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Abscisic acid as a potential chemical thinner for peach PAB
Giovanaz,Marcos Antônio; Spagnol,Daniel; Bartz,Josiane; Pasa,Mateus da Silveira; Chaves,Fabio Clasen; Fachinello,José Carlos.
Abstract:The objective of this work was to evaluate the effect of abscisic acid, applied at different rates and different fruit developmental stages, on the thinning of 'Chiripá' peach. Abscisic acid (ABA) at 500 mg L-1 was applied at three stages of fruit development based on lignin deposition: stage 1, at 24 days after full bloom (DAFB); stage 2, at 40 DAFB; and stage 3, at 52 DAFB. Only ABA application at stage 2 - 40 DAFB - reduced fruit set and the number of fruit per plant. Three ABA concentrations (350, 500, and 750 mg L-1) were then applied at 40 DAFB. All rates increased fruit ethylene production and fruit abscission.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abscission; Pit hardening; Plant growth regulators; Plant hormones; Stone fruit.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001000989
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Accumulation of organic solutes and enzymatic activity in cut roses (Rosaceae) cultivated with physiological effect products in the Sub- Middle São Francisco River Valley Ciência Rural
Silva,Maria de Lourdes Neres da; Santos,Mariana Correia; Barbosa,Mayara Suzanne de Melo; Sabino,João Henrique Ferreira; Ribeiro,Hugo Leonardo Coelho; Ramos,Anamaria Ribeiro Pereira; Silva,Marcelle Almeida da; Beckmann-Cavalcante,Márkilla Zunete.
ABSTRACT: The aim of the present study was to evaluate the accumulation of carbohydrates, protein, and proline as well as the activity of the antioxidant enzymes superoxide dismutase and catalase in the Ambiance cultivar of cut rose plants grown with the application of physiological effect products in the Sub-Middle São Francisco River Valley in Brazil. The experiment was performed under a mesh screen with 50% shading. The experimental design used randomized blocks with four repetitions and six treatments: T1) control (water); T2) boscalid; T3) pyraclostrobin; T4) boscalid + pyraclostrobin (T2 + T3); T5) fluxapyroxad + pyraclostrobin; T6) plant growth regulators 4-(indol-3-yl) butyric acid (IBA) + gibberellic acid (GA3) + kinetin; these treatments were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rosa spp.; Strobilurins; Plant growth regulators; Carbohydrates; Antioxidant enzymes..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200401
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Ácido indolbutírico e substratos no desenvolvimento de estacas de umbuzeiro em três estádios fenológicos. Repositório Alice
ATAÍDE, E. M.; SILVA, M. de S.; SOUZA, J. M. A.; BASTOS, D. C..
As frutas nativas passaram a ser vista como excelente alternativa para os agricultores das diversas regiões do país, principalmente, do semiárido nordestino. Contudo, observa-se que muitas espécies do bioma caatinga sofrem devastação, especialmente o umbuzeiro. Portanto, é importante difundir tecnologias com vista a preservação destas espécies, especialmente voltadas para produção de mudas pelo método vegetativo, que possibilitará maior uniformidade e produtividade das espécies nativas. Desta forma, objetivou-se neste trabalho avaliar o uso de ácido indolbutirico e diferentes substratos e estádios fenológicos no enraizamento de estacas de umbuzeiro. O experimento foi conduzido na Unidade Acadêmica de Serra Talhada em condições em viveiro telado com 50% de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Auxina; Regulador vegetal; Umbu; Regulador de crescimento; Bioma Caatinga; Planta nativa; Spondias tuberosa; Plant growth regulators.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1087953
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Anatomia do caule de Lycopersicon Esculentum Mill., submetido a diferentes tratamentos com reguladores vegetais BABT
Martins,Maria Bernadete Gonçalves; Castro,Paulo Roberto de Camargo e.
The effects of plant growth regulators GA3 50 mg. L-1, NAA 100 mg. L-1, CCC 1500 mg.L-1 and SADH 3000 mg.L-1 on stem anatomy of Lycopersicon esculentum Mill cv. Ângela Gigante were studied. Two sets of experiments were carried out in greenhouse during two separte periods. Anatomical studies , revealed that growth promotors induced increased xylem thickness and increased the number of tracheary elements while the growth retardants decreased xylem thickness and induced fiber formation.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth regulators; Anatomy; Stem; Lycopersicon esculentum.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000200014
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Applied aspects of pineapple flowering Bragantia
Cunha,Getúlio Augusto Pinto da.
