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| Registros recuperados: 127 | |
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| ABREU, A. de F. B.; RAMALHO, M. A. P.; CARNEIRO, J. E. de S.; MELO, L. C.; PEREIRA, H. S.; SOUZA, T. L. P. O. de; PAULA JÚNIOR, T. J. de; SOUZA, E. A. de; PEREIRA FILHO, I. A.; MARTINS, M.; DEL GIÚDICE, M. P.; VIEIRA, R. F.. |
| A cultivar BRSMG Uai foi obtida pelo método da hibridação em um programa de seleção recorrente visando a obtenção de progênies com grãos tipo carioca, com arquitetura ereta de planta e boa produtividade. |
| Tipo: Comunicado Técnico (INFOTECA-E) |
Palavras-chave: Planta de arquitetura ereta; BRSMG Uai; Phaseolus vulgaris; Feijão; Melhoramento Genético Vegetal; Variedade; Grain yield; Breeding; Varieties; Plant architecture. |
| Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1103800 |
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| Silva,Cristiano Lemes da; Benin,Giovani; Bornhofen,Elesandro; Todeschini,Matheus Henrique; Dallo,Samuel Cristian; Sassi,Luiz Henrique Scarparo. |
| Nitrogen (N) management in wheat crop is one of the most studied agricultural practices in Brazil; however, there are few reports on its use efficiency. The objective of this study was to characterize 18 Brazilian wheat cultivars, which are representative and have been recently released to cultivation, for nitrogen use efficiency (NUE). The experiments were carried out in Pato Branco, Paraná, and Coxilha, Rio Grande do Sul, during the 2011 crop season. It was used a randomized block design with three replications, in factorial scheme (2 environments × 18 cultivars). Genetic variability was observed for nitrogen utilization efficiency by grains (NUtEg=47.6 to 81.1 kg kg-1) and nitrogen harvest index (NHI=71.3 to 84.6%) with significant effects relating to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L; Grain yield; Nitrogen harvest index; SDS sedimentation; Grain protein concentration. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200001 |
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| Aguiar,Aurélio Mendes; Carlini-Garcia,Luciana Aparecida; Silva,Adelmo Resende da; Santos,Mateus Figueiredo; Garcia,Antonio Augusto Franco; Souza Jr.,Cláudio Lopes de. |
| The utilization of diallel crosses for identification of superior combinations is a common practice in maize (Zea mays L.) breeding programs. This methodology allows the estimation of the combining ability of genotypes being evaluated. In this work, five inbred lines were evaluated as to their general (GCA) and specific (SCA) combining abilities, by using a complete diallel scheme. The single-crosses produced between these inbred lines were evaluated in seven environments, along with two checks, by using a randomized complete block design. Traits analized were: grain yield, plant height, ear height, ear placement, and prolificacy. A diallel analysis was carried out, following an adaptation of Griffing's method IV, in addition to hybrid stability and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diallel crosses; Genotype vs. environment interaction; Grain yield; Adaptability. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100013 |
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| Pereira,Helton Santos; Melo,Leonardo Cunha; Faria,Luís Cláudio de; Ferreira,Enderson Petrônio de Brito; Mercante,Fábio Martins; Wendland,Adriane; Souza,Thiago Lívio Pessoa Oliveira de. |
| ABSTRACT: More efficient strains of Rhizobium have been selected for use in common bean. However, little effort was made with lines selection. The main goals of this research were to verify the presence of interaction involving common bean elite lines utilizing Nitrogen fertilization and Rhizobium inoculation for grain yield and to identify lines with superior yields utilizing biological nitrogen fixation. Eight field trials were conducted at four location-years in Brazilian savanna, using randomized complete blocks design with three replications. Each trial was composed of 17 carioca elite lines. Every two tests in each location were planted side by side, one with mineral nitrogen fertilization (90kg) and the other one with inoculation with Rhizobium... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Biological nitrogen fixation; Grain yield; Genotype by environment interaction. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001202168 |
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| Vogt,Gilcimar Adriano; Balbinot Junior,Alvadi Antonio; Trezzi,Michelangelo Muzell; Backes,Rogério Luiz; Nicknich,Waldir. |
| The morpho-physiologic characteristics of common bean plants can affect their competitive ability with weeds. The objective of this work was to evaluate the competitive ability of black bean genotypes with weeds. An experiment was carried out in the 2010/11 cropping season in Papanduva, SC, southern Brazil, in order to verify the variability of some plant characteristics among genotypes of common bean. The randomized block design was used, with four replications. Seven cultivars underwent the treatments: BRS Campeiro, CHP 01-238, CHP 01-239, Diamante Negro, BRS Supremo, BRS Valente, IPR Uirapuru, FTS Soberano, IPR Graúna, IPR Tiziu e IAC Diplomata. At 6, 14, 18, 25 and 32 days after emergence (DAE) were evaluated plant height, ground cover by common bean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris; Weed interference; Grain yield. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000500002 |
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| Trezzi,M.M.; Balbinot Jr.,A.A.; Benin,G.; Debastiani,F.; Patel,F.; Miotto Jr.,E.. |
