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| Registros recuperados: 36 | |
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| Argote Hernández, Cajeme Nicolás. |
| Actualmente en México la principal frutilla que se exporta en fresco es la zarzamora ‘Tupy’ (Rubus spp.). El Estado de Michoacán produce más de 90% del total a nivel nacional. Uno de los problemas de producción es el necrosamiento de las yemas florales. No existen reportes documentados sobre el necrosamiento de las yemas en zarzamora. Se diseñó un experimento con zarzamora ´Tupy´ en Los Reyes, Michoacán para diagnosticar las posibles interacciones causales del necrosamiento de yemas. Se probaron cinco fechas de forzado (defoliación), tres tratamientos de dosis y formas variables de aplicación de thidiazurón (TDZ) y ácido giberélico (AG3) en pre y post defoliación y dos dosis de aplicación edáfica de nitrógeno (350 a 500 unidades/ha.). La primera fecha... |
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Palavras-chave: Rubus; Frutillas; Reguladores de crecimiento; Rendimiento; Fruticultura; Maestría; Small fruits; Growth regulators; Yield. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1788 |
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| Lakshmanan,Venkatachalam; Reddampalli Venkataramareddy,Sreedhar; Neelwarne,Bhagyalakshmi. |
| A large number of micropropagated plantlets of banana, Musa acuminata var. Nanjanagudu Rasabale (NR), that were developed from axillary shoot bud explants over 10 years ago were screened for genetic variation, if any, using RAPD (Random Amplified Polymorphic DNA) and ISSR (Inter-Simple Sequence Repeats) markers. Of the 4000 in vitro plantlets, 11 were used for screening that involved shoot cultures with distinct variation in morphological characteristics (morphotypes). Similarly, the mother maintained in the field was also subjected for genetic analysis. Out of the 50 RAPD and 25 ISSR primers screened, 30 RAPD and 5 ISSR primers produced totally 424 clear, distinct and reproducible band classes resulting in a total of 5088 bands where the banding patterns... |
| Tipo: Journal article |
Palavras-chave: Growth regulators; Musa; Protocol; Shoot cultures; Somaclonal variation. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000100010 |
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| Santa-Rosa,Sandra; Souza,Fernanda VD; Vidal,Ádila M; Ledo,Carlos Alberto da S; Santana,José RF de. |
| Aechmea blanchetiana and Aechmea distichantha are Brazilian native bromeliads with great ornamental value, although none of the species are produced commercially. Therefore, market demands are met through nature predatory exploitation. This study intended to (1) evaluate the in vitro seed germination of A. blanchetiana and A. distichantha and (2) establish micropropagation protocols for both species, aiming at producing plantlets for the market, as well as to germplasm in vitro conservation. Germination experiments were carried out in completely randomized designs with two treatments (presence and absence of light) and seven and eight replications respectively for A. blanchetiana and A. distichantha. In vitro seedlings, produced under light conditions,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bromeliaceae; Tissue culture; In vitro multiplication rate; Growth regulators. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000100018 |
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| 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 |
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| Poot-Poot,Wilberth A; Delgado-Martínez,Rafael; Castro-Nava,Sergio; Segura-Martínez,Ma Teresa; Carreón-Pérez,Alejandro; Hernández-Martínez,Jesús Guillermo. |
| ABSTRACT The aim of this study was to evaluate the effect of salicylic acid (SA) application on pre-transplant acclimatization of native populations of tomato. SA is a growth regulator that modifies plant growth and development by inducing changes in cell processes, physiology and morphology. Five populations of native tomato were sown in polystyrene trays. Peat moss was used as substrate and plants were maintained at field capacity continuously. After emergence, seedlings were applied during three weeks with different concentration of SA (0.0, 0.01, 0.1, 0.5 and 1.0 μM). A completely random experimental design was used with five replications per treatment. The growth parameters evaluated were height, stem diameter, number of leaves, hypocotyl length,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Stress tolerance; Chlorophyll; Carotenoids; Growth regulators. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400480 |
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| NUNES, B. T. G.; MELO, N. F. de; LEAO, P. C. de S.. |
| O presente estudo teve por objetivo avaliar a aplicação de regulares de crescimento e da época de coleta e inoculação in vitro de óvulos de videira em diferentes cruzamentos sobre a percentagem e número de embriões resgatados e germinados. Dois experimentos foram realizados na Embrapa Semiárido, Petrolina, PE. No primeiro experimento os tratamentos foram representados pelos reguladores de crescimento ANA, BAP, GA3 e a combinação ANA + BAP e BAP + GA3 aplicados aos 10 dias antes da floração e 7 dias após a polinização. No segundo experimento, foram avaliadas três épocas de coleta e inoculação dos óvulos (6, 7 e 8 semanas após a polinização). Os resultados obtidos permitem concluir que as respostas variam em função dos genótipos parentais, mas a pulverização... |
