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Boron foliar application, branch girdling and plant growth regulators on yield and fruit quality of ‘Garber’ pear trees Anais da ABC (AABC)
GIACOBBO,CLEVISON L.; PICOLOTTO,LUCIANO; PASA,MATEUS S.; FACHINELLO,JOSÉ CARLOS.
ABSTRACT The aim of this study was to evaluate the influence of boron foliar application, branch girdling and plant growth regulators on the performance of pear trees cv. Garber. The experiment was arranged in a randomized block design with three replications. Treatments consisted of different boron rates (220, 440, 660 and 880 mL 100 L-1), branch girdling, and the plant growth regulators Promalin® (benzyladenine + gibberellins AG4+7) (560 mL 100 L-1) and Biozyme * TF (200 mL 100 L-1). The percentage of fruit set, stem length, fruit length, fruit diameter, flesh firmness, soluble solids and yield were assessed. The greatest fruit set was observed with Promalin® in both years and also boron and Biozyme * TF in the second year. The use of Promalin® increased...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyrus sp; Fruiting; Plant growth regulator; Promalin®; Nutrition.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401815
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Cotton response to mepiquat chloride and temperature Scientia Agricola
Rosolem,Ciro A.; Oosterhuis,Derrick M.; Souza,Fabio S. de.
Gibberellin inhibitor growth regulators are used for cotton (Gossypium hirsutum L.) canopy manipulation to avoid excess growth and yield losses. However, under temperatures below or over the optimum for cotton production the effect of mepiquat chloride (MC) has not always been significant. In this experiment, cotton plants were grown in growth chambers to study the response to MC as affected by temperature and to determine if an increase in dose could overcome the temperature effects. Mepiquat chloride was applied at rates of 0, 15 and 30 g ai ha-1 at the pinhead square stage. Plants were then grown under three temperature regimes: 25/15 °C, 32/22 °C, and 39/29 °C (day/night temperatures) for 51 days. Higher temperatures increased plant height,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth regulator; Cotton growth; Photosynthesis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000200004
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Development of Different Grass Species with the Use of the Growth Regulator Trinexapac-Ethyl Planta Daninha
MARCHI,S.R.; SILVA JUNIOR,A.C.; MARTINS,D..
ABSTRACT: The use of synthetic compounds to retard the growth of lawns aims at reducing the number of operations for their maintenance. Thus, the main goal of the present study was to evaluate the effect of different doses of trinexapac-ethyl on the development and rooting of five different grass species. Bahiagrass, St. Augustine grass, Japanese lawn grass, Bermuda grass and, broadleaf carpetgrass were grown in pots of 20 L. The experimental design was completely randomized, with four replications. Trinexapac-ethyl (g ha-1) was applied at doses of 113+113, 226+113, 226+226, 452+113, 452+226, 452+452 in a sequential spraying, and also at single doses of 678 and 904. The second application was carried out 14 days after the first. On the day prior to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Paspalum notatum; Stenotaphrum secundatum; Zoysia japonica; Cynodon dactylon; Axonopus compressus; Plant growth regulator.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100270
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Efeito da aplicação de biorregulador no desempenho agronômico e produtividade da soja - DOI: 10.4025/actasciagron.v30i5.5971 Agronomy
Moterle, Lia Mara; UEM; Santos, Renato Frederico dos; 2Cooperativa Agropecuária e Industrial de Itambé; Braccini, Alessandro de Lucca e; UEM; Scapim, Carlos Alberto; UEM; Barbosa, Mauro Cezar; UEM.
O objetivo do trabalho foi avaliar o efeito da aplicação de biorregulador no desempenho agronômico das plantas e na produtividade de sementes da cultura da soja cultivar CD 216. O trabalho foi desenvolvido em dois anos agrícolas (2005/06 e 2006/07). Os tratamentos foram compostos pela combinação do tratamento de sementes (0 e 500 mL 100 kg-1 de sementes) com três doses de biorregulador (250; 375 e 500 mL ha-1) aplicadas via foliar em dois estádios de desenvolvimento da cultura (V5 e R3), mais a testemunha sem aplicação. As características avaliadas foram a altura das plantas, número de vagens por planta, produtividade e massa de 1.000 sementes. As características altura das plantas e número de vagens por planta não foram influenciadas pela aplicação do...
Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal soja; Sementes; Biorregulador; Produtividade; Stimulate® soybean; Seeds; Plant growth regulator; Yield; Stimulate®.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5971
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Ethephon use and application timing of abscisic acid for improving color of 'Rubi' table grape PAB
Roberto,Sergio Ruffo; Assis,Adriane Marinho de; Yamamoto,Lilian Yukari; Miotto,Lidiane Carla Vilanova; Koyama,Renata; Sato,Alessandro Jefferson; Borges,Rogério de Sá.
