) and leaf diffusive vapor conductance (gs) responses to temperature, humidity and incident flux density of…”
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EFEITO DA DESFOLHA NA ALTURA DE PLANTAS E PRODUTIVIDADE DE GRÃOS DE CANOLA (Brassica napus L.) by Dos Santos, Cadmo João Onofre Gregory, Da Rocha, Leidiana, Heldwein, Arno Bernardo, Durigon, Angelica, Nied, Astor Henrique, Milanese, Bruno Octavio

“…A redução da área foliar das plantas interfere no potencial fotossintético e ocasiona perdas significativas no potencial de rendimento de grãos das culturas…”
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Subperíodos fenológicos e ciclo da soja conforme grupos de maturidade e datas de semeadura by Trentin, Roberto, Heldwein, Arno Bernardo, Streck, Nereu Augusto, Trentin, Gustavo, Silva, Joel Cordeiro da

“…O objetivo deste trabalho foi estimar a duração dos subperíodos fenológicos e do ciclo de desenvolvimento da soja, de acordo com grupos de maturidade e datas…”
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Excedente hídrico em diferentes solos e épocas de semeadura do girassol no Rio Grande do Sul by Lucas, Dionéia Daiane Pitol, Heldwein, Arno Bernardo, Maldaner, Ivan Carlos, Trentin, Roberto, Hinnah, Fernando Dill, Silva, Jocélia Rosa da

“…O objetivo deste trabalho foi identificar datas de semeadura com menor ocorrência média de dias com excedente hídrico para a cultura do girassol, e determinar…”
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Épocas de semeadura do milho com menor risco de ocorrência de deficiência hídrica no município de Santa Maria, RS, Brasil by Nied, Astor Henrique, Heldwein, Arno Bernardo, Estefanel, Valduino, Silva, Joel Cordeiro da, Alberto, Cleber Maus

“…Neste trabalho, objetivou-se determinar as épocas de semeadura (ES) com menor e maior risco de deficiência hídrica para a cultura do milho no município de…”
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Variabilidade interdecadal na série secular de temperatura do ar em Santa Maria, RS by Streck, Nereu Augusto, Gabriel, Luana Fernandes, Buriol, Galileo Adeli, Heldwein, Arno Bernardo, Paula, Gizelli Moiano de

“…O objetivo deste trabalho foi verificar possíveis associações entre a variabilidade interdecadal das temperaturas mínima (Tmín) e máxima (Tmáx) diárias do ar e…”
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Influência do fenômeno El Niño na erosividade das chuvas na região de Santa Maria (RS) by Paula, Gizelli Moiano de, Streck, Nereu Augusto(UFSM Centro de Ciência Rural Departamento de Fitotecnia), Zanon, Alencar Junior, Eltz, Flávio Luiz Foletto(UFSM Departamento de Solos), Heldwein, Arno Bernardo(UFSM Departamento de Fitotecnia), Ferraz, Simone Erotildes Teliginski(UFSM Departamento de Física)

“…O fenômeno El Niño Oscilação Sul (ENOS) altera o tempo e o clima em vários locais, provocando alterações na circulação atmosférica que afetam os elementos…”
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Plastocrono e rendimento de feijão-de-vagem cultivado sob ambiente protegido e no ambiente externo em semeadura tardia no outono by Heldwein, Arno Bernardo, Streck, Nereu Augusto, Sturza, Vinícius Soares, Loose, Luis Henrique, Zanon, Alencar Junior, Toebe, Marcos, Souza, André Trevisan de, Peters, Marcelo Boschmann, Karlec, Fábio

“…O feijão-de-vagem (Phaseolus vulgaris L.), ou feijão-vagem, é uma hortaliça que, durante o outono no Estado do Rio Grande do Sul, pode ser favorecida pelo…”
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Associação da variabilidade da precipitação pluvial em Santa Maria com a Oscilação Decadal do Pacífico by Streck, Nereu Augusto(Universidade Federal de Santa Maria), Buriol, Galileo Adeli(Centro Universitário Franciscano), Heldwein, Arno Bernardo(Universidade Federal de Santa Maria), Gabriel, Luana Fernandes(Universidade Federal de Santa Maria), Paula, Gizelli Moiano de(Universidade Federal de Santa Maria)

“…O objetivo deste trabalho foi verificar a associação da variabilidade interdecadal da chuva em Santa Maria, RS, com a Oscilação Decadal do Pacífico. Parte da…”
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Effect of Alternaria and Septoria spot on sunflower yield by Brand, Silvane Isabel, Heldwein, Arno Bernardo, Radons, Sidinei Zwick, Maldaner, Ivan Carlos, Hinnah, Fernando Dill, Guse, Fabrício Ivan, da Silva, Jocélia Rosa

“…Leaf diseases affect crop yields. In sunflower crops, leaf spot severity can reach 100%, but the magnitude of the yield loss caused by the disease is not…”
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