Flowering is an amazing, integrated and complex process of multifatorial control, which due to its great importance for agriculture has been extensively studied worldwide. Pineapple is one of the main crops on which many research works about this subject have been carried out, and it was the first one to have artificially induced flowering. However, even with all those studies, pineapple flowering is not yet characterized in many aspects. The main point for the comprehension of the physiologic aspects of flowering initiation is the identification of the factors involved in the differentiation of the apical meristem into floral primordium, as well as how these factors exert their action. This work aimed to describe the flowering process of pineapple plants,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ananas comosus var. comosus; Inflorescence; Flowering control; Plant growth regulators.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000400001
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Aspectos tecnológicos de sorgo-sacarino submetido à aplicação de maturadores químicos. Repositório Alice
VIANA, R. da S.; MAY, A.; MATEUS, G. P.; RODRIGUES NETO, A. D.; LOPES, P. R. M..
Resumo:O sorgo-sacarino apresentou um crescimento de interesse para cultivo em área de reformas de canaviais associadas a usinas sucroenergéticas em função da possibilidade de produção de etanol, na abertura da safra da cana-de-açúcar, sendo seu ponto de colheita normalmente identificado pela fenologia da planta, após o florescimento da cultura. A antecipação do momento de colheita e a possibilidade de acúmulo de açúcares no colmo, com a utilização de maturadores químicos, podem ser uma alternativa importante para a cultura, como ocorre com a cana-de-açúcar. Este trabalho teve como objetivo avaliar os aspectos tecnoló­gicos do sorgo-sacarino quando aplicados diferentes maturadores químicos. O delineamento experimental utilizado foi o em blocos...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Estresse; Reguladores vegetais; Maturation; Plant growth regulators; Sorghum bicolor; Stress; Sorgo sacarino; Regulador de crescimento; Maturação; Sorghum bicolor; Plant growth substances.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1081735
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CHANGES IN THE CHARACTERISTICS OF ‘PRATA’ BANANA TREATED WITH CYTOKININ AND GIBBERELLIN Rev. Bras. Frutic.
LIMA,JULIANA DOMINGUES; ROSA,JÉSSICA SANTA; ROZANE,DANILO EDUARDO; GOMES,EDUARDO NARDINI; SILVA,SILVIA HELENA MODENESE GORLA DA.
ABSTRACT Plant growth regulators can influence fruit yield and quality. This study aimed to evaluate the effect of cytokinin and gibberelin on the agronomic and physicochemical characteristics of banana fruits cv. ‘Prata’ (Musa spp. AAB), according to the formation period and position in the bunch. The experiment was conducted in a completely randomized 2 x 5 factorial design, two periods of bunch development (summer and winter), five treatments and ten replicates. To study the effect of position in the bunch, split plot was adopted, considering in the plot, 2 x 5 factorial and in subplots, hand 1, hand 4 and last hand. Treatments consisted of 2 pulverizations with water, 150 mg L-1 cytokinin, 200 mg L-1 of gibberellic acid, 100 mg L-1 of cytokinin plus...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Musa spp.; Plant growth regulators; Yield and quality.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300602
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Diversity of phytohormones within microalgae. Repositório Alice
MIRANDA, C. H. B.; CAVALCANTI, C. G. C.; CEREIJO. C. R.; ABDELNUR, P. V.; COSTA, P. P. K. G..
bitstream/item/202241/1/CESAR-Book-of-Abstracts-Hohenheim-2019.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Phytochemicals; Plant growth regulators; Biofertilizers; Biomass production.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112394
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EARLY SPRING APPLICATION OF AMINOETHOXYVINILGLYCINE (AVG) INCREASES FRUIT SET AND YIELD OF ‘ROCHA’ PEARS Rev. Bras. Frutic.
PASA,MATEUS DA SILVEIRA; CARRA,BRUNO; SILVA,CARINA PEREIRA DA; CIOTTA,MARLISE NARA; BRIGHENTI,ALBERTO FONTANELLA; PEREIRA,ADÍLSON JOSÉ.
