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| Registros recuperados: 12 | |
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| Penckowski, Luis Henrique; Fundação ABC; Zagonel, Jeferson; UEPG; Fernandes, Eliana Cuéllar; UEPG. |
| Visando avaliar os efeitos da aplicação do redutor de crescimento trinexapac-ethyl, em diferentes épocas e doses de nitrogênio, na cultivar de trigo Avante, realizou-se um experimento em Castro, Estado do Paraná, no delineamento em blocos ao acaso, em esquema fatorial 4 x 4, com quatro repetições. Os tratamentos constaram da aplicação de 100 g ha-1 de trinexapac-ethyl entre o primeiro e o segundo nó visível, o segundo e o terceiro nó visível, aplicação sequencial de metade da dose entre o primeiro e o segundo nó visível e metade entre o segundo e o terceiro nó visível e testemunha sem aplicação. As doses de nitrogênio em cobertura foram 90, 135, 180 e 225 kg ha-1. Foram avaliados estande, número de perfilhos, altura de plantas, diâmetro do colmo,... |
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Palavras-chave: 5.01.00.00-9 Agronomia Triticum aestivum L.; Acamamento; Giberelinas; Trinexapac-ethyl Triticum aestivum L.; Lodging; Gibberellin; Trinexapac-ethyl. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1048 |
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| Espindula,Marcelo Curitiba; Rocha,Valterley Soares; Souza,Leandro Torres de; Souza,Moacil Alves de; Campanharo,Marcela; Grossi,José Antônio Saraiva. |
| The objective in this study was to evaluate the effects of nitrogen rates in association with rates of the growth retardant trinexapac-ethyl on wheat. The experiment was conducted in Viçosa, MG and arranged in a 5×4 factorial, randomized block design, with four repetitions. A combination of five nitrogen rates (30, 60, 90, 120 and 150kg ha-1) with four rates of trinexapac-ethyl (0, 62.5, 125 and 187.5g ha-1) were tested. Trinexapac-ethyl promotes reduction of soot dry mass and grain yield at the lowest N rates, but at the highest N rates there is increase in these characteristics. The combination between N and trinexapac-ethyl rates that promotes higher shoot dry mass is 150kg ha-1 and 187g ha-1 but that promotes higher grain yield is 100kg ha-1 and 120g... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Plant height; Lodging; Grain yield. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200002 |
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| AMABILE, R. F.; MINELLA, E.; VALENTE, C. M. W.; SERRA, D. D. da. |
| RESUMO: O objetivo desse estudo foi verificar o efeito do regulador de crescimento trinexapac-etil em cevada cervejeira irrigada em áreas de Cerrado do Distrito Federal. O ensaio foi conduzido na área experimental da Embrapa Cerrados, em Planaltina, DF. Adotou-se o delineamento experimental de blocos ao acaso, com quatro repetições, utilizando as linhagens PFC 92126 e PFC 94014, ambas dísticas, a cultivar BRS 180 e a linhagem AF 9585, hexásticas. A aplicação de trinexapac-etil foi feita nas dosagens de 100 e 125 g/ha de ingrediente ativo, no estádio de primeiro nó visível, e 125 g/ha, no estádio de segundo nó visível. O regulador de crescimento trinexapac-etil apresenta efeito significativo na redução da altura e do acamamento da planta, sem afetar o teor... |
| Tipo: Folhetos |
Palavras-chave: Acamamento; Growth retardant; Cerrado; Cevada; Hordeum Vulgare; Regulador de Crescimento; Lodging; Malting barley. |
| Ano: 2004 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569207 |
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| Costa,Rodrigo Véras da; Simon,Jones; Cota,Luciano Viana; Silva,Dagma Dionísia da; Almeida,Rodrigo Estevam Munhoz de; Lanza,Fabrício Eustáquio; Lago,Bruno Cocco; Pereira,Alan Alves; Campos,Leonardo José Motta; Figueiredo,José Edson Fontes. |
| Abstract: The objective of this work was to assess yield losses due to stalk rot in corn (Zea mays) hybrids, as well as to identify the main pathogenic fungi responsible for the disease during the off-season, in the state of Tocantins, Brazil. Two field experiments were carried out, one with five hybrids, in 2015, and another with four, in 2016. Ears of healthy and stalk rot-infected plants were collected from each plot, at harvest. Ear size, grain and ear weights, and grain moisture content were measured. From each diseased plant, a stalk piece with two to three nodes was removed for pathogen identification and quantification. The most common pathogens were: Fusarium graminearum, Stenocarpella maydis, and Macrophomina phaseolina. All yield parameters were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium graminearum; Zea mays; Lodging; Stalk breakage; Stem disease. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102300 |
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| KOUTROUBAS,S.D.; DAMALAS,C.A.. |
