14 results on '"ROOT formation"'
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2. MICROPROPAGAÇÃO DA VALERIANA OFFICINALIS L. E HYPERICUM CAVERNICOLA L. B. SM.
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Alves Lameira, Osmar, Castro Coimbra Cordeiro, Iracema Maria, de Miranda Rodrigues, Simone, Alves Ferreira, Tassia Alana, Pacheco de Oliveira, Elaine Cristina, Miranda Leão, Fábio, Pereira dos Santos, Janaina, and Prado Neves, Raphael Lobato
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PLANT germplasm ,ROOT formation ,PLANT tissue culture ,PLANT biotechnology ,PLANT regulators - Abstract
Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
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3. Raízes agrárias, lugar no sertão, lugar no CPDA: uma homenagem à professora Eli Napoleão de Lima.
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Meneses, Valdênio Freitas
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SOCIAL scientists ,ROOT formation ,AGE groups ,RESEARCH personnel ,SOCIAL conflict - Abstract
Copyright of Estudos Sociedade e Agricultura is the property of Revista Estudos Sociedade e Agricultura and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
4. Effect of orthodontic forces on root length of immature mandibular second premolars: a split-mouth randomized clinical trial
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Kazem DALAIE, Mohammadreza BADIEE, Mohammad BEHNAZ, and Shahab KAVOUSINEJAD
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Immature teeth ,Orthodontic force ,Root formation ,Root resorption ,Dentistry ,RK1-715 - Abstract
ABSTRACT Objective: To assess the effect of orthodontic forces on changes in root length of immature mandibular second premolars. Methods: Sixty-four mandibular second premolars (MSP) with immature apices (left and right sides) of 32 patients aged between 10 and 13 years were evaluated. Orthodontic treatment was started after obtaining periapical radiographs (T1) from the MSPs of each patient. Brackets were bonded, except the ones of MSPs (left or right by random as control MSP, and the other side as test MSP). After 9-12 months, a second periapical radiograph (T2) was obtained from the MSPs of each patient. Then, brackets were bonded to the control MSPs, which were not bonded before. After 18 ± 3 months, a third periapical radiograph (T3) was obtained. Changes in root length were evaluated by using a new formula. The test and control MSPs at T1, T2 and T3 were compared using repeated measures ANOVA and parametric tests. P-value smaller than 0.05 was statistically significant. Results: There was no significant difference between the test and control groups in the mean root length of MSP at T1 (p= 0.48) and T3 (p= 0.078). The root length at T2 (p= 0.001) was significantly different between test and control MSPs, and the test group showed longer root length than the control group. Conclusions: Orthodontic force applied for leveling and alignment of immature MSPs may not have destructive effects on the roots, and may accelerates root formation in short-term. Normal root length was achieved at the end of root development.
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- 2021
- Full Text
- View/download PDF
5. CAPEAMENTO PULPAR DIRETO COM AGREGADO TRIÓXIDO MINERAL EM DENTE COM RIZOGÊNESE INCOMPLETA: RELATO DE CASO CLÍNICO.
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IGOR DONÁ, BEN HUR, OLIVEIRA FIRMIANO, BRENDA, COLOMBELI, MATHEUS, JOSÉ BASTOS, HUGO, RODRIGUES DO NASCIMENTO, VANESSA, and FERNANDO TOMAZINHO, LUIZ
- Abstract
Pulp capping is presented as a conservative alternative that allows the maintenance of the dental element and its vitality without the need for conventional endodontic treatment. It is extremely valid in cases where root formation is not complete as it allows this process to be completed as pulp vitality is maintained. Therefore, the aim of this study was to present a clinical case where direct pulp capping was performed on a tooth with incomplete rhizogenesis, allowing the process of root formation of the element in question to be complete. Through periodic clinical and radiographic follow-ups evaluating the direct pulp capping using the Mineral Trioxide Aggregate, together with the articles present in the literature that show the characteristics, applications, comparisons with other capping materials and follow-up of clinical cases evaluating their use, we concluded that the MTA was well indicated in cases of direct pulp capping, presenting satisfactory results and justifying its clinical use, and may be the material of choice in these cases. [ABSTRACT FROM AUTHOR]