ABSTRACT The low fruit set is one of the main factors leading to poor yield of pear orchards in Brazil. Ethylene is associated with abscission of flowers and fruitlets. Then, the application of ethylene synthesis inhibitors, such as AVG, is a potential tool to increase fruit set of pears. The objective of this study was to evaluate the effect of AVG, sprayed at different rates and timings, on fruit set, yield and fruit quality of ‘Rocha’ pear. The study was performed in a commercial orchard located in the municipality of São Joaquim, SC, during the growing seasons of 2014/2015 and 2015/2016. Plant material consisted of ‘Rocha’ pear trees grafted on quince rootstock ‘BA29’. AVG was tested at different rates (60 mg L-1 and 80 mg L-1) and timings [full...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyrus communis; Plant growth regulators; Ethylene inhibitor; Fruit drop; Fruit quality.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000400707
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Effect of Chemical Thinning Season Using Metamitron on Peaches 'Sensação' Quality. Repositório Alice
FARIAS, R. de. M.; BARRETO, C. F.; SCHIAVON, A. V.; HELLWING, C. G.; MARTINS, C. R.; MALGARIM, M. B.; MELLO-FARIAS, P. C..
bitstream/item/171568/1/Carlos-Roberto-Martins-1962017JEAI38522-1.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Prunus persica; Hysico-chemical; Phytochemical; Plant growth regulators.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1086146
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Effect of gibberellic acid and the biostimulant stimulate® on the initial growth of tamarind Rev. Bras. Frutic.
Dantas,Ana Cristina Vello Loyola; Queiroz,João Mariano de Oliveira; Vieira,Elvis Lima; Almeida,Vanessa de Oliveira.
Plant growth regulators and biostimulants have been used as an agronomic technique to optimize the production of seedlings in various crops. This study aimed to evaluate the influence of gibberellic acid and the biostimulant Stimulate® on the initial growth of tamarind (Tamarindus indica L.). The experiments were conducted in a nursery with 50% shading, in a randomized block design with five replications and five plants per plot. Thirty eight days after sowing, the leaves were sprayed seven times a day with 0.0 (control), 0.8, 1.6, 2.4 and 3.2 mL of gibberellic acid L-1 aqueous solution and with 0.0 (control), 6.0,12.0, 18.0, and 24.0 mL Stimulate® L-1 aqueous solution. Stem diameter (SD), plant height (PH), longest root length (LRL), shoot dry mass (SDM),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tamarindus indica L.; Plant growth regulators; Seedling production.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000100004
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Effect of picloram, additives and plant growth regulators on somatic embryogenesis of Phyla nodiflora (L.) Greene BABT
Ahmed,Abdul Bakrudeen Ali; Rao,Adhikarla Suryanarayana; Rao,Mandali Venkateswara; Taha,Rosna Mat.
The present study describes the plant regeneration via somatic embryogenesis in suspension culture derived from the leaf and stem explants of Phyla nodiflora. The medium type, plant growth regulators, complex extract (coconut milk and malt extract) and anti-oxidant (activated charcoal, ascorbic acid, Polyvinylpyrrolidone and citric acid) markedly influenced the embryo regeneration of P. nodiflora. MS with 2,4-D and activated charcoal (10 mg/L) gave the highest stimulation of embryogenic callus growth. Optimized callus was transfered into suspension culture, which showed the globular, heart shaped embryos in MS with 2,4-D + BA + picloram (0.1 mg/L), coconut milk (10 ml/L), citric acid (100 mg/L) on 6th subcultures. Further development stages such as torpedo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Somatic embryogenesis (SEs); Picloram; Ascorbic acid; Coconut milk; Plant growth regulators; Murashige and Skoog medium.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100002
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Effect of plant growth regulators on oil yield and biodiesel production of safflower (Carthamus tinctorius L.) Braz. J. Plant Physiol.
Ullah,Faizan; Bano,Asghari.
The aim of the present investigation was to determine the effect of plant growth regulators viz., kinetin, chlorocholine chloride (CCC) and salicylic acid (SA) on achene yield and oil quality of safflower (Carthamus tinctorius L.) cv. Thori pertaining to biodiesel production. The growth regulators were applied at 10-5M as foliar spray during flowering (140 days after sowing). Kinetin was highly effective in increasing achene yield, 100 achene weight and oil refractive index. Maximum achene oil content was found in CCC treatment. Kinetin and CCC significantly decreased oil acid value, free fatty acid content (% oleic acid) and specific gravity but increased oil pH. Kinetin was highly effective in increasing oleic acid (C18:1) but decreased the content of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiesel; Plant growth regulators; Safflower; Oil quality.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000100005
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Effect of salicylic acid and silver nitrate on rutin production by Hyptis marrubioides cultured in vitro Ciência Rural
Pedroso,Rita Cássia Nascimento; Branquinho,Núbia Angélica de Ávila; Hara,Alessandra Cristina Boffino de Almeida Monteiro; Silva,Fabiano Guimarães; Kellner Filho,Luis Claudio; Silva,Marcio Luís Andrade; Cunha,Wilson Roberto; Pauletti,Patricia Mendonça; Januário,Ana Helena.