| Tipo: Parte de livro |
Palavras-chave: Uva sem semente; Inoculação in vitro de óvulos de videira; Melhoramento Genético Vegetal; Uva; Biotecnologia; Regulador de Crescimento; Grapes; Biotechnology; Growth regulators. |
| Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144433 |
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| MOUCO, M. A. do C.; LIMA, M. A. C. de. |
| Este trabalho foi desenvolvido com o objetivo de avaliar o efeito de reguladores vegetais no manejo da produção e qualidade de frutos de abacateiro (Persea americana) nas cultivares Fortuna, Geada e Quintal. Foram avaliados o efeito da aplicação de dois reguladores vegetais, cloreto de chlormequat e uniconazole, em doses de 1,5 g i.a. planta -1 e 3,0 g i.a. planta -1, na frutificação efetiva, produção e qualidade dos frutos recém-colhidos e depois de completarem o amadurecimento. Pôde-se observar incremento no número de frutos com a aplicação de cloreto de chlormequat, independentemente da dose, no abacateiro Geada, e de cloreto de chlormequat ou de uniconazole na dose mais alta, 3,0 g i.a. planta -1, na cultivar Quintal. O amadurecimento de frutos das... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Produção de frutas; Retardantes vegetais; Cloreto de clormequat; Crescimento vegetativo.; Abacate; Pós-colheita; Fisiologia; Persea Americana.; Growth regulators; Fruit quality; Uniconazole; Avocados.. |
| Ano: 2014 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1012747 |
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| Reyes, R.; Fraga, I.; Galindo, J.; Ramos, D.. |
| An experiment totally at random in order to know the effect of alfalfa (Medicago sativa) in pink shrimp (Farfantepenaeus notialis) postlarvae was carried out. Initial medium weight was 0.07 ± 0.003 g. Four isoprotein diets with 0; 0.5; 1.0 and 2.0% with different levels of alfalfa meal were tested. Best results in weight gain, protein efficiency and Feed Conversion Factor were obtained with the formula containing highest percentage of this leguminous (2.0%). It was recommended to continue the nutrition studies using this row material as well as to determine its optimum level of addition. |
| Tipo: Proceedings Paper |
Palavras-chave: Shrimp culture; Feeding experiments; Balanced diets; Growth regulators. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1952 |
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| Carra,Bruno; Fachinello,José Carlos; Abreu,Everton Sozo de; Pasa,Mateus da Silveira; Spagnol,Daniel; Giovanaz,Marcos Antônio; Silva,Carina Pereira da. |
| Abstract: The objective of this work was to evaluate the effect of prohexadione calcium (P-Ca) and root pruning (RP) on the control of the vegetative growth and on fruit production and quality of 'Shinseiki' pear trees, under the climatic conditions of Southern Brazil. The experiment was conducted during the 2013/2014 and 2014/2015 crop seasons, in a 15-year-old orchard of 'Shinseiki' pear trees, trained to a central-leader system, with a 2x5 m spacing between plants, grafted onto Pyrus calleryana rootstock. The experiment was carried out in a randomized complete block design, with six treatments and four replicate. The treatments consisted of the control (without P-Ca application or RP), two P-Ca rates (300 and 600 mg L-1), two root pruning intensities... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pyrus pyrifolia; Fruit quality; Growth regulators; High-density orchard; Vegetative vigor; Yield components. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000300177 |
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| Silva,Ricardo de A.; Santos,Jerffson L.; Oliveira,Luan S.; Soares,Mauricio R. S.; Santos,Saad M. S. dos. |
| ABSTRACT Biostimulants are used in cotton (Gossypium hirsutum L.) to balance vegetative and reproductive growth as well as to increase cotton seed yield and fiber quality. Therefore, in order to study the efficiency of seed treatment with biostimulants, nutrition, production and technological quality for the cotton fiber, a field experiment was installed. The study was conducted at the Alvorada farm research field, in Luis Eduardo Magalhães municipality - BA. The experiment was arranged in a completely randomized block design with four replicates and five treatments (control group, untreated group, Booster®, Stimulate®, Improver® and Biozyme®). Leaf contents of nutrients, yield and technological quality of the fiber were evaluated. The results showed that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth regulators; Yield; Foliar nutrition; Gossypium hirsutum L.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201062 |
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| Moura,Elisa Ferreira; Motoike,Sérgio Yoshimitsu. |