- Published
- 2019
6. ENRAIZAMENTO DE ESTACAS DE Pyrostegia venusta MIERS - BIGNONIACEAE.
- Author
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Caetano Pimenta, Alex, Ribeiro de Souza Grzybowski, Camila, Bruzamarello Tognon, Grasiela, Mossanek, Ernâni, and Zuffellato-Ribas, Katia Christina
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VEGETATIVE propagation , *ROOT formation , *CLIMBING plants , *NATIVE plants , *HARDWOODS , *ORNAMENTAL plants - Abstract
Pyrostegia venusta Miers is a brazilian native climbing plant. It is a well-known specie for its medicinal proprieties and its usage as an ornamental plant as well. Although, there's a lack of information about its vegetative propagation. Thus, the main objective of this project was to evaluate the effects of different lengths of stem cuttings and different concentrations of indol-butyric acid (IBA) on root formation of P. venusta stem cuttings. The experiment was conducted at Setor de Ciências Biológicas da Universidade Federal do Paraná, em Curitiba - PR in a green house for 90 days. The basis of semi-hardwood cuttings with 6 and 12 cm length were treated in a water-alcohol solution containing 3 different concentrations of indol-butyric acid (0, 1000 and 2000 mg L-1). The variables analyzed were the percentage of rooted cuttings, alive and dead cuttings, cuttings with callus and sprouted cuttings; average number and length of roots per cutting. In this experiment we can conclude that the rooting percentage, root number per cutting and root length is not influenced by the length of the stake Pyrostegia venusta; and the application of IBA positively affects only the root length of cuttings. [ABSTRACT FROM AUTHOR]
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- 2019
7. Nutrição e enraizamento adventício de plantas lenhosas.
- Author
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Bortolanza Pereira, Fernanda and Bandeira Peres, Fabiana Schmidt
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Vegetative propagation success of commercial genotypes via cutting techniques is related to several factors, including nutritional status of mother trees and of propagation material. The nutritional status determines the carbohydrate quantities, auxins and other compounds of plant essential metabolism for root initiation and development. Each nutrient has specific functions in plant, acting on plant structure or on plant physiology. Although the importance of mineral nutrition for success of woody plants vegetative propagation and its relation with adventitious rooting is recognized, the role of some mineral nutrients is still unknown. Due to biochemical and physiological complexity of adventitious rooting process, there are few researches to determine de role of nutrients on development of adventitious roots. This review intends to explore de state of the art about the effect of mineral nutrition on adventitious rooting of woody plants. [ABSTRACT FROM AUTHOR]
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- 2016
- Full Text
- View/download PDF
8. Nutrição e enraizamento adventício de plantas lenhosas
- Author
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Pereira, Fernanda Bortolanza and Bandeira Peres, Fabiana Schmidt
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Root formation ,estaquia ,adubação mineral ,Cutting ,propagação ,Propagation ,rizogênese - Abstract
Vegetative propagation success of commercial genotypes via cutting techniques is related to several factors, including nutritional status of mother trees and of propagation material. The nutritional status determines the carbohydrate quantities, auxins and other compounds of plant essential metabolism for root initiation and development. Each nutrient has specific functions in plant, acting on plant structure or on plant physiology. Although the importance of mineral nutrition for success of woody plants vegetative propagation and its relation with adventitious rooting is recognized, the role of some mineral nutrients is still unknown. Due to biochemical and physiological complexity of adventitious rooting process, there are few researches to determine de role of nutrients on development of adventitious roots. This review intends to explore de state of the art about the effect of mineral nutrition on adventitious rooting of woody plants. O sucesso da propagação vegetativa de genótipos comerciais via técnicas de estaquia está relacionado a diversos fatores, dentre os quais o estado nutricional das plantas matrizes doadoras de propágulos e dos propágulos. O status nutricional determina a quantidade de carboidratos, auxinas e outros compostos do metabolismo essencial da planta para a iniciação e desenvolvimento da rizogênese. Cada nutriente possui na planta funções específicas essenciais, podendo atuar estruturalmente ou fisiologicamente. Contudo, apesar de se reconhecer a importância da nutrição mineral para o sucesso da propagação vegetativa de espécies lenhosas e sua relação com o enraizamento adventício, o papel de alguns elementos são ainda desconhecidos. Pela complexidade bioquímica e fisiológica do processo de enraizamento adventício, há escassez de trabalhos buscando determinar o papel nos nutrientes no desenvolvimento adventício de raízes. A presente revisão bibliográfica pretende explorar o estado da arte no que se refere aos conhecimentos sobre o efeito da nutrição mineral no enraizamento adventício de espécies lenhosas, bem como apresentar ao final uma breve revisão sobre outros compostos de origem orgânica que podem ser empregados com o intuito de melhorar o processo rizogênico.