ABSTRACT: Hyptis marrubioides (Lamiaceae) is a medicinal plant that is native from Brazilian Cerrado. In vitro propagation techniques make use of elicitors to alter metabolic pathways, affecting how molecules are produced both qualitatively and quantitatively. This research aimed to evaluate how abiotic elicitors salicylic acid (SA) and silver nitrate (SN) at concentrations of 30µM or 60µM influence Hyptis marrubioides seedling growth by two different in vitro culture methods. The rutin content was quantified by HPLC-DAD. Compared to an untreated culture, the H. marrubioides methanolic extracts cultured in MS medium for 10 days followed by culture in MS medium containing SN (30µM) for 20 days had 1.28 times higher rutin content. In a second experiment,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salicylic acid; HPLC-DAD; Tissue culture; Silver nitrate; Elicitation; Plant growth regulators.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200400
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Efficient In Vitro Somatic Embryogenesis and Plant Regeneration from Mature and Immature Embryos of Wheat ( Triticum aestivum L.) BABT
Ahmadpour,Roghayeh; Zare,Nasser; Asghari-Zakarta,Rasool; Sheikhzadeh,Parisa.
ABSTRACT An efficient regeneration system is a pre-requisite for the application of genetic transformation and functional genomics study of important plants. In this study, the effect of different factors (plant growth regulators, casein hydrolysate, aspartic acid and ascorbic acid) on in vitro embryogenesis and regeneration of Arta, Bahar and Zagros cultivars from mature and immature explants were investigated. Immature and mature embryos were dissected from disinfected seeds 20-25 days after pollination and imbedded mature seeds, respectively, and cultured on MS (Murashige and Skoog) medium supplemented with different compounds. The results showed that immature embryos expose high capacity of embryogenesis and regeneration in comparison with mature...
Tipo: Info:eu-repo/semantics/article Palavras-chave: In vitro culture; Plant growth regulators; Somatic embryogenesis; Wheat.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100206
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Eficiencia de las rizobacterias promotoras del crecimiento vegetal (RPCV) en plántulas de caña de azúcar (Saccharum spp.). Colegio de Postgraduados
Morgado González, Antonio.
Las Rizobacterias Promotoras de Crecimiento Vegetal (RPCV) son una alternativa en la nutrición de plantas cultivadas, ya que estimulan su crecimiento y rendimiento, mejorando la absorción de nutrimentos, el aumento en su movilización, la producción de antibióticos y de reguladores de crecimiento. La caña de azúcar (Saccharum spp.) es un cultivo muy demandante de nutrimentos y de alto rendimiento en México, el uso de las RPCV es fundamental para mejorar su rentabilidad. En esta investigación, se evaluó la efectividad en producción de índoles totales por el método Salkowski, solubilización de fosfatos con medio Pikovskaya de 24 cepas bacterianas de siete especies, y su impacto en el desarrollo de vitroplantas de caña de azúcar de la variedad Mex 69-290 al...
Palavras-chave: Nutrición vegetal; Biofertilizantes; Desarrollo; Fosfatos solubles; Fitohormonas; Plant nutrition; Biofertilizers; Plant development; Soluble phosphates; Plant growth regulators; Fisiología Vegetal; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/2078
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Estabelecimento de protocolo para multiplicação in vitro de Bastão-do-imperador (Etlingera elatior) Jack RM Sm. - doi: 10.4025/actasciagron.v32i4.4830 Agronomy
Colombo, Larissa Abgariani; UEL; Assis, Adriane Marinho de; UEL; Faria, Ricardo Tadeu de; UEL; Roberto, Sergio Ruffo; UEL.
