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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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| Rey, Maristela dos Santos; Programa de Pós Graduação em Fitossanidade, Universidade Federal de Pelotas; Pinho, Daiane Schimit de; Porgrama de Pós-Graduação em Biotecnologia, Universidade Federal de Pelotas; Vieira, Anieb Prestes; Iniversidade Federal de Pelotas; Braga, Eugenia Jacira Bolacel; Programa de Pós-Graduação em Fisiologia Vegetal; Pierobom, Carlos Roberto; Programa de Pós-Graduação em Fitossanidade; Peters, José Antônio; Programa de Pós-Graduação em Fisiologia Vegetal, Universidade Federal de Pelotas. |
| O objetivo deste estudo foi verificar o efeito do Thidiazuron (TDZ) na regeneração in vitro de mesocótilos de duas cultivares de arroz. Para tal finalidade, os explantes foram inoculados em meios MS contendo diferentes concentrações de TDZ. Os resultados indicam que ocorreu um efeito significativo da concentração do regulador de crescimento em relação à taxa de regeneração e comprimento de brotações. Para a variável comprimento das brotações houve, também, uma interação entre os fatores cultivar e concentração do regulador de crescimento. Para os brotos de primeira passagem observaram-se diferenças significativas na taxa de regeneração das cultivares, bem como entre as doses e interação entre doses e cultivares. Todas as concentrações de TDZ utilizadas... |
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Palavras-chave: 5.01.00.00-9 cultivo in vitro; Regeneração; Regulador de crescimento 5.01.00.00-9 in vitro culture; Regeneration; Growth regulator. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3443 |
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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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| 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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| Silva,Barbara Marçon Pereira da; Binoti,Raquel Mantovani; Cia,Patrícia; Valentini,Sílvia Regina de Toledo; Bron,Ilana Urbano. |
| ABSTRACT Methyl jasmonate (MJ) is an endogenous regulator that can influence fruit ripening and the defense system against pathogens. This work verified the influence of this regulator on postharvest physiology, control of anthracnose and physicalchemical attributes of ‘Kumagai’ guava (Psidium guajava L.). Guavas harvested at mature-green and ripe stages were treated with 0, 1 and 10 μmol∙L−1 MJ as gas in hermetic containers (200 L) with air circulation for 24 h. Fruit were inoculated with Colletotrichum gloeosporioides spore suspension (105 spores∙mL−1) 24 and 48 h after treatment. During ripening, at 25 °C and 80 – 90% of relative humidity, respiration, ethylene production, anthracnose incidence, severity and quality of guavas were assayed. Data were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colletotrichum gloeosporioides; Psidium guajava L.; Growth regulator. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000100167 |
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| Francescangeli,Nora. |
| Because of the increasing and diversified demand for potted plants, there is interest in Argentina in commercial iris production (Iris x hollandica Tub.). Two experiments were performed at the Instituto Nacional de Tecnología Agropecuaria (INTA), San Pedro Agricultural Experimental Station (33º41 S, 59º41 W), Buenos Aires Province. The effects of increasing concentrations of paclobutrazol (PBZ) and combinations of PBZ and 6-benzylaminopurine (BA) were compared. Height, length of the cycle and rate of flowering were registered. Experiment 1: the bulbs were subjected to immersion in nine concentrations of PBZ: 0, 10, 20, 30, 40, 50, 60, 70 or 80 mg L-1 for 24 h. Experiment 2: the bulbs were immersed in three concentrations of PBZ: 0, 10 or 20 mg L-1 for 24... |
| Tipo: Journal article |
Palavras-chave: Bulbous; Growth regulator; Height. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400005 |
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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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| 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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| Registros recuperados: 31 | |
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