| The biotechnological techniques may help solve many problems of guava culture, such as the high perishability of fruits. Somatic embryogenesis can generate highly multiplicative cell cultures and with high regenerative potential, serving as basis for genetic transformation. The aim of this work was to obtain somatic embryogenesis of guava (Psidium guajava L.) cv. Paluma. Immature seeds were used, and they were inoculated in MS environment containing 400 mg L-1 of L-glutamine, 100 mg L-1 myo-inositol, 60 g L-1 sucrose, 100 mg L-1 ascorbic acid and supplemented with different types and concentrations of growth regulators. Embryogenic callus appeared after 37 days of culture in an environment containing 1.0 mg L-1 2.4-D + 2.0 mg L-1 2-ip, in 7% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tissue culture; Growth regulators; Myrtaceae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452009000200027 |
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| Ledo,Ana da Silva; Lameira,Osmar Alves; Benbadis,Abdellatif Kemaleddine; Menezes,Ilmarina Campos de; Oliveira,Maria do Socorro Padilha de; Medeiros Filho,Sebastião. |
| The aim of this work was to study the morphogenetic responses of zygotic embryos of açai palm (Euterpe oleracea Mart.) submitted to several conditions of in vitro culture. Several research experiments were conducted, in laboratory, using vegetable material collected from açai palm plants at Embrapa Amazon Oriental, Belém-PA, Brazil. It was possible to verify the expression of a direct, repetitive and no-synchronized model of somatic embryogenesis in mature zygotic embryos cultivated in primary MS medium supplemented with 2,4-D (339.36 muM) and transferred to a secondary MS medium in the presence of NAA (0.537 muM) and 2iP (12.30 muM). The conversion of somatic embryos into seedlings was reached after 210 days with the transfer of the cultures to a third... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Açai palm; Growth regulators; Micropropagation; Tissue culture. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000300004 |
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| Soethe,Cristina; Steffens,Cristiano André; Hawerroth,Fernando José; Amarante,Cassandro Vidal Talamini do; Heinzen,Angélica Schmitz; Stanger,Mayara Cristiana. |
| Abstract The aim of this work was to evaluate the effect of single and multiple pre-harvest spray aminoethoxyvinylglycine (AVG) applications with or without ethephon, in ‘Baigent’ apple trees cultivated under anti-hail screen and harvesting date on fruit quality after storage. The experiment was conducted in a commercial orchard in the municipality of Vacaria/RS, in the 2014/15 and 2015/16 harvests. Treatments consisted of: control (plants sprayed with water); AVG (125 mg L-1, 30 days before the predicted harvest date; BPHD); ethephon (120 mg L-1, seven BPHD); AVG (62.5 mg L-1 + 62.5 mg L-1, 30 and 20 BPHD); AVG (62.5 mg L-1 + 62.5 mg L-1, 30 and 20 BPHD) + ethephon (120 mg L-1, seven BPHD). Fruits of all treatments were harvested at commercial harvest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica; Growth regulators; Ethylene; Cold storage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000300302 |
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| FAGUNDES,EVERLAN; PETRI,JOSÉ LUIZ; ARGENTA,LUIZ CARLOS; HAWERROTH,FERNANDO JOSÉ; COUTO,MARCELO. |
| ABSTRACT ‘Gala’ apple trees have low fruit set in restrictive pollination situations, being an obstacle to the achievement of high production rates in orchards in southern Brazil, which can be minimized by the use of growth regulators. The aim of this study was to evaluate the effect of thidiazuron concentrations in ‘Royal Gala’ apple fruiting and production, grown in mild winter conditions. The experiment was conducted during the 2011/2012, 2012/2013 and 2013/2014 crop years in Fraiburgo, SC, on ‘Royal Gala’ apple trees in Marubakaido rootstock M9 with filter. In all evaluation cycles, the experimental design was a randomized block with factorial arrangement (6x2) with six TDZ concentrations and two application forms, with six replicates, and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus domestica Borkh; Growth regulators; Cytokinin; Fruit set. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000400701 |
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| Guadagnin, Cristina Mayumi Ide; Schuch, Luis Osmar Braga; Venske, Eduardo; Zimmer, Paulo Dejalma; Aumonde, Tiago Zanatta. |
| This study aimed to evaluate the early growth stages of irrigated rice (Oryza sativa L.) seedlings from cultivars SCS-112, BRS-7 Taim, BR IRGA 410 and IRGA 417, under three different temperatures, i.e. 15, 20 and 25 °C, as a result of seed imbibition in a gibberellic acid (GA3) solution at concentrations of zero, 150, 300, 450, 600 and 750 mg L-1. The lengths of the shoot and the primary root of seedlings were recorded at three, seven and 21 days from sowings on germination paper. Interactions between the main factors were observed for all the response variables. Rice cultivars have differential sensitivity to variation in the concentration of gibberellic acid on seed treatment according to the temperature and the time of evaluation. Cultivar BRS-7 Taim... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental stress; Growth regulators; Oryza sativa L.; Seed vigor.. |
| Ano: 2017 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14299 |
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| Registros recuperados: 36 | |
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