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Registros recuperados: 81 | |
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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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Bisi, Rayane Barcelos; Locatelli, Guilherme; Barbosa, Caio Morais de Alcântara; Pio, Rafael; Balbi, Rodrigo Vieira. |
Although Brazil is the largest fig (Ficus carica L.) producer in the Southern Hemisphere, it mainly uses only one cultivar, ‘Roxo de Valinhos’. In addition, propagation is almost entirely through hardwood cuttings. Therefore, the aim of this study was to establish a propagation method that provides more successful rooting of stem segments of fig cultivars for the purpose of expanding the genetic base of the fig tree. The cultivars used were ‘Brunswick’, ‘Calabacita’, ‘Negro de Bursa’, ‘Mini Figo’, ‘Lampa Preta’, ‘Lemon’, ‘Troiano’,’ Nazaré’, ‘Três num Prato’, ‘Princesa’, ‘Colo de Dama’, ‘Montes’, ‘Bêbera Branca’, ‘Pingo de Mel’, and ‘Roxo de Valinhos’. The propagation methods used were layering, hardwood cuttings, nodal segments, herbaceous cuttings... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.00.00-9 Ficus carica L.; Air layering; Herbaceous cuttings; Vegetative propagation; Woody cuttings Fitotecnia. |
Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28117 |
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Tovar-Pedraza,Juan M.; Mora-Aguilera,José A.; Nava-Díaz,Cristian; Téliz-Ortiz,Daniel; Valdovinos-Ponce,Guadalupe; Villegas-Monter,Ángel; Hernández-Morales,Javier. |
Dieback of mamey sapote (Pouteria sapota) grafts is the most important disease during vegetative propagation in commercial nurseries. In 2008, Lasiodiplodia theobromae identified by cultural, morphological and molecular characterization was associated with this disease in 97 % of necrotic rootstocks and scions samples from a nursery in Guerrero, México. The fungus was inoculated onto the binding site of El Mexicano grafted plants. Dieback symptoms and gradual drying with cracking of the bark from the apex to the base of the scion were observed 30 d after inoculation. Abundant mycelia and pycnidia were found on inoculated scions and graft union areas, in the periderm, and on leaf scars. Transverse sections of inoculated scions tissues showed pycnidia.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dieback; Nursery; Vegetative propagation; Pouteria sapota; Lasiodiplodia theobromae. |
Ano: 2012 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000200005 |
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Silva,Anderson de Carvalho; Oliveira,Lenaldo Muniz de; Silva,Aritana Alves da. |
ABSTRACT: Eplingiella fruticosa (Salzm. ex Benth.) Harley & J.F.B. Pastore, also known as âalecrim de vaqueiroâ or âcowboy rosemaryâ, is a woody, perennial, and aromatic shrub that growsin the states of northeast Brazil, with the exception of Alagoas, Maranhão, and PiauÃ. The plant is widely used in this region and has analgesic, vasodilator, anti-inflammatory, and larvicidal properties.The objective of this study was to evaluate the effect of different substrates and indolebutyric acid (IBA) on cuttings of E. fruticosa for identifying effective practices for the vegetative propagation of this species. Apical cuttings with a standardized length of 10cm and two pairs of leaves were harvested from mother plants in the vegetative stage. Two... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lamiaceae; Vegetative propagation; Medicinal plants; Hyptis. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200201 |
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Fragoso,Rosimeri de Oliveira; Stuepp,Carlos André; Sá,Francielen Paola de; Kratz,Dagma; Zuffellato-Ribas,Katia Christina; Wendling,Ivar. |
ABSTRACT: We aimed to evaluate the rooting potential of Tibouchina sellowiana through the experiments: I - Cuttings from current-year shoots and epicormic shoots were submitted to IBA concentrations: 0, 500, 1000, 1500 and 2000mg L-1, in a factorial arrangement 2 x 5 (two types of cuttings x five IBA concentrations), with four replicates and 20 cuttings each; II - mini-stumps of Tibouchina sellowiana were submitted to successive shoots collecting during the four seasons, in a split-plot design, with five replications of ten mini-stumps per experimental unit. From the shoots of mini-stumps, mini-cuttings were produced, which were initially kept in greenhouse and later transferred to full sun, in a 4 x 5 factorial arrangement (four seasons x five collections... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Auxin; Clonal mini-garden; Ornamental species; Rejuvenation; Vegetative propagation. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100402 |
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Zem,Luciele Milani; Zuffellato-Ribas,Katia Christina; Radomski,Maria Izabel; Koehler,Henrique Soares. |
Drymis brasiliensis Miers is a specie of the Winteraceae family, commonly known as cataia or pepper bark. This research was carried out with the aim to study the rooting of semihardwood cuttings, subjected to different concentrations of indolebutyric acid (IBA), collected in four seasons of the year (autumn, winter, spring and summer). Cuttings were prepared with 10-12cm length, keeping two halved leaves. Bases of cuttings were treated as follows: control (100% water), 0; 500; 1500; 3000; 4500 and 6000mg L-1 IBA.One hundred and twenty after the planting the following variables were assessed: rooting percentage, number of roots per cutting, length of roots per cutting, cutting callus percentage, cuttings with new shoots and number of cuttings that... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Winteraceae; Drimys brasiliensis; Indolebutyric acid; Vegetative propagation. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001815 |
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Bona,Claudine Maria de; Biasi,Luiz Antonio; Lipski,Bernardo; Masetto,Magda Aparecida Maia; Deschamps,Cícero. |
