Consulta: subjectFacets:"Phytohormones"
Registros recuperados: 14
Data/hora: 13/06/2024 06:04:44

Aplicação foliar de doses de bioestimulante em duas épocas na cultura do feijoeiro
Provedor de dados: 196
Autores: Lopes, Wytalo Oliveira; Varão, Lorenna Correia; Buso, Wilian Henrique Diniz.
Salinity is one of the environmental stresses that most affects plants' vital processes, especially germination. Brassinosteroids, including 24-epibrassinolide (EBL), have multiple actions in essential processes in plants. Thus, this research's objective was to evaluate the effects of EBL on tomato seeds' physiological conditioning on germination, growth, and production of dry seedling mass under salinity conditions. The experiment was carried out in a 2x5 factorial scheme, as follows: two concentrations of EBL (0 and 10-6 M) and five levels of salinity (0.5 control; 1.5; 3.0; 4.5 and 6.0 dS m-1), consisting of ten treatments, with four replications of 50 seeds. In isolation, the salt stress reduced the percentage of germination and germination speed index...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Biostimulant; Phytohormones; Phaseolus vulgaris; Bioestimulante; Fitohormônios.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6981

Producción de taxoides en cultivos in vitro de callos y células elicitadas de Taxus globosa.
Provedor de dados: 32
Autores: Barrales Cureño, Hebert Jair.
Los objetivos de este trabajo fueron: establecer un método de propagación in vitro para callos y células en suspensión de Taxus globosa, se realizaron pruebas de viabilidad celular; se elicitaron suspensiones celulares con jasmonato de metilo, etanol y una combinación de peróxido de hidrógeno con butionina de sulfoximina. Se cuantificaron tres taxoides: taxol, cefalomanina y 10-diacetil baccatina por Cromatografía Liquida de Alta Resolución en cultivos in vitro de callos, células elicitadas y hojas de T. globosa. La inducción de los callos se originó a los 40 días, el mayor porcentaje se obtuvo con el tratamiento de picloram y polivinil pirrolidona. El análisis por Cromatografía Líquida de hojas de un extracto crudo en metanol registró la mayor acumulación...
Palavras-chave: 10-diacetil baccatina; Cefalomanina; Taxol; Anticáncer; Fitohormonas; Viabilidad celular; 10-diacetyl baccatin; Cephalomannine; Phytohormones; Cell viability; Botánica; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2036

Gravitropismo en inflorescencias de perrito  (Antirrhinum majus L.)
Provedor de dados: 32
Autores: Maki Díaz, Griselda.
El objetivo de este estudio fue determinar si los inhibidores de la biosíntesis de  etileno (AOA) y de la acción de auxinas (TIBA) eliminan o disminuyen la reacción  gravitrópica negativa de los tallos de Antirrhinum majus L. (“perrito”). Se utilizaron  tallos de perrito de tres cultivares de la serie Potomac (Rose, Royal, y White Ivory)  cultivados en los invernaderos del Colegio de Postgraduados, y un bloque adicional  fue adquirido comercialmente. Los tallos estuvieron sumergidos durante 12 horas en  las soluciones con AOA 1 mM, TIBA 400 µM y un grupo testigo en agua destilada,  luego fueron colocados en posición horizontal durante ocho horas. Durante ese  periodo se midió el ángulo de flexión de las inflorescencias con un transportador y en  intervalos...
Tipo: Tesis
Palavras-chave: Ángulo de flexión; AOA; Fitohormonas; TIBA; Maestría; Fruticultura; Bending angle; Phytohormones.
Ano: 2009
URL: http://hdl.handle.net/10521/1211