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- 2016
9. Distribuição do sistema radicular de porta-enxertos de umezeiro enxertados com o pessegueiro 'Aurora-1'
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Newton Alex Mayer, Valter Yoshio Koba, José Carlos Barbosa, Fernando Mendes Pereira, Universidade Estadual Paulista (Unesp), and Fazenda São Benedito
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Root formation ,Canopy ,Prunus persica ,vegetative propagation ,stone fruits ,Prunus mume ,Biology ,Herbaceous plant ,propagação vegetativa ,Cutting ,Prunus ,Horticulture ,Botany ,Animal Science and Zoology ,Cultivar ,Rootstock ,Agronomy and Crop Science ,frutas de caroço ,Field conditions - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:46:58Z No. of bitstreams: 1 S0100-204X2007000700008.pdf: 1372259 bytes, checksum: f3f9164c1f9866cd28eda67a6d51cc45 (MD5) Made available in DSpace on 2013-08-22T18:46:58Z (GMT). No. of bitstreams: 1 S0100-204X2007000700008.pdf: 1372259 bytes, checksum: f3f9164c1f9866cd28eda67a6d51cc45 (MD5) Previous issue date: 2007-07-01 Made available in DSpace on 2013-09-30T19:36:37Z (GMT). No. of bitstreams: 2 S0100-204X2007000700008.pdf: 1372259 bytes, checksum: f3f9164c1f9866cd28eda67a6d51cc45 (MD5) S0100-204X2007000700008.pdf.txt: 28471 bytes, checksum: db99b9dfac42a24e36f50e5c2ad3a022 (MD5) Previous issue date: 2007-07-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:13:34Z No. of bitstreams: 2 S0100-204X2007000700008.pdf: 1372259 bytes, checksum: f3f9164c1f9866cd28eda67a6d51cc45 (MD5) S0100-204X2007000700008.pdf.txt: 28471 bytes, checksum: db99b9dfac42a24e36f50e5c2ad3a022 (MD5) Made available in DSpace on 2014-05-20T13:13:34Z (GMT). No. of bitstreams: 2 S0100-204X2007000700008.pdf: 1372259 bytes, checksum: f3f9164c1f9866cd28eda67a6d51cc45 (MD5) S0100-204X2007000700008.pdf.txt: 28471 bytes, checksum: db99b9dfac42a24e36f50e5c2ad3a022 (MD5) Previous issue date: 2007-07-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) O objetivo deste trabalho foi estudar a distribuição do sistema radicular de três porta-enxertos de umezeiro (Prunus mume Siebold et Zucc.), Clone 05, Clone 15 e a cultivar Rigitano, propagados por estacas herbáceas, em condições de campo. As plantas, enxertadas com o pessegueiro 'Aurora-1' [Prunus persica (L.) Batsch], foram conduzidas no espaçamento de 6x1 m em Argissolo Vermelho-Amarelo eutrófico de textura arenosa média. Aos 34 meses após o transplantio, foram avaliadas duas plantas de cada porta-enxerto, tendo-se demarcado 36 monólitos (0,5x0,5x0,4 m) ao redor de cada planta, com barras de ferro (0,6 m) e fitas de plástico. O solo foi removido com jatos de água até a profundidade de 0,4 m. Não houve diferença entre os porta-enxertos, na massa de matéria fresca e seca de raízes, e na distribuição das raízes finas e grossas ao redor da planta. Mesmo sem a formação de uma raiz pivotante típica, as raízes grossas apresentaram crescimento vertical, além dos 0,4 m avaliados, e concentraram-se a 0,5 m ao redor do tronco da planta. As raízes finas apresentaram crescimento horizontal, além da projeção da copa, e também além dos 1,5 m avaliados, no sentido transversal à linha de plantio. Os Clones 05, 15 e a cultivar Rigitano de umezeiro, usados como porta-enxerto de pessegueiro, apresentam ancoragem satisfatória de plantas. The objective of this research was to study the root distribution of three mume (Prunus mume Siebold et Zucc.) rootstocks (Clone 05, Clone 15, and Rigitano