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| Registros recuperados: 31 | |
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| Brondani, Gilvano Ebling; Escola Superior de Agricultura "Luiz de Queiroz"/Universidade de São Paulo (ESALQ/USP); Grossi, Fernando; Universidade Federal do Paraná (UFPR); Wendling, Ivar; Embrapa Florestas-CNPF; Dutra, Leonardo Ferreira; Embrapa Clima Temperado-CPACT; Araujo, Marla Alessandra de; Universidade Federal do Paraná (UFPR). |
| O Eucalyptus apresenta grande importância no setor florestal e muitos avanços na área do melhoramento foram conquistados com o advento da biotecnologia. Contudo, alguns genótipos promissores ainda não possuem protocolos de multiplicação com técnicas de clonagem, como a miniestaquia. Objetivou-se avaliar concentrações de IBA na sobrevivência, enraizamento e vigor vegetativo de miniestacas de E. benthamii x E. dunnii, com a determinação da dose de máxima eficiência técnica. Minicepas dos clones H12, H19 e H20 foram manejadas em minijardim clonal em sistema semi-hidropônico. Para o enraizamento, mergulhou-se a porção basal da miniestaca em soluções hidroalcoólicas, cujas concentrações foram: 0, 2.000, 4.000, 6.000 e 8.000 mg Lde IBA. O experimento foi... |
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Palavras-chave: 5.01.03.04-0 Clonagem; Propagação vegetativa; Ácido indolilbutírico; Regulador vegetal; Multiplicação de genótipos superiores Produção de Mudas Cloning; Vegetative propagation; Indolebutyric acid; Growth regulator; Superior genotype multiplication. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4879 |
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| Ávila,Marizangela Rizzatti; Braccini,Alessandro de Lucca e; Scapim,Carlos Alberto; Albrecht,Leandro Paiola; Tonin,Telmo Antônio; Stülp,Marcibela. |
| The application of vegetal bioregulators has shown promising results, mainly in cultures that have already reached a high level of technology. Based on this context an experiment was carried out with the objective of evaluating agronomic traits of plants, such as yield and quality of seeds, produced by applying bioregulators to a soybean crop. For this purpose, the following treatments were carried out: before sowing - seed treatment (25, 50 and 75 mL for 100 kg-1 seeds); during sowing time - spraying on the sowing lines (pulverization onto the sowing lines) (50, 100 and 150 mL ha-1); between stages V5 and V6 (25, 50 and 75 mL ha-1); and the control - no treatment. Emergence speed, final seedling emergence, number of pods and seeds per plant, average... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulator; Yield; Vigor; Germination. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600006 |
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| Catunda, Paulo Henrique Aragão; UENF; Marinho, Cláudia Sales; UENF; Gomes, Mara Menezes de Assis; IST; Carvalho, Almy Junior Cordeiro de; UENF. |
| O objetivo deste trabalho foi avaliar o efeito da aplicação de diferentes concentrações de um análogo de brassinosteróide (BIOBRAS – 16) e de dois substratos sobre o crescimento de mudas micropropagadas do abacaxizeiro ‘Imperial’. O experimento foi conduzido em DBC, em esquema fatorial 2 x 5 x 4, no qual foram avaliadas cinco concentrações do BIOBRAS - 16 (0; 0,1; 0,3; 0,5 e 1 mg L-1), dois tipos de substratos e quatro épocas de amostragem (60, 90, 120 e 150 dias após transplantio). Os substratos utilizados foram o Plantmax® e outro substrato obtido pela compostagem de uma mistura entre o bagaço-de-cana e torta de filtro (BT). As plântulas foram transplantadas para tubetes cônicos em casa-de-vegetação equipada com nebulizadores intermitentes. As plantas... |
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Palavras-chave: 5.01.00.00-9 Agronomia Ananas comosus; BIOBRAS-16; Bagaço-de-cana; Torta de filtro; Plantmax®; Regulador de crescimento 5.01.03.00-8 Fitotecnia Ananas comosus; BIOBRAS-16; Sugar-cane bagasse; Filter cake; Plantmax®; Growth regulator. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3512 |
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| Souza, Myrne Jamilly Lima de; UESB; Viana, Anselmo Eloy Silveira; UESB; Matsumoto, Sylvana Naomi; UESB; Vasconcelos, Ramon Correia de; UESB; Sediyama, Tocio; UFV; Morais, Otoniel Magalhães; UESB. |