Lavandula species may be propagated by seeds. However, plants will present expressive variation both in size and essential oil content. Indole-3-butyric acid (IBA) is a growth regulator which efficiently stimulates rooting and the objective of this research was to observe the influence of different IBA concentrations on rooting of L. dentata cuttings. Herbaceous cuttings with approximately 10cm in length and around 1/3 of leaf retention had their bases submerged into 0 (control), 500, 1.000, 2.000 or 3.000mg dm-3 of IBA diluted in de-ionized water for 30 seconds and placed in polystyrene foam trays filled with commercial substrate and kept under intermittent mist system. Averages of root number, length of the longest root, fresh and dry root weight, and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: IBA; Vegetative propagation; French lavender. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000500034 |
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Castillo Flores, Jesús Daniel. |
La declinación forestal en el Desierto de los Leones, D.F. afecta al Abies religiosa, una de las especies dominantes en la región, requiriendo desarrollar estrategias de conservación. En el presente estudio se desarrolló un método de propagación vegetativa, lográndose determinar si el efecto de la procedencia, edad del material, tipo de hormona usada y la presencia de síntomas de declinación, influyen en la capacidad de enraizamiento de estacas de esta especie. Se realizaron tres experimentos de los cuales, sólo el tercero produjo enraizamiento. En este experimento se utilizó un sustrato compuesto por turba y agrolita para probar estacas de dos procedencias con y sin síntomas, generadas en dos estaciones de crecimiento y dos auxinas, manteniendo una... |
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Palavras-chave: Oyamel; Propagación vegetativa; Procedencia; Auxinas; Edad de estaca; Acido indolbutírico; Acido naftalenacético; Vegetative propagation; Provenance; Auxins; Age of cutting; Indol-butyric acid; Naphthalenacetic acid; Maestría; Forestal. |
Ano: 2011 |
URL: http://hdl.handle.net/10521/423 |
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Castillo Flores, Jesús Daniel. |
La declinación forestal en el Desierto de los Leones, D.F. afecta al Abies religiosa, una de las especies dominantes en la región, requiriendo desarrollar estrategias de conservación. En el presente estudio se desarrolló un método de propagación vegetativa, lográndose determinar si el efecto de la procedencia, edad del material, tipo de hormona usada y la presencia de síntomas de declinación, influyen en la capacidad de enraizamiento de estacas de esta especie. Se realizaron tres experimentos de los cuales, sólo el tercero produjo enraizamiento. En este experimento se utilizó un sustrato compuesto por turba y agrolita para probar estacas de dos procedencias con y sin síntomas, generadas en dos estaciones de crecimiento y dos auxinas, manteniendo una... |
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Palavras-chave: Oyamel; Propagación vegetativa; Procedencia; Auxinas; Edad de estaca; Acido indolbutírico; Acido naftalenacético; Vegetative propagation; Provenance; Auxins; Age of cutting; Indol-butyric acid; Naphthalenacetic acid; Maestría; Forestal. |
Ano: 2011 |
URL: http://hdl.handle.net/10521/423 |
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Marodin,Josué C; Resende,Francisco V; Resende,Juliano TV de; Gabriel,André; Zeist,André R; Constantino,Leonel V; Sanzovo,Alisson WS. |
ABSTRACT Studies on the interaction between garlic plant density and virus-free seed size are scarce in Brazil. Thus, this study was installed to evaluate the effect of plant spacing and seed size on garlic traits and yield for infected and virus-free bulbs. Treatments were arranged in a randomized block design and 2x5x3 factorial combination [infected and virus-free bulbs, five plant spacings (210, 260, 300, 360, and 390 cm2 per plant), and three bulbous seed sizes (sieve one, two, and three)]. The highest bulb yield was observed for virus-free seeds at a plant spacing of 390 cm2 plant-1, while the highest commercial yield was verified for 210 cm2 plant-1 spacing. The combination of virus-free seeds, larger bulbs, and 332 cm2 plant-1 spacing promoted the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium sativum; Degeneration; Plant density; Vegetative propagation. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300295 |
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Ulisses,Cláudia; Morais,Marciana; Barbosa,Marta R; Albuquerque,Cynthia C; Willadino,Lilia; Camara,Terezinha R. |
ABSTRACT The aim of this study is to compare physiological development of Heliconia bihai cv. Lobster Claw Two plants derived from in vitro culture of zygotic embryos and conventional propagation. Heliconias obtained from rhizomes and from in vitro multiplication were evaluated every 30 days during ten months under greenhouse conditions. The experimental design was completely randomized, with ten repetitions, and the 2x10 factorial arrangement consisted of two plant multiplication methods and ten evaluations performed at different times. The analyzed biometric parameters were plant height, number of leaves, number of tillers, leaf area, and color intensity in the bracts. Plants derived from in vitro culture showed significant differences in the development... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heliconia bihai; Micropropagation; Rhizome; Vegetative propagation. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200229 |
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Baldotto,Lílian EB; Baldotto,Marihus A. |
Plant regulators, as well as bioactive fractions of the organic matter, can accelerate the development and increase the efficiency of adventitious rooting in ornamental plants. We evaluated rooting in the Brazilian red-cloak (Megaskepasma erythrochlamys) and sanchezia (Sanchezia nobilis) cuttings in response to application of indole-butyric acid (IBA) and humic acids (HA). Stem cuttings of both species treated with solutions of 0, 250, 500, 1000, 2000 mg/L of IBA and 0, 10, 20, 30, 40 mmol/L of C of HA were placed in 2.0 L plastic pots containing carbonized rice husk, kept in greenhouse. Survival of cuttings, number of leaves and shoot and root fresh and dry matter were evaluated 45 days after. Data were used to run an analysis of variance. We observed the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Megaskepasma erythrochlamys; Sanchezia nobilis; Vegetative propagation; Humic substances; Auxins.. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000400434 |
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Registros recuperados: 81 | |
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