cultivar) propagated by herbaceous cuttings, in field conditions. The plants budded with 'Aurora-1' peach [Prunus persica (L.) Batsch] were carried in 6x1 m space in a Hapludalfs soil with sandy medium texture. After 34 months of transplant, two plants of each rootstock were evaluated, being demarcated 36 monoliths (0.5x0.5x0.4 m) round about of each plant, with iron bars (0.6 m) and plastic ribbons. The soil was removed with water jets until 0.4 m depth. There were no differences, among rootstocks, in fresh and dry root weight, and in thin and thick roots which showed similar distribution around the plant among rootstocks studied. Although showing no typical axial root formation, thick roots presented vertical growth, beyond 0.4 m depth, and concentrated 0.5 m around the trunk. The fine roots presented horizontal growth beyond the canopy projection and beyond the evaluated distance of 1.5 m in transversal sense to line plantation. The clones 05, 15 and Rigitano cultivar, used as mume rootstocks, show suitable peach tree anchorage. Universidade Estadual Paulista Fac. de Ciências Agrárias e Veterinárias Dep. de Produção Vegetal Unesp Fcav Dep. de Ciências Exatas Fazenda São Benedito Universidade Estadual Paulista Fac. de Ciências Agrárias e Veterinárias Dep. de Produção Vegetal Unesp Fcav Dep. de Ciências Exatas
- Published
- 2007
10. Enraizamento de estacas de Pau-Brasil (Caesalpinia echinata Lam.) tratadas com ácido indol butírico e ácido naftaleno acético
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Claudiana Moura dos Santos, Laurício Endres, Paula Maria Guimarães Marroquim, and Neirevane Nunes Ferreira de Souza
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Alternative methods ,chemistry.chemical_classification ,Root formation ,High survival rate ,General Veterinary ,biology ,vegetative propagation ,Callus formation ,auxina ,Caesalpiniaceae ,biology.organism_classification ,propagação vegetativa ,Cutting ,chemistry ,Germination ,Auxin ,Botany ,Animal Science and Zoology ,Caesalpinia ,auxin ,Agronomy and Crop Science - Abstract
O pau-brasil (Caesalpinia echinata Lam.) tem grande valor cultural no Brasil e a sua propagação por sementes é dificultada pela rápida perda do poder germinativo delas. A estaquia pode ser usada para a produção de mudas de espécies florestais, principalmente quando existem algumas dificuldades de propagação por sementes. Este trabalho teve como objetivo caracterizar o efeito de concentrações e fontes de auxinas sobre o enraizamento de estacas de pau-brasil. Estacas com cerca de 12cm de comprimento e de um a dois pares de folhas foram tratadas na base com ácido indol butírico (AIB), ácido naftaleno acético (ANA) na forma líquida ou na forma de pó nas concentrações de 0, 1.250, 2.500, 5.000, 10.000mg L-1 ou mg Kg-1, respectivamente. As estacas foram transferidas para substrato contendo areia e mantidas sob nebulização (90-95% UR). Aos 120 dias de estaquia, foram avaliados a mortalidade, a retenção foliar, a formação de calo e a percentagem de estacas enraizadas. As estacas apresentaram índices de sobrevivência de até 70%. A formação de calos não foi relacionada com a concentração de auxinas utilizadas. O maior índice de enraizamento de estacas de pau-brasil, em torno de 16%, foi resgistrada com a utilização do ácido indolbutírico (AIB) e do ácido naftalenoacético (ANA) na concentração 2.500mg L-1. Os altos índices de sobrevivência e os baixos índices de enraizamento sugerem que as estacas devem permanecer por mais tempo