| O experimento foi conduzido na Universidade Estadual do Sudoeste da Bahia, em Vitória da Conquista, Estado da Bahia, no período de novembro de 2005 a maio de 2007, com o objetivo de avaliar o manejo da irrigação, épocas de colheita e efeito do cloreto de mepiquat sobre características agronômicas da mandioca. Utilizou-se o delineamento em blocos casualizados com três repetições e 16 tratamentos em parcelas subsubdivididas, formados pelas combinações entre manejo da irrigação (ausência de irrigação, irrigação durante todo o ciclo, irrigação de novembro a abril e irrigação de novembro a abril, com retomada de novembro a abril do ano seguinte), épocas de colheita (aos nove e aos 18 meses) e cloreto de mepiquat (com e sem aplicação). A colheita aos 18 meses... |
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Palavras-chave: 5.01.00.00-9 Agronomia amido em raízes; Produtividade de raízes tuberosas; Regulador de crescimento; Rendimento de farinha 5.01.03.00-8 root starch; Productivity of tuberous roots; Growth regulator; Flour yield. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/720 |
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| Maia,Emanuel; Siqueira,Dalmo L.; Salomão,luiz C.C.; Peternelli,Luiz A.; Ventrella,Marília C.; Cavatte,Rithiely P.Q.. |
| Under some cultivation conditions, excessive growth of the pseudostem of banana plants can be considered a limiting factor, and thus, the use of growth regulators can constitute a valid alternative. This work aimed to evaluate the action of paclobutrazol on the growth of the pseudostem of banana plants and other characteristics of their development. An experiment was installed with five paclobutrazol doses (0; 0.5; 1.0; 1.5; and 2.0 g of a.i. plant-1) combined with two banana plant cultivars ('Prata Anã' and 'FHIA-01'). Paclobutrazol did not affect the number of days from planting to flowering, total leaf area and leaf emission rate. However, it increased leaf permanence on the plants and sucker number, reduced the foliar area of the leaves emitted after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Foliar area; Growth analysis; Growth regulator; Musa spp.; Suckers. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200011 |
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| Paula, Luciane Arantes de; UFPel; Corrêa, Luiz de Souza; UNESP; Boliani, Aparecida Conceição; UNESP; Santos, Pedro César dos; UNESP. |
| Este trabalho teve como objetivo verificar o efeito de seis concentrações de ácido indolbutírico (IBA) no enraizamento de estacas herbáceas de figueira (Ficus carica L.) sob nebulização intermitente, em três épocas diferentes. Os ensaios foram instalados em maio/2004, setembro/2004 e janeiro/2005, e, em cada época, o delineamento experimental utilizado foi o inteiramente casualizado, com seis concentrações de IBA (0, 500, 1.000, 1.500, 2.000, 2.500 e 3.000 mg L-1). As estacas foram coletadas na Fazenda de Ensino, Pesquisa e Extensão da Unesp, localizada no município de Selvíria, Estado de Mato Grosso do Sul, sendo padronizadas com 10 cm de comprimento e duas folhas. Após o preparo das estacas, estas foram tratadas com solução de Metiltiofan, posteriormente... |
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Palavras-chave: 5.01.03.04-0 Produção de Mudas Ficus carica L.; Propagação; Regulador vegetal; Enraizamento. Ficus carica L.; Propagation; Growth regulator; Rooting. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6635 |
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| FARIA,A. T.; FERREIRA,E. A.; ROCHA,P. R. R.; SILVA,D. V.; SILVA,A. A.; FIALHO,C. M. T.; SILVA,A. F.. |
| ABSTRACT Growth regulators can be used to further retard or inhibit vegetative growth. In this sense, the objective of this study was to determine the effects of age and number of trinexapac-ethyl applications on the growth and yield of sugarcane. The experiment was in a randomized complete block design with four replications. The treatments were in a 3 x 2 + 2 factorial arrangement, where factor A corresponded to the application times of the plant growth regulator (120, 200 and 240 days after bud burst (DAB) of sugarcane) and factor B to the number of applications (one or two applications). In addition, two controls (one with three applications and another application without the regulator) were added. The application of trinexapac-ethyl decreased the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulator; Application timing; Number of applications. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300491 |
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| Mendes-da-Glória,Fernanda Januzzi; Mourão Filho,Francisco de Assis Alves; Demétrio,Clarice Garcia Borges; Mendes,Beatriz Madalena Januzzi. |
