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Artificial inoculation with Stenocarpella maydis in hybrids of maize Sci. Agrar.Paran. / SAP
Rizzardi, Diego Ary; Faria, Cacilda Marcia Duarte Rios; Faria, Marcos Ventura; Mendes, Marcelo Cruz; Rossi, Evandrei Santos; Figueiredo, Alex Sandro Torre; Possato Junior, Omar.
Evaluate the behavior of commercial corn hybrids, with or without artificial inoculation of Stenocarpella. Maydis fungus was aimed by this work. Experiments were conducted along the harvesting periods of 2010/11 and 2011/12, in Guarapuava - PR. Treatments were evaluated in a factorial scheme 4x2, being four hybrids of corn (DKB245, DKB390Y, P30F53H and P30R50H) with and without artificial inoculation with fungus S. maydis. Delineation was in randomized full blocks in a factorial scheme. The following characteristics were evaluated, amount of rancid grains, weight of a thousand grains and yield of grains.  Results evidenced hybrid DKB390Y with genotype more susceptible to fungus S. maydis independent of agricultural harvest and presence or not of artificial...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rancind grains; White ear rot; Zea mays L..
Ano: 2017 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14247
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Biomass association in specimens and interspecific hybrids of tomatoes Agronomy
Zeist, André Ricardo; Faria, Marcos Ventura; Resende, Juliano Tadeu Vilela; Gabriel, André; Nonato, Julio José; Santos, Matheus Hermann dos.
The objective of this study is to analyze the growth of wild species of tomato, of the cultivar Redenção and of the respective F1 hybrids of interspecific crossings. We evaluated six wild-type accessions (Solanum pimpinellifolium ‘AF 26970’, S. galapagense ‘LA-1401’, S. peruvianum ‘AF 19684’, S. habrochaites var. hirsutum ‘PI-127826’, S. habrochaites var. glabratum ‘PI-134417’, and S. pennellii ‘LA-716’) and the commercial cultivar Redenção (S. lycopersicum) together with their respective interspecific hybrids. In completely randomized blocks and plots subdivided by time (16, 28, 42, 56, 70, and 84 days after transplanting), we evaluated leaf area (LA), total dry matter (TDM), absolute growth rate (AGR), relative growth rate (RGR) and net assimilation rate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanum lycopersicum; Wild accessions; Growth analysis; Pre-breeding..
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42806
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Breeding potential of S4 maize lines in topcrosses for agronomic and forage traits Agronomy
Marcondes, Mariana Martins; Faria, Marcos Ventura; Mendes, Marcelo Cruz; Gabriel, Andre; Neiverth, Victor; Zocche, Jean Carlos.
This study aimed to evaluate the performance of 46 maize lines (S4) obtained from crosses between the commercial hybrids Penta x P30F53 in topcrosses with the commercial simple cross hybrid Dow8460 (tester) and checks (hybrids Penta, P30F53, Dow8460 and Status). The grain yield was evaluated in two environments in Guarapuava, Paraná State, and the effects of genotype, environment and genotype x environment interaction were significant. The grain yield of the topcross hybrids ranged from 8,416 to 13,428 kg ha-1. The agronomic characteristics of the forage and the bromatological characteristics of the silage were evaluated in environment 1. The green mass yield of the forage ranged from 48,767 to 87,714 kg ha-1 and the dry mass yield ranged from 14,749 to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia; Fitotecnia; Melhoramento Genético Vegetal Zea mays; Acid detergent fiber; Neutral detergent fiber; Silage; Plant breeding Melhoramento Genético de Milho.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28307
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Bromatological characteristics and ruminal digestibility of grain corn hybrids with different vitreousness in silage maturity Agronomy
Rossi, Evandrei Santos; Faria, Marcos Ventura; Mendes, Marcelo Cruz; Neumann, Mikael; Gabriel, André; Del Conte, Murilo Viotto.
The aim of this research was to evaluate vitreousness in commercial corn hybrids with flint and dent grains and to study the effect of this characteristic on agronomic behavior, nutritional value, and ruminal degradability of grains harvested in silage maturity. Twelve commercial corn hybrids were evaluated. They were divided in two groups (six with flint grains and six with dent grains). The experiments were conducted in two municipalities represented by Guarapuava and Laranjeiras do Sul, both in Paraná State. The harvest for the grain quality analysis was performed at ¾ of the milk line stage in the grain. The following characteristics were evaluated: grain yield, grain yield in silage maturity, vitreousness, ruminal digestibility of grain, neutral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agronomia; Produção Vegetal endosperm; Protein matrix; Degradability; Grain texture; Zea mays L. Vitreosidade em grãos de milho.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28703
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Effect of foliar fungicide and plant spacing on the expression of lipoxygenase enzyme and grain rot in maize hybrids Agronomy
Kluge, Elizandro Ricardo; Mendes, Marcelo Cruz; Faria, Marcos Ventura; Santos, Leandro Alvarenga; Santos, Heloisa Oliveira dos; Szeuczuk, Kathia.
This study was carried out with the objective of evaluating the effect of fungicide application on grain rot in commercial maize hybrids and the relation between grain rot and the expression of lipoxygenase enzyme in grain in conventional row spacing of 0.70 m and reduced row spacing of 0.45 m. Treatments were made in a 3 x 8 factorial scheme, using three forms of management with fungicide (Trifloxystrobin + Prothioconazole) and eight maize hybrids divided into two groups (tolerant and susceptible) with three repetitions, totaling 72 plots in each environment (conventional and reduced spacing) in the 2013/2014 crop. The following characteristics were evaluated: grain rot percentage and lipoxygenase enzyme expression (LOX) in the grain. The hybrid and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.03.01-6; LOX; Spindle rot; Chemical control; Reduced spacing; Zea mays Produção Vegetal.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/33003
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