sob nebulização, a fim de induzir o seu processo de enraizamento. The 'pau-brasil' tree (Caesalpinia echinata Lam.) have a high cultural value in Brazil and its seed propagation is very difficult because of its rapid losses of germination potential. Cuttings propagation has been considered as alternative method to propagate forest species that seed propagation is poor. The objectives of this study were to determine the effects of indole-3-butyric acid (IBA) and naphthalene acetic (NAA) acid on the adventitious root formation on stem cuttings of "pau-brasil". Cuttings with around 12cm length, with two pars of leaves, received a basal treatment of 0; 6,25; 12,50; 25 and 50mM IBA and NAA as solution form or 0, 1,250, 2,500, 5,000, 10,000mg Kg-1 as powder form. All cuttings were planted in cell trays containing sand and placed under greenhouse mist (90-95% relative humidity). After 120 days, cuttings were assessed for survival, foliar retention, callus formation and roots formation. There were high survival rate (up to 70%) of the cuttings. Callus formation was not correlated to auxin concentration. The utilization of liquid 25mM of IBA and NAA promoted the highest percentage of root formation, around 16%. The high survival rate associate with low percentage of root formation suggests that the cuttings may need longer time in greenhouse in order to stimulate root formation.
- Published
- 2007
11. Dovyalis sp propagation by air-layering process
- Author
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Natanael de Jesus, Rita Maria Devós Ganga, Antonio Baldo Geraldo Martins, Antonio Carlos Benassi, Erivaldo José Scaloppi Junior, Eduardo José de Almeida, and Universidade Estadual Paulista (Unesp)
- Subjects
Root formation ,Canopy ,biology ,Vegetative reproduction ,alporquia ,Plant Science ,Auxina ,Propagação vegetativa ,Dovyalis ,biology.organism_classification ,Horticulture ,Vegetative propagation ,Botany ,Layering ,auxin ,Agronomy and Crop Science ,marcottage ,Food Science - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:47:37Z No. of bitstreams: 1 S0100-29452004000300033.pdf: 52064 bytes, checksum: 1fbb9030185ae022b72bca39321dbf7c (MD5) Made available in DSpace on 2013-08-22T18:47:37Z (GMT). No. of bitstreams: 1 S0100-29452004000300033.pdf: 52064 bytes, checksum: 1fbb9030185ae022b72bca39321dbf7c (MD5) Previous issue date: 2004-12-01 Made available in DSpace on 2013-09-30T17:58:22Z (GMT). No. of bitstreams: 2 S0100-29452004000300033.pdf: 52064 bytes, checksum: 1fbb9030185ae022b72bca39321dbf7c (MD5) S0100-29452004000300033.pdf.txt: 23114 bytes, checksum: 4cc576844473506f921d76a866a66322 (MD5) Previous issue date: 2004-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:16:55Z No. of bitstreams: 2 S0100-29452004000300033.pdf: 52064 bytes, checksum: 1fbb9030185ae022b72bca39321dbf7c (MD5) S0100-29452004000300033.pdf.txt: 23114 bytes, checksum: 4cc576844473506f921d76a866a66322 (MD5) Made available in DSpace on 2014-05-20T13:16:55Z (GMT). No. of bitstreams: 2 S0100-29452004000300033.pdf: 52064 bytes, checksum: 1fbb9030185ae022b72bca39321dbf7c (MD5) S0100-29452004000300033.pdf.txt: 23114 bytes, checksum: 4cc576844473506f921d76a866a66322 (MD5) Previous issue date: 2004-12-01 Com objetivo de avaliar a capacidade de propagação vegetativa de Dovyalis sp. pelo método da alporquia, realizou-se o presente trabalho. Foram utilizados ramos com cerca de 50 centímetros, os quais receberam os tratamentos: 0; 1.000; 3.000; 5.000 e 7.000 mg/kg de ácido indolbutírico (AIB) diluídos em lanolina, em duas épocas do ano: outono e primavera. No outono, considerou-se como subparcelas as localizações dos alporques por toda a planta, analisando-as como alporques da parte superior e inferior da copa e das faces norte e sul da planta. Na primavera, por insuficiência de ramos, apenas foram consideradas as doses com AIB. Nas épocas estudadas, o outono foi a que demonstrou maior percentagem de enraizamento e número de raízes (93,93 e 10,26 %, respectivamente). Obteve-se que o enraizamento independe da posição do ramo na planta, para esta época. O maior comprimento de raízes foi obtido na primavera. Aiming to stud the capacity of vegetative propagation of Dovyalis sp. by layering method, this work was developed. It was used branches of 50 cm length, which received the following treatments: 0; 1,000; 3,000; 5,000 and 7,000 mg/kg of indolbutiric acid (IBA) diluted in lanolina, in two periods: autumn and spring. In autumn the layering was distributed in superior and inferior part of the canopy and north and south sides of the plant. In spring, due to few branches it was just considered treatments with IBA. The autumn period demonstrated the highest percentage of root formation (93.93 %) and number of roots (10.26 %), and the root formation do not depend on branch position on the plant. The highest length of root was obtained in spring. Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Produção Vegetal Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Produção Vegetal
- Published
- 2004
12. Propagação vegetativa de abacateiro por estaquia
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Samar Velho da Silveira, Paulo Vitor Dutra de Souza, and Otto Carlos Koller
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Root formation ,Abacate ,Plant Science ,Propagação vegetativa ,Biology ,Grafting ,Husk ,Persea sp ,Cutting ,Horticulture ,Etiolation ,Transplanting ,Cultivar ,Estiolamento ,Anelamento ,Agronomy and Crop Science ,Food Science - Abstract
Visando a propagar vegetativamente o abacateiro (Persea sp.) por meio de estacas, estiolaram-se ramos em mudas das cultivares Ouro Verde e Baronesa. Após a obtenção destas mudas por garfagem de fenda cheia, podou-se a parte aérea das mesmas 10 cm acima do ponto de enxertia. Metade das mudas foi colocada em câmara escura, coberta com polietileno preto, visando a forçar brotação estiolada, enquanto a outra metade foi posta a brotar em casa de vegetação, anelando-se a base de todos os ramos estiolados e não estiolados. Um mês após a poda das mudas, confeccionaram-se estacas, tanto de ramos estiolados quanto de não estiolados, com 20cm de comprimento e quatro folhas maduras, que foram tratadas com solução de 2000 mg L-1 de ácido indolbutírico (AIB), durante 10 segundos e colocadas, individualmente, em vasos plásticos pretos de 500 ml, contendo casca de arroz carbonizada como substrato. Após dois meses, estas foram repicadas para sacos de polietileno com capacidade para cinco litros. No momento do transplante, a taxa de enraizamento das estacas estioladas e não estioladas foi de 62,5% e 12,5%, respectivamente, para a cultivar Ouro Verde. A cultivar Baronesa não enraizou em nenhum caso. Após o transplante, as percentagens de enraizamento mantiveram-se as mesmas para a cultivar Ouro Verde, aumentando, contudo, o número de raízes por estaca. Já, para a cultivar Baronesa, as estacas não estioladas passaram a apresentar 12,5% de enraizamento, enquanto as estioladas continuaram com 0%.