| Paclobutrazol (PBZ), a well-known growth retardant of the triazole family, is mostly used for controlling plant size and growth, resulting in more desirable compact plants for floricultural purposes; however, limited experimental data are available for use of PBZ in field sunflower. The objective of this study was to evaluate the effect of repeated foliar applications of PBZ at rates of 50 + 50 g ha-1(double application) and 50 + 50 + 50 g ha-1 (triple application) on sunflower morphology and productivity. PBZ applications corresponded to growth stages of four to five, five to six, and six to eight true leaves of sunflower plants, respectively. The double foliar application of PBZ reduced sunflower plant height at maturity by 4.4% (or by 11.7 cm). The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Achene yield; Growth retardants; Height; Lodging. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000100129 |
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| Marolli,Anderson; Silva,José A. G. da; Romitti,Marcos V.; Mantai,Rubia D.; Hawerroth,Maraisa C.; Scremin,Osmar B.. |
| ABSTRACT The use of growth regulator in oats can reduce plant lodging with reflections in biomass and grain yield. The objective of the study was to determine the feasibility and efficiency of using Trinexapac-Ethyl regulator in the growth of white oat under different conditions of N-fertilizer and years favorable and unfavorable for cultivation. In this study, two experiments were conducted in the years 2011, 2012 and 2013, one for quantifying biomass production rate and the other for the determination of grain yield and lodging. The experimental design was randomized blocks with four replicates, in a 4 x 3 factorial scheme, for growth regulator doses (0, 200, 400 and 600 mL ha-1) and nitrogen doses (30, 90 and 150 kg ha-1), respectively. There is a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena sativa; Trinexapac-ethyl; Lodging; Nitrogen; Regression. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000300163 |
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| Krysczun,Dionatan K.; Silva,José A. G. da; Marolli,Anderson; Trautmann,Ana P. B.; Lucio,Alessandro D.; Carbonera,Roberto. |
| ABSTRACT Growth regulator in oat can reduce lodging with effects on yield indicators. The objective of the study is to define the optimum dose of growth regulator to reduce lodging in oats under different conditions of nitrogen (N) fertilization (reduced, high and very high) and the effects on yield indicators in the succession systems. In each succession system (soybean/oats and corn/oats), two experiments were conducted, one to quantify biomass yield and the other to estimate grain yield and lodging. In the four experiments, the design was randomized blocks with four replicates in 3 x 4 factorial scheme, for N-fertilizer doses (30, 90 and 150 kg ha-1) and growth regulator doses (0, 200, 400 and 600 mL ha-1), respectively. Growth regulator reduces lodging... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena sativa; Trinexapac-ethyl; Lodging; Nitrogen. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017001200828 |
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| Scremin,Osmar B.; Silva,José A. G. da; Mamann,Ângela T. W. de; Mantai,Rubia D.; Brezolin,Ana P.; Marolli,Anderson. |
| ABSTRACT The retainers of water in the soil can favor nitrogen (N) use efficiency in oat yield. The aim of the study was to determine if the conditions of use of the biopolymer hydrogel increase the fertilizer-N use efficiency in oat yield in succession systems of high and low residual-N release. In each succession system (soybean/oat, corn/oat), two experiments were conducted in 2014 and 2015, one to quantify biomass yield and the other to estimate grain yield and lodging. The design was randomized blocks with four replicates in a 4 x 4 factorial scheme for hydrogel doses (0, 30, 60 and 120 kg ha-1), added in the furrow with the seed, and N fertilizer doses (0, 30, 60 and 120 kg ha-1) applied in the fourth-expanded-leaf stage. The use of hydrogel... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena sativa L.; Biodegradable; C/N ratio; Lodging; Biomass. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000600379 |
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| Salomon,Marcus Vinicius; Camargo,Carlos Eduardo de Oliveira; Petinelli Jr.,Armando; Azevedo Filho,Joaquim Adelino de. |
| The anther culture technique has been used in breeding programs to obtain haploid plants from hybrid plants of F1 generation and to develop more efficiently wheat cultivars. To study the behavior of dihaploid wheat lines and two check cultivars, IAC-24 and IAC-289, experiments were carried out under sprinkler irrigation at Monte Alegre do Sul, SP, Brazil, in an Haplic Acrisol and at Tatuí, SP, Brazil, in a Rhodic Ferrasol, during the years 1999 and 2000. Genotypes were evaluated for grain yield, 100 grain weight, plant height, resistance to leaf rust (Puccinia recondita f. sp. tritici Rob. Desm.) and lodging. The genotypes were also evaluated under laboratory conditions for their Al+3 toxicity tolerance using nutrient solutions. The line 8, originated from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain yield; 100 grain weight; Plant height; Lodging; Tolerance to aluminum. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100007 |
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| Registros recuperados: 12 | |
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