O objetivo deste trabalho foi estabelecer um protocolo para a multiplicação in vitro de Bastão-do-imperador (Etlingera elatior). Brotos axilares foram inoculados em meio MS contendo as seguintes concentrações de reguladores de crescimento durante a fase de isolamento: testemunha; BAP 2,25 mg L-1; BAP 2,25 mg L-1 + ANA 0,93 mgL-1; BAP 2,25 mg L-1 + AIA 0,87 mg L-1; BAP 4,95 mg L-1; BAP 4,95 mg L-1 + ANA 0,93 mg L-1; BAP 4,95 mg L-1 + AIA 0,87 mg L-1. As brotações provenientes desta fase foram subcultivadas em um novo meio de cultura MS: testemunha; BAP 2,25 mg L-1; BAP 3,37 mg L-1; BAP 4,50 mg L-1; BAP 2,25 mg L-1 + ANA 1,12 mg L-1; BAP 3,37 mg L-1 + ANA 2,25 mg L-1; BAP 4,50 mg L-1 + ANA 3,37 mg L-1 e avaliou-se a taxa de multiplicação dos brotos por...
Palavras-chave: 5.01.03.04-0 Zingiberaceae; Micropropagação; Reguladores de crescimento Produção de mudas Zingiberaceae; Micropropagation; Plant growth regulators.
Ano: 2010 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4830
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Glyphosate plus carboxylic compounds boost activity of free radical-scavenging enzymes in sugarcane. Repositório Alice
MOREIRA, B. R. de A.; VIANA, R. da S.; FIGUEIREDA, P. A. M. de; LISBOA, L. A. M.; MIASAKI, C. T.; MAGALHÃES, A. C.; RAMOS, S. B.; VIANA, C. R. de A.; TRINDADE, V. D. R.; MAY, A..
Abstract: Drought, heat, and salinity, as well as pests, are stressing agents, which have impressively declined the productivity and quality of sugarcane crop in harsh environments. Our study aimed to examine the effect of various chemical ripeners as alternatives to enhancing the reactiveness of the enzymatic antioxidant system of sugarcane crop. The field experiment consisted of spraying the ingredients, ethephon, ethyl-trinexapac, glyphosate, carboxylic compounds (MTD) and methyl-sulfumeturon on the Brazilian commercial varieties, SP80-1842 and SP80-3280, before flowering stage. The enzymatic assay comprised the monitoring of the rate of degradation of free radical by ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD) and superoxide dismutase...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Induced oxidative stress; Plant growth regulators; Saccharum sp.; Cana de Açúcar; Herbicida; Regulador de Crescimento; Estimulante de Crescimento Vegetal; Sugarcane; Plant growth substances; Glyphosate; Oxidative stress.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125257
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Growth Stimulating Influence of Foliage Applied Brassica Water Extracts on Morphological and Yield Attributes of Bread Wheat under Different Fertilizer Regimes Planta Daninha
SHAHZAD,B.; CHEEMA,S.A.; FAROOQ,M.; CHEEMA,Z.A.; REHMAN,A.; ABBAS,T..
ABSTRACT: This study was conducted to explore the growth stimulating effect of foliage applied brassica water extract on growth and productivity of bread wheat (cv. Punjab 2011) at low and high fertilizer doses. The brassica water extract (5%) and the commercial growth regulator benzyl amino purine (BAP) (5 ppm) were applied alone and in combination at 30 and 45 days after sowing (DAS) under low fertilizer dose (125 kg ha-1 N and 90 kg ha-1 P) and high fertilizer doses (225 kg ha-1 N and 150 kg ha-1 P). Application of the brassica water extract (5%) significantly improved morphological traits such as crop growth rate, leaf elongation, leaf area index, plant height and number of productive tillers under both fertilizer regimes. Similarly, growth regulator...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilizer; Allelopathic water extracts; Plant growth regulators; Brassinolide.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100315
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In silico analysis of phytohormone metabolism and communication pathways in citrus transcriptome Genet. Mol. Biol.
Quecini,Vera; Torres,Gisele A.M.; Rosa Jr,Vicente E. de; Gimenes,Marcos A.; Machado,Jeanne B. de M.; Figueira,Antonio V. de O.; Benedito,Vagner; Targon,Maria Luisa P.N.; Cristofani-Yaly,Mariângela.
Plant hormones play a crucial role in integrating endogenous and exogenous signals and in determining developmental responses to form the plant body throughout its life cycle. In citrus species, several economically important processes are controlled by phytohormones, including seed germination, secondary growth, fruit abscission and ripening. Integrative genomics is a powerful tool for linking newly researched organisms, such as tropical woody species, to functional studies already carried out on established model organisms. Based on gene orthology analyses and expression patterns, we searched the Citrus Genome Sequencing Consortium (CitEST) database for Expressed Sequence Tags (EST) consensus sequences sharing similarity to known components of hormone...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defense responses; Development; Plant growth regulators.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000500002
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