| Nucellar tissues of seven Citrus varieties were introduced onto three growth media to produce embryogenic callus. The media tested were: EME [MT, modified, with the addition of malt extract (500 mg.L-1)]; 1/2-EME [half concentration of MT macronutrients + half concentration of BH3 macronutrients + 500 mg.L-1 malt extract + 1.55 g.L-1 of glutamine]; and EBA [EME + 0.44 muM 6-benzyladenine + 0.04 muM 2,4 D]. Soft friable calli were obtained from 'Cravo' and 'Ponkan' mandarins (Citrus reticulata, Blanco), 'Murcott' tangor (Citrus reticulata Blanco x Citrus sinensis L. Osbeck), 'Serra d'água' and 'Valencia' sweet oranges (Citrus sinensis, L. Osbeck) 120 days after callus induction. 'Natal' and 'Pera' sweet oranges (Citrus sinensis, L. Osbeck) produced hard... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biotechnology; Tissue culture; Cultivar improvement; Growth regulator; Protoplast. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161999000500012 |
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| Rossato, Marieli; Schumacher, Pedro Vitor; Costa Netto, Antônio Paulino da; Stein, Vanessa Cristina; Reis, Edésio Fialho dos; Vilela, Marlúcia Souza Pádua; Paiva, Luciano Vilela. |
| Campomanesia adamantium is a native plant species of Brazilian Cerrado with diverse economic potential and great medicinal importance. Its sexual propagation is impaired by the recalcitrance of its seeds, which prevents effective and profitable propagation. With the purpose of establishing commercial crops and minimizing the extractive use of vegetal resources, the aim of the present study was to induce embryogenic calli in nodal segments of gabirobeira, and to determine and characterize their embryogenic phase through the establishment of a growth curve based on cellular characteristics. Calli were induced using nodal segments inoculated in WPM culture medium without the addition of hormones (control) and with different concentrations of 2,4-D, IAA, IBA,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Somatic embryogenesis; Growth regulator; Callus. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46358 |
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| Lima,Guilherme Machado de Sousa; Pereira,Marlon Cristian Toledo; Oliveira,Moacir Brito; Nietsche,Silvia; Mizobutsi,Gisele Polete; Públio Filho,Wilson Maciel; Mendes,Débora Souza. |
| ABSTRACT: The objective of this study was to evaluate the effects of different doses of uniconazole (UCZ) on 'Palmer' mango vegetative and reproductive response and on fruit physical, chemical, and productive characteristics during the off-season in northern Minas Gerais, Brazil. The experiment followed a randomized block design. UCZ was tested at the following doses applied to leaves and expressed in g of UCZ active ingredient (a.i.) per tree: 0.0, 1.0, and 1.0+1.0 (2.0) after 30 days; 1.0+1.0+1.0 (3.0) subdivided into 30-day intervals; and 1.0+1.0+2.0 (4.0) subdivided into 30-day intervals. All of the UCZ treatments reduced branch elongation in the 'Palmer' mango trees, leading to a mean reduction of 81.6% compared to the control. However, the UCZ... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangifera indica; Growth regulator; Flowering; Off-season crop; Yield.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000801350 |
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| França,Christiane de Fátima Martins; Ribeiro,Wellington Souto; Santos,Mirelle Nayana Sousa; Petrucci,Kharen Priscilla de Oliveira Salomão; Rêgo,Elizanilda Ramalho do; Finger,Fernando Luiz. |
| Abstract: The objective of this work was to evaluate the action of paclobutrazol (PBZ) on the growth and ornamental value of two pepper accessions and two commercial cultivars of ornamental pepper - Biquinho Vermelha and Bode Amarela. A PBZ aqueous solution (250 mL) was used to soak the substrate at 0, 20, 40, and 60 mg L-1 a.i. concentrations when the plants had 12 cm height. At the end of plant growth, the follwoing parameters were evaluated: plant height, chlorophyll content in leaves, number of fruit and leaves, and canopy compactness at the time the plants reached maturity to be marketed, with 30% of ripe fruit. Irrespective of the applied PBZ concentration, plant height diminished, and chlorophyll content increased. PBZ did not improve the ornamental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capsicum annuum; Capsicum chinense; Chlorophyll; Growth regulator. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000300316 |