Gravitropismo en inflorescencias de perrito  (Antirrhinum majus L.)
Provedor de dados: 32
Autores: Maki Díaz, Griselda.
El objetivo de este estudio fue determinar si los inhibidores de la biosíntesis de  etileno (AOA) y de la acción de auxinas (TIBA) eliminan o disminuyen la reacción  gravitrópica negativa de los tallos de Antirrhinum majus L. (“perrito”). Se utilizaron  tallos de perrito de tres cultivares de la serie Potomac (Rose, Royal, y White Ivory)  cultivados en los invernaderos del Colegio de Postgraduados, y un bloque adicional  fue adquirido comercialmente. Los tallos estuvieron sumergidos durante 12 horas en  las soluciones con AOA 1 mM, TIBA 400 µM y un grupo testigo en agua destilada,  luego fueron colocados en posición horizontal durante ocho horas. Durante ese  periodo se midió el ángulo de flexión de las inflorescencias con un transportador y en  intervalos...
Palavras-chave: Ángulo de flexión; AOA; Fitohormonas; TIBA Bending angle; AOA; Phytohormones; TIBA.
Ano: 2012
URL: http://hdl.handle.net/10521/818

Gravitropismo en inflorescencias de perrito  (Antirrhinum majus L.)
Provedor de dados: 32
Autores: Maki Díaz, Griselda.
El objetivo de este estudio fue determinar si los inhibidores de la biosíntesis de  etileno (AOA) y de la acción de auxinas (TIBA) eliminan o disminuyen la reacción  gravitrópica negativa de los tallos de Antirrhinum majus L. (“perrito”). Se utilizaron  tallos de perrito de tres cultivares de la serie Potomac (Rose, Royal, y White Ivory)  cultivados en los invernaderos del Colegio de Postgraduados, y un bloque adicional  fue adquirido comercialmente. Los tallos estuvieron sumergidos durante 12 horas en  las soluciones con AOA 1 mM, TIBA 400 µM y un grupo testigo en agua destilada,  luego fueron colocados en posición horizontal durante ocho horas. Durante ese  periodo se midió el ángulo de flexión de las inflorescencias con un transportador y en  intervalos...
Palavras-chave: Ángulo de flexión; AOA; Fitohormonas; TIBA Bending angle; AOA; Phytohormones; TIBA.
Ano: 2012
URL: http://hdl.handle.net/10521/859

Development and production of sweet corn applied with biostimulant as seed treatment
Provedor de dados: 75
Autores: Lima,Sebastião F; Jesus,Anderson A; Vendruscolo,Eduardo P; Oliveira,Tabata Raissa; Andrade,Maria Gabriela O; Simon,Cátia Aparecida.
ABSTRACT Sweet corn has potential to increase farmer’s income. Thus, biostimulants may contribute to increase productivity of sweet corn, being indicated and used in various crops. The objective of this study was to evaluate the effects of applying biostimulant on sweet corn crops and to establish the ideal dose aiming to increase the crop’s agronomic characteristics. The experiment was installed in the municipality of Chapadão do Sul-MS and was conducted from November 15, 2012 to February 19, 2013. Treatments were composed of eight biostimulant doses (0.0, 4.0, 8.0, 12.0, 16.0, 20.0, 24.0 and 28.0 mL kg-1 of seeds), arranged in a randomized complete block design with four replicates. The responses of the variables to the best dose of biostimulant were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays convar. saccharata var. rugosa (sweet corn); Phytohormones; Growth regulators.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000100094

Curva de embebição e germinação de sementes de Passiflora setacea DC. (BRS Pérola do Cerrado) submetidas a distintos tratamentos pré-germinativos.
Provedor de dados: 14
Autores: SALOMAO, A. N.; JOSE, S. C. B. R.; RODRIGUES, A. F. O.
Tipo: Folhetos
Palavras-chave: Fitormonios; Phytohormones; Dormência; Dormência da Semente; Nitrato de Potássio; Maracujá; Potassium nitrate; Passion fruits; Dormancy; Seed dormancy.
Ano: 2023
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1152417

