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| Registros recuperados: 66 | |
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| Roesler,Eduardo André; Manfroi,Ernandes; Morás,Andréa; Didoné,Dielli Aparecida; Grando,Magali Ferrari; Lau,Elene Yamazaki. |
| ABSTRACT: The availability of an efficient protocol for in vitro regeneration is imperative for genetic transformation. Using genotypes adapted to the target region as a transgenic platform accelerates the development of cultivars. Therefore, this study aimed to adapt an in vitro regeneration protocol for Brazilian wheat genotypes. For this purpose, the in vitro regeneration capacity of immature embryos from six Brazilian wheat genotypes using two protocols of regeneration of somatic embryos was analysed. Furthermore, combinations of 2,4-D and picloram in the callus induction medium were tested in order to improve regeneration efficiency. Genotypes with higher regeneration efficiency were BR18-Terena and PF020037, yielding 0.42 and 1.13 shoots per explant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Tissue culture; Growth regulators. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100402 |
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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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| VALE, S. M. L. S. do; SIVIERO, A.; LESSA, L. S.; MATTAR, E. P. L.; VALE, P. A. A. do. |
| Endophytic microorganisms have a wide genetic diversity, being very useful for agriculture, for producing growth regulators and making nutrients available to plants. In this context, this research aimed to isolate and characterize endophytic bacteria from bamboo Guadua sp., in order to evaluate the use of these microorganisms in promoting plant growth in yam plants (Dioscorea rotundata Poir). For this, the macromorphological characteristics of bacterial colonies were studied: shape, borders, consistency, color, brightness. Micromorphological analysis was performed using the Gram method. Biological tests of phosphate solubilization, biological nitrogen fixation and indole acetic acid production were carried out, where the bacteria with the best results were... |
| Tipo: Artigo de periódico |
Palavras-chave: Bactérias endofíticas; Endophytic bacteria; Características macromorfológicas; Macromorphological traits; Bambúes; Reguladores del crecimiento; Cultivos de viveros; Rendimiento de los cultivos; Parque Zoobotânico; Lago do Silêncio; Rio Branco (AC); Sena Madureira (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Bambu; Regulador de Crescimento; Inhame; Viveiro; Rendimento; Bamboos; Guadua; Growth regulators; Dioscorea rotundata; Nursery crops; Crop yield. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126452 |
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| ARAÚJO, M. da C. da R.; CHAGAS, E. A.; VENDRAME, W.; RIBEIRO, M. I. G.; MOURA, E. A. de; TAVEIRA, D. L. L.; CHAGAS, P. C.; GRIGIO, M. L.. |
| Caçari is a fruit tree that is native to the Amazon region of Brazil. The fruit is considered to have the highest vitamin C content of any edible fruit (13.757 mg 100 g-1 dry weight). The objective of this study was to evaluate the effects of 2,4-D and 6-BAP alone or in combination on in vitro callus induction and pro-embryogenic mass formation in caçari stem segments in different culture media as a precursor for caçari micropropagation. The experiment consisted of two culture media (MS and WPM) and combinations of four concentrations of 2,4-D (0, 1, 2 and 4 mg L-1) and BAP (0, 0.25, 0.5 and 1 mg L-1). The results showed that the highest percentage of callus formation (99%) was obtained in WPM supplemented with 4 mg L-1, 2,4-D and 1 mg L-1 BAP, and this... |
| Tipo: Artigo de periódico |
Palavras-chave: Camu-camu; Somatic embryogenesis; Growth regulators. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139460 |
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| FRASCA, L. L. de M.; NASCENTE, A. S.; LANNA, A. C.; CARVALHO, M. da C. S.. |
| O feijão-comum apresenta grande importância econômica e social para a população brasileira. Dentre as tecnologias contributivas para alta produtividade das culturas estão os promotores de crescimento. Objetivou-se determinar o efeito dessas substâncias, aplicadas via semente ou via semente e folha, sobre o crescimento e desenvolvimento de plantas de feijoeiro de ciclo superprecoce, cultivar FC-104, quanto aos indicadores de qualidade fisiológica (trocas gasosas e teor de nutrientes em folhas e grãos) e agronômica (produtividade e componentes de produção). O delineamento experimental foi o de blocos casualizados, com 13 tratamentos e 4 repetições. Os tratamentos foram constituídos pelos promotores de crescimento: (I) Complexo de micronutrientes, (II)... |