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| Lima,Juliana Domingues; Ansante,Nathalia Felipe; Nomura,Edson Shigueaki; Fuzitani,Eduardo Jun; Silva,Silvia Helena Modenese-Gorla da. |
| Gibberellic acid (GA3) induces flowering of plants of various genera of the Araceae family. Therefore, it was evaluated the effect of GA3 on the growth and yield of Anthurium andraeanum cv. 'Apalai'. For this purpose, micropropagated seedlings were planted in nursery beds under 70% shade. The experimental design was completely randomized in subdivided plots with eight replications. The growth regulation effect was assessed in each plot and the time to flowering after the start of the treatments was assessed in each subplot. The GA3 concentrations were 0, 150, 300, 450 and 600mg L-1, applied every 60 days by spraying on the leaves. The applications and evaluations started after the production of marketable floral stems. Every month the number of leaves was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthurium andraeanum Linden ex André; Gibberellin; Growth regulator; Flowering. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000801327 |
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| March,S.R.; Martins,D.; McElroy,J.S.. |
| Well-maintained lawns are comfortable and safe places for leisure activities and sports practice, and they also bring environmental benefits; for example, they reduce soil exposure to erosion and releases atmospheric CO2, thus reducing the greenhouse effect. However, regardless of the purpose of use or the choice of the plant species to form the lawn, the highest costs involve cutting that is needed to keep the turfgrass at its appropriate height. Successive lawn cutting operations are necessary basically because of the vegetative and reproductive growth of turfgrass which, in Brazil, occurs mainly from October to March. Expenditures with successive mechanical cuttings have fostered the search of alternative procedures to keep lawn plants at appropriate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulator; Lawn; Bio-stimulant; Injury; Selectivity; Herbicide. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582013000300025 |
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| AMÉRICO,G.H.P.; AMÉRICO-PINHEIRO,J.H.P.; FURLANI JR,E.. |
| ABSTRACT: The aim of this study was to evaluate the hormesis effect of sub-doses of dichlorophenoxy acetic acid herbicide and the plant growth regulator mepiquat chloride on the vegetative and productive characteristics of two cotton cultivars (FMT 701 and Fibermax 966). The experiment was conducted from November 2013 to May 2014. The experimental design was a randomized block in a factorial scheme 6 x 2 x 2, with four replications, totaling 96 installments with 24 treatments: the witness and five sub-doses of the herbicide 2,4-D: 0.68, 1.36, 2.04, 2.72 and 3.40 g equivalent acid (e.a) per ha, with and without application of mepiquat chloride at a dose of 200 mL ha-1 in the cotton cultivars FMT 701 and Fibermax 966. The sub-doses applied were 2,4-D at 45... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum; Herbicide; Growth regulator. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100277 |
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| Loss, Arcângelo; UFRRJ; Teixeira, Michelle Barbosa; UFRRJ; Santos, Tiago de Jesus; UFRRJ; Gomes, Vicente Martins; UENF; Queiroz, Lydia Huguenim; UFRRJ. |
| Foi avaliado o efeito de três concentrações de auxina (0, 2.000 e 6.000 ppm) (ácido indol-bultírico - AIB) para induzir a formação de raízes adventícias em três tipos de estacas caulinares (herbáceas, semilenhosas e lenhosas) de malvavisco (Malvaviscus arboreus Cav.). As estacas foram cortadas em bisel, com aproximadamente 12 cm cada, tratadas com o fungicida benomyl e, posteriormente, com AIB. As avaliações foram feitas 30 dias após o plantio, sendo avaliado o aparecimento ou não de calos, raízes e brotações. Entre as estacas, as lenhosas apresentaram melhor capacidade regenerativa, atingindo o máximo de tecido caloso, enraizamento e brotação, independentemente da concentração de AIB utilizada. No tratamento com AIB na concentração de 2.000 ppm, em... |
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Palavras-chave: 5.01.00.00-9 Agronomia Malvaceae; Propagação; Regulador de crescimento Produção de mudas Malvaceae; Propagation; Growth regulator. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/799 |
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| Registros recuperados: 31 | |
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