Maize response to inoculation with strains of plant growth-promoting bactéria
Provedor de dados: 91
Autores: Dartora,Janaína; Guimarães,Vandeir F.; Menezes,Cid R. J.; Freiberger,Mariângela B.; Castoldi,Gustavo; Gonçalves,Edilaine. D. V.
ABSTRACT The aim of this study was to evaluate the response of maize to inoculation with strains of plant growth-promoting bacteria (PGPB) in two cultivation years. The experiment was set in a randomized block design with four replicates in two cultivation years (2012/13 and 2013/14). The treatments consisted of PGPB inoculation: control (without N and without inoculation); 30 kg of N ha-1 at sowing (N1); 160 kg of N ha-1 (N1 + 130 kg of N ha-1 as top-dressing); N1 + A. brasilense, Ab-V5; N1 + A. brasilense, HM053; N1 + Azospirillum sp. L26; N1 + Azospirillum sp. L27; N1 + Enhydrobacter sp. 4331; N1 + Rhizobium sp. 8121. Basal stem diameter, plant height, leaf area, shoot dry matter and yield were evaluated. The strain of Rhizobium sp. 8121and the isolate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Azospirillum sp.; Rhizobium sp.; Phytohormones.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700606

Co-inoculation of Azospirillum brasilense and Herbaspirillum seropedicae in maize
Provedor de dados: 91
Autores: Dartora,Janaína; Marini,Deniele; Gonçalves,Edilaine. D. V.; Guimarães,Vandeir F.
ABSTRACT Bacteria from the genera Azospirillum and Herbaspirillum have been associated with increments in maize yield. The aim of this study was to evaluate the maize yield and nutritional content in response to inoculation with A. brasilense and H. seropediceae in association with nitrogen (N) fertilization. The experimental design was randomized blocks in a 4 x 5 factorial scheme, with four replicates. The treatments consisted of seed inoculation (control without N and inoculation, A. brasilense strain - AbV5, H. seropediceae strain - SMR1 and co-inoculation AbV5 + SMR1) and N doses (0, 40, 80, 120 and 160 kg ha-1). The following variables were evaluated: ear insertion height, ear length, ear diameter, number of rows per ear, number of grains per row,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L.; Growth-promoting bactéria; Phytohormones.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000600545

Fruit set and yield of apple trees cv. Gala treated with seaweed extract of ascophyllum nodosum and thidiazuron
Provedor de dados: 94
Autores: Ayub,Ricardo Antonio; Sousa,Anelise Marques de; Viencz,Thayna; Botelho,Renato Vasconcelos.
Abstract  The low effective fruiting is one of the biggest problems of apples’ production in Brazil and its main cause involves the process of pollination. The objective was to evaluate the fruit set and production of apple trees cv. Gala treated with extract of seaweed Ascophyllum nodosum and thidiazuron. The experiment was carried out during two cycles (2015/2016 and 2016/2017) in Porto Amazonas, State of Paraná, Brazil, with apple trees cv. Gala. The following treatments were applied at full bloom: thidiazuron at 10 and 15 mg L-1, Ascophyllum nodosum seaweed extract (Algamare®) at concentrations of 0.1, 0.2, 0.3, 0.4 and 0.6%. No treated plants were used as control. It was evaluated: fruit set, number of fruits, fruit weight, yield per plant, number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malus domestica; Plant regulators; Algae; Flowering; Phytohormones; Reguladores vegetais.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100201

Abscysic acid and compatibility of atemoya (Annona x atemoya Mabb.) grafted onto native species
Provedor de dados: 94
Autores: Baron,Daniel; Gimenez,Juliana Iassia; Ferreira,Gisela.
Abstract  Grafting is an effective technique used in the cultivation of commercial fruit species given the necessity to guarantee the genetic characteristics of productive species using selected clones. Although grafting is a common and widespread technique and phytohormones play a key role in the formation of tissues, the relationship between phytohormones, such as abscisic acid, and mechanisms of incompatibility is not yet well elucidated. Thus, the objective of this study was to establish whether a correlation exists between variations in abscisic acid and the compatibility of the atemoya (Annona x atemoya Mabb.) cultivar ‘Thompson’ grafted onto biribá [Annona mucosa (Bail.) H. Rainer], araticum-mirim [Annona emarginata (Schltdl.) H. Rainer ‘var....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytohormones; Rootstock; Post-grafting plant restoration.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000401003