| The existence of large areas infested with populations of Conyza spp. resistant to glyphosate in Brazil demands appropriate and integrated management strategies. This experiment aimed to identify soybean cultivars with greater competitive ability with horseweed plants and to determine plant characteristics associated with this ability. The experiment was arranged in a randomized complete block design with split plots. Seven soybean cultivars (CD 225 RR, BRS 232, CD 226 RR, NK 7054 RR, BMX Apollo RR, BRS 245 RR and BRS 255 RR) were allocated in the plots, and two interference situations (absence and 13.3 plants of Conyza m-2, transplanted seven days before soybean planting) in the subplots. The average yield loss due to competition with horseweed was 25%.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conyza spp.; Interference; Competition; Grain yield. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300006 |
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| Moraes,Moacir Tuzzin de; Levien,Renato; Trein,Carlos Ricardo; Bonetti,João de Andrade; Debiasi,Henrique. |
| Abstract: The objective of this work was to determine whether compaction by tractor traffic in areas managed under controlled traffic can be limiting to corn crop, under different tillage systems, in a Typic Paleudult of medium texture. Two experiments were carried out, one in the field over two crop seasons and another in a greenhouse. The treatments consisted of minimum tillage with chiselling; no-tillage subjected to one, three, or six passes of a tractor weighing 3.8 Mg; and an area without traffic. Evaluations were performed for soil physico-hydraulic parameters (soil bulk density, penetration resistance, and water retention curve), root and shoot growth, and grain yield. The agricultural traffic increased bulk density, soil penetration resistance,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Grain yield; No-tillage; Root growth; Soil compaction. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400464 |
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| Silva,P.S.L; Silva,P.I.B; Silva,K.M.B; Oliveira,V.R; Pontes Filho,F.S.T. |
| Although labor is intensive, evaluating the growth of crops may allow a better understanding of crop performance, including the reasons why certain cultivars can compete better with weeds. This study aims at evaluating growth, green ear yield, and grain yield in corn when in competition with weeds. Cultivars AG 1051 and BRS 106 were grown with (two hoeings, at 20 and 40 days after sowing) or without weed control. In order to evaluate crop growth, six collections of the above-ground part and the root system of corn were performed, every 15 days, with the first collection made 30 days after sowing. A randomized complete block design was adopted, with split-split plots (weed control in plots, cultivars in subplots, and collections in sub-subplots) and ten... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Green corn; Grain yield; Dry matter. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582011000400009 |
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| MACHADO, J. R. de A.; GUIMARAES, L. J. M.; GUIMARAES, P. E. de O.; TRINDADE, R. dos S.. |
| O trabalho foi desenvolvido na área experimental da Embrapa Trigo, na safra 2017/2018, na forma de Unidades de Observação (UOs), com o objetivo de avaliar híbridos e variedades experimentais e comerciais em dois espaçamentos entre linhas e duas épocas de semeadura. As UOs foram implantadas em espaçamento de 80 cm e 45 cm, em duas épocas de semeadura, sendo a primeira em 19/09/2017 (semeadura do cedo) e a segunda em 24/10/2017 (semeadura do tarde) com colheita realizada, respectivamente, em 28/03/2018 e 25/04/2018. Foram considerados neste trabalho dados de produtividade de grãos (Kg ha-1). Por se tratarem de parcelas maiores, não houve repetição por tratamento, pois a intenção foi simular ao cultivo em área de agricultor. Observou-se que os híbridos... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Zea Mays; Rendimento; Grão; Produtividade; Crops; Grain yield. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124593 |
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| Vieira, Rafael Augusto; UEM; Rodovalho, Marcos de Araújo; UEM; Scapim, Carlos Alberto; UEM; Tessmann, Dauri José; UEM; Amaral Júnior, Antônio Teixeira do; UENF; Bignotto, Lucas Souto; UEM. |
| In maize, variations on agronomic performance in distinct environments are common and more evident for one-way hybrids. The objective of this work was to evaluate the performance of new one-way popcorn hybrids developed by the Breeding Program of the State University of Maringá, in northwestern Paraná. The characteristics evaluated were: grain yield, popping expansion, plant height, ear height and the intensity of Southern rust (Puccinia polysora), Northern leaf blight (Exserohilum turcicum), and phaeosphaeria leaf spot (Phaeosphaeria maydis/Pantoea ananas). The assay was carried out into randomized block design with three replications in Maringá, state of Paraná, Brazil, during the 2006/2007 cropping season. The treatments were 27 simple popcorn hybrids... |
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Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Zea mays L.; Rendimento de grãos; Capacidade de expansão; Doenças foliares Zea mays L.; Grain yield; Popping expansion; Leaf diseases. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4142 |
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| Suzukawa,Andréia Kazumi; Pereira,Carolina Bertuzzi; Garcia,Mayara Mariana; Contreras-Soto,Rodrigo Iván; Zeffa,Douglas Mariani; Coan,Marlon Mathias Dacal; Scapim,Carlos Alberto. |