- Published
- 2004
13. Influência do ethephon e do ácido indolbutírico no enraizamento de estacas de ramos de goiabeira (Psidium guajava L.)
- Author
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Cláudia Araújo Marco, João Gilberto Corrêa da Silva, and Elio Kersten
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Root formation ,General Veterinary ,Chemistry ,Vermiculite ,Horticulture ,Cutting ,chemistry.chemical_compound ,spray ,Botany ,propagation ,propagação ,substratos ,Animal Science and Zoology ,nebulização ,Orchard ,Agronomy and Crop Science ,substrates ,Ethephon - Abstract
Este trabalho teve o objetivo de avaliar a influência do ethephon, do ácido indolbutírico (AIB) e do substrato no enraizamento de estacas obtidas de ramos de goiabeira. As plantas de um pomar com cinco anos de idade foram pulverizadas com ethephon nas concentrações de zero, 50 e 100ppm, sendo que após sete dias, foram feitas estacas de ramos do último lançamento, com três nós por estaca e um par de folhas. Estas foram tratadas com as concentrações de zero, 1000, 2000, 3000 e 4000ppm de AIB na forma liquida, por imersão de dois cm da base da estaca durante cinco segundos. Os substratos utilizados como meio de enraizamento foram vermiculita e cinza de casca de arroz. Os resultados mostram que com a utilização de vermiculita obteve-se maior percentagem de estacas enraizadas (21,48 %). Os reguladores Ethephon e AIB afetaram a percentagem de estacas enraizadas assim como o número de raízes. The objective of this work was to evaluate the influence of ethephon, indole butyric acid (IBA) and substrate on root formation of guava stem cuttings. Orchard plants withfive years old were sprayed with ethephon in concentrations of zero, 50 and 100ppm. However, after seven days, stem cuttings were made, of the last lauching with three knots by cutting including one pair of leaves. Cuttings were treated with concentrations of zero, 1000, 2000. 3000 and 4000ppm of liquid IBA by immersion of two centimeter of the basis of cutting for five minutes. Vermiculite and ash rice were used as substrato. Results showed that the use of vermiculite produced greater percentage of cuttings rooted (21.48%). A greater cutting rooted and number of roots were obtained using ethephon and IBA.
- Published
- 1998
14. Estacas de amoreira tratadas com hormônios vegetais em dois sistemas de plantio e referentes coberturas do estufim
- Author
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F. Pimentel Gomes, Antonio Castilho Rúbia, and Romeu Inforzato
- Subjects
Root formation ,Cutting ,Horticulture ,Mulberry trees ,General Health Professions ,Botany ,Sowing ,Statistical analysis ,Mathematics - Abstract
Four experiments on root formation on cuttings of mulberry trees of the variety Catania 1 were carried out. In each case the hormones Dieradix "M D", Dieradix "D", indol 3-yl-acetic acid, and I-naphthyl acetic acid were used, besides the control, without hormone. In all cases "normal" and "upside-down" planting were tried. The percentage x of cuttings with roots, after 54 days, were computed and transformed by the formula y = arc sin √P/100 for use in statistical analysis. The combined analysis of variance of the 4 trials led to the following results: "Upside-down" planting showed significantly higher percentage of rooting; Indol 3-yl-acetic acid was significantly better than control or other hormones. The percentages of rooted cuttings were as follows: Normal planting Upside-dow planting Indol 3-yl acetic acid 43.5% 90.9% I-naphthyl acetic acid 1.9% 69.3% Control 4.7% 22.2% Dieradix «M D» 2.4% 63.8% Dieradix «D» 1.3% 36.0%
- Published
- 1963
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