Consortium of five fungal isolates conditioning root growth and arbuscular mycorrhiza in soybean, corn, and sugarcane
Provedor de dados: 42
Autores: FARIAS,CHRISTYAN P.; CARVALHO,RAFAEL C. DE; RESENDE,FELIPE M.L.; AZEVEDO,LUCAS C.B.
Abstract Plant growth and arbuscular mycorrhizal colonization were studied in sugarcane, corn and soybean by applying five plant growth promoting fungi: Beauveria bassiana, Metarhizium anisopliae, Pochonia chlamydosporia, Purpureocillium lilacinum, and Trichoderma asperella. Sugarcane, corn and soybean were grown in pots under two treatments: (1) inoculation with the fungal consortium and (2) control without inoculation. In the inoculated treatment, fungal spore suspension were applied to the seeds and shoots were sprayed every 28 days. Means were analyzed by analysis of variance and Tukey’s test at 5% probability level. The experiment was arranged in a completely randomized design, with six replications. Fungi consortium mediate root growth in soybean and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant growth promoting fungi; Entomopathogenic fungi; Arbuscular mycorrhizal; Phytohormones.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703649

Inhibitory effect of jasmonic acid and ethylene on epicotyl growth and bud induction in the maritime pine, Pinus pinaster Soland. in Ait
Provedor de dados: 47
Autores: Martin,Maria Teresa; Pedranzani,Hilda; García-Molinero,Patricia; Pando,Valentin; Sierra-de-Grado,Rosario.
Two independent parameters, epicotyl height (cm) and number of induced buds were studied on Pinus pinaster explants to analyse the effects of three phytohormones (6-benzylaminopurine, jasmonic acid, ethylene) which were combined or not in 11 different treatments. Epicotyle length diminished significantly in relation to the control medium (medium without exogen phytohormones) in presence of jasmonic acid, 6-benzylaminopurine or Ethephon (which is converted to ethylene in plants) in any of treatments. Concentrations of 100 &amp;#956;M of jasmonic acid and Ethephon had a greater inhibitory effect than the treatments with 10 &amp;#956;M. In addition to that, jasmonic acid was a stronger inhibitor than Ethephon in any of the tried combinations. There were no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micropropagation; Phytohormones; Plant growth regulators; 6-benzylaminopurine; In vitro plant culture.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452009000300002

Towards the micropropagation of Euphorbia cyathophora Murray: a wild plant species with medicinal and ornamental potential
Provedor de dados: 65
Autores: Rodríguez-Elizalde,María de los Ángeles; Ferrera-Cerrato,Ronald; Hernández,Mateo Vargas; León,María Teresa Beryl Colinas y; González,Alejandro Manzo; Alarcón,Alejandro.
ABSTRACT:  Euphorbia cyathophora Murray is a plant species with medicinal and ornamental potential but whose in vitro propagation is unknown. Two experiments were performed to know 1) the effect of light (WL) at 25±2 °C and 20 μmol m-2 s-1 luminous intensity, or darkness at 20±2 °C, for the first 20 days and subsequent placement in light (DKL) as previously described, and 2) the best combination of plant growth regulators: benzyl amino purine (BAP), kynetin (KIN), 2-isopentenyl adenine (2iP) and thidiazuron (TDZ) in combination with naphthaleneacetic acid (NAA) and the effect of both light conditions. The DKL treatment did not promote the growth of leaves, cotyledons, or plantlet height; in contrast, WL produced a more developed root system with early...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euphorbiaceae; In vitro culture; Phytohormones; Light conditions.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900402