| ABSTRACT The number of sweet corn cultivars adapted to the climatic conditions and with agronomic traits recommended to the Brazilian market is still limited. Thus, the aim was to investigate the general and specific combining ability (GCA and SCA, respectively) in relation to the grain yield (GY) and total soluble solid (TSS) contents of seven lines of sweet corn (su1) and eight lines of supersweet corn (sh2) by diallel crosses. For TSS, the inbred lines SC6 and SC7 of sweet corn, and SSC7 and SSC8 of supersweet corn showed higher GCA effect. For GY, the inbred lines SC1 and SC2 of sweet corn and SSC4 and SSC6 of supersweet corn showed higher GCA effect. For TSS in sweet corn, the hybrids '4 × 6' and '1 × 7' showed the superior Ŝij estimates across all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L; Saccharata; General and specific combining ability; Grain yield; Total soluble solids. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400607 |
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| Vicensi,Marcelo; Müller,Marcelo Marques Lopes; Kawakami,Jackson; Nascimento,Ronaldo do; Michalovicz,Leandro; Lopes,Christian. |
| ABSTRACT Applications of phosphogypsum (PG) provide nutrients to the soil and reduce Al3+ activity, favoring soil fertility and root growth, but allow Mg2+ mobilization through the soil profile, resulting in variations in the PG rate required to achieve the optimum crop yield. This study evaluated the effect of application rates and splitting of PG on soil fertility of a Typic Hapludox, as well as the influence on annual crops under no-tillage. Using a (4 × 3) + 1 factorial structure, the treatments consisted of four PG rates (3, 6, 9, and 12 Mg ha-1) and three split applications (P1 = 100 % in 2009; P2 = 50+50 % in 2009 and 2010; P3 = 33+33+33 % in 2009, 2010 and 2011), plus a control without PG. The soil was sampled six months after the last PG... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calcium sulfate; Calcium/magnesium ratio; Grain yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100515 |
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| Galindo,Fernando S.; Teixeira Filho,Marcelo C. M.; Buzetti,Salatiér; Boleta,Eduardo H. M.; Rodrigues,Willian L.; Rosa,Alexandre R. M.. |
| ABSTRACT Boron is one of the most limiting micronutrients in the grain production system in Brazil. Thus, the objective of this study was to evaluate the effects of the application forms and doses of boron on the concentration of this nutrient in the leaves, straw, and grains of wheat, as well as the production components and grain yield. The residual effect of boron in the soil was also evaluated. An experiment was conducted in a no-tillage system in Oxisol with clay texture in Selvíria, Mato Grosso do Sul. The experimental design was a randomized block design with four replicates arranged in a 4 x 3 factorial scheme. Four doses of boron (0, 1, 2, and 4 kg ha-1) were applied with a boric acid source (B = 17%) and three application forms: a) during the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Borated fertilization; Boron time application; Boron concentration in aerial part; Grain yield. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900597 |
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| Garcia,Nayara F. S.; Arf,Orivaldo; Portugal,José R.; Peres,Amanda R.; Rodrigues,Mayara; Penteado,Mariele de S.. |
| ABSTRACT The study was carried out in Selvíria-MS, in the 2011/12 and 2012/13 agricultural years, aiming to evaluate the efficiency of Azospirillum brasilense in nitrogen fixation in upland rice, as a function of doses and application methods of the inoculant containing this diazotrophic bacterium. The experimental design was randomized blocks, arranged in a 4 x 4 factorial scheme, with 4 doses of inoculant (control without inoculation, 100, 200 and 300 mL of the commercial product ha-1) and 4 application methods (seed inoculation, application in the sowing furrow, soil spraying after sowing, and foliar spraying at the beginning of plant tillering), with 4 replicates. During the experiment, the agronomic characteristics, production components and yield of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; Diazotrophic; Cv. IAC 202; Nitrogen fixation; Grain yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001100990 |
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| Silva,P.S.L.; Oliveira,O.F.; Silva,P.I.B.; Silva,K.M.B.; Braga,J.D.. |
| Herbicides have simplified weed control, but the use of herbicides, besides being costly, resulted in the selection of herbicide-resistant weed biotypes and has become an environmental contamination factor. Herbicide use reduction is one of the goals of modern agriculture, with several alternatives being investigated, including intercropping. The objective of this study was to evaluate the effects of cowpea and corn cultivar intercropping on weed control and corn green-ear (immature ears with 80% humidity grains) and grain yield. A completely randomized block design with split-plots and four replications was used. AG 1051, AG 2060 and PL 6880 corn cultivars (assigned to plots) were submitted to the four treatments: no weeding, two hoe-weeding (22 and 41... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Vigna unguiculata; Cultivars; Green-ear yield; Grain yield. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000300009 |
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| Registros recuperados: 127 | |
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