| Tipo: Artigo de periódico |
Palavras-chave: Feijão; Phaseolus Vulgaris; Regulador de Crescimento; Produtividade; Cromatografia Gasosa; Biomassa; Beans; Economic productivity; Dry matter content; Biomass; Growth regulators. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104856 |
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| Lima,Juliana D; Santa Rosa,Jéssica; Gomes,Eduardo N; Rozane,Danilo E; Modenese-Gorla da Silva,Silvia H. |
| The aim of this study was to analyze the effect of cytokinin and gibberellin on the characteristics of banana fruits (Musa spp. AAA, cv. Nanica) as a function of the formation period and position in the bunch. A completely randomized, 2x5 factorial design was adopted consisting of two bunch development periods (summer and winter) and five treatments as well as the same arrangement in a split plot with the 2×5 factorial arrangement as the plot and the position of the hand in the bunch (basal, middle and apical) as the subplot. Treatments consisted of spraying twice with either water, 150 mg L-1 of kinetin, 200 mg L-1 of gibberellic acid, 100 mg L-1 of kinetin plus 200 mg L-1 of gibberellic acid or 200 mgL-1 of kinetin plus 200 mg L-1 of gibberellic acid,... |
| Tipo: Journal article |
Palavras-chave: Growth regulators; Intra-bunch variability; Source-sink relationship. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200005 |
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| INOUE, R. C.; ONO, E. O.; BARBOSA, M. A. G.; QUEIROZ, M. A. de; TERAO, D.; WEBER, R. E. H.; RODRIGUES, J. D.. |
| Este trabalho objetivou estudar a produção de mudas dos cultivares Niagara Rosada no ambiente de Botucatu, SP, Isabel Precoce e Thompson Seedless enxertadas sobre o porta-enxerto IAC 766, nos ambientes de Petrolina, PE e Juazeiro, BA utilizando-se os reguladores vegetais, poliaminas e citocininas (CK), e fungicida (piraclostrobina). Os tratamentos utilizados foram: T1- Testemunha (água); T2? Putrescina (Put, 2mM); T3? Citocinina (CK, 6-BA 20 mg L-1); T4? Piraclostrobina (Pira, 200 g 100 L-1); T5- Put + CK; T6- Put + Pira; T7- Pira + CK; T8- CKvia foliar (20 mg L-1) +via solo (40 mg L-1), com aplicações realizadas uma vez por semana, num total de três aplicações. Para verificar o efeito dos tratamentos avaliou-se a taxa de crescimento, o número de folhas,... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Poliaminas; 6-benzilaminopurina; Estrobirulinas; Crescimento vegetativo; Efeito fisiológico; Interação genótipo x ambiente; 6-benzylaminopurine; Strobilurins; Physiological effect; Uva; Muda; Estimulante de Crescimento Vegetal; Grapes; Growth regulators; Vegetative growth; Polyamines; Genotype-environment interaction. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128870 |
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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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| 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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| SILVA, W. O. da; SIMOES, W. L.; SILVA, J. S. da; REIS, D. S.; SILVA, J. A. B. da. |
| O objetivo deste trabalho foi avaliar os efeitos das lâminas de irrigação e bioestimulante na produtividade e eficiência do uso da água do meloeiro (Cucumis melo L.) híbrido Juazeiro no Submédio do Vale do São Francisco. O experimento foi conduzido no campo experimental da Embrapa Semiárido, localizado na cidade de Juazeiro, BA. O delineamento experimental foi o de blocos ao acaso, com parcelas subsubdivididas, num fatorial 4x5, sendo qua- tro lâminas de irrigação (60%, 80%, 100% e 120% da evapotranspiração da cultura) e cinco doses de bioestimulante comercial (ácido 4-indol-3ilbutirico 0,05g L-1, ácido giberélico 0,05g L-1 e cinetina 0,09 g L-1) (0; 0,6; 1,2; 2,4; e 4,8 L ha-1), com quatro repetições. A efi ciência de uso da água foi calculada para todos... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Manejo da água; Melão; Irrigação; Regulador de Crescimento; Ácido Giberélico; Melons; Growth regulators. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114708 |
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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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| Registros recuperados: 66 | |
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