The objective of this work was to evaluate the effect of ethephon and of abscisic acid (ABA) application timing on the color of 'Rubi' Table grape. Eight treatments were evaluated: control, without application; ethephon 500 mg L‑1 applied seven days after veraison (7 DAV); and two concentrations of ABA (200 and 400 mg L‑1) arranged with three application timings at 7 DAV, at 15 days before harvest (DBH), and at 7 DAV + 15 DBH. ABA does not modify physical‑chemical characteristics of the cluster and improves the color of grapes, especially when applied twice (7 DAV + 15 DBH) at the concentration of 400 mg L‑1.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vitis vinifera; ABA; Anthocyanins; Plant growth regulator.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000700013
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Gibberellic acid and water regime in the flowering induction of Brassocattleya and Cattleya hybrid orchids Horticultura Brasileira
Cardoso,Jean C; Ono,Elizabeth O; Rodrigues,João D.
The influence of gibberellic acid (GA3) and water regime was evaluated in the flowering induction and quality of two orchid hybrids belonging to the genera Cattleya (C.) and Brassocattleya (Bc.). The experiment was carried out in the Biotechnology and Orchid Culture Sector of Shunji Nishimura Technology Foundation, Pompéia, São Paulo State, Brazil. Five GA3 concentrations (0, 125, 250, 500 and 1,000 mg L-1) were tested through four consecutive leaf applications in adult plants that had already flowered at least once, besides two water conditions (one and four irrigations per week). Applications were performed in October and November for Bc. Marcella Koss and in January and February for C. Irene Holguin. Flowering could not be induced in the latter by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ornamental plants; Flowering; Quality; Pulverization; Plant growth regulator; Water suppression.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000400003
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Gibberellic acid combined with hand pollination increases ‘Red’ and ‘Lessard Thai’ sugar apple fruit quality and produced parthenocarpic ‘Gefner’ atemoya fruits Ciência Rural
Pereira,Marlon Cristian Toledo; Nietsche,Silvia; Crane,Jonathan Henry; Montas,Wanda; Siqueira,Célia Lúcia; Rocha,Josiele Silva.
ABSTRACT: The present research aimed to evaluate the effect of applying gibberellic acid (GA3) with hand (HP) or natural pollination (NP) on fruit set and the fruit quality of ‘Red’ and ‘Lessard Thai’ sugar apple and ‘Gefner’ atemoya fruits.This study was performed in an experimental orchard located in Homestead, Florida, USA. The experimental design included randomized blocks, with eight treatments, four replicates and four plants per plot. Treatments included: (1) HP; (2) HP + 10 mg L-1 GA3; (3) HP + 100 mg L-1 GA3; (4) HP + 1,000 mg L-1 GA3; (5) NP; (6) NP + 10 mg L-1 GA3; (7) NP + 100 mg L-1 GA3 and (8) NP + 1,000 mg L-1 GA3. The HP plus 1,000 mg L-1 GA3 promoted fruit setting above 90% over the 14 weeks for all genotypes evaluated. Significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annona squamosa; A. cherimola x A. squamosa; Fruit set; Parthenocarpy; Plant growth regulator; Seedless fruits..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900401
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Gibberellin and cytokinin effects on soybean growth Scientia Agricola
Leite,Vagner Maximino; Rosolem,Ciro Antonio; Rodrigues,João Domingos.
Soybean is an important crop in Brazil. Nonetheless, there are no reports on the use of plant growth regulator potential in relation to this crop in the national literature. To better understand the role of these compounds, a pot experiment was carried out to study effects of GA3 and cytokinin on the vegetative growth of the soybean. GA3 (50 mg L-1) was applied as seed treatment, leaving plants with water application as control. GA3 (100 mg L-1) and cytokinin (30 mg L-1) were sprayed on leaves at the physiological stage V3/V4, and 15 days after, cytokinin (30 mg L-1), also as foliar spray. Seed treatment decreased plant emergence and initial soybean root growth, but as the season progressed, differences in root growth disappeared; plants were shorter, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine max; Gibberellic acid; Gibberellin; Aminopurin; Plant growth regulator.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300019
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In vitro propagation of Rubus macrocarpus Benth. and Rubus bogotensis Kunth, as an ex situ conservation strategy Acta Agron. (Palmira)
Pérez-Martínez,Belkys Adriana; Castañeda-Garzón,Sandra Liliana.
Abstract This research aimed to evaluate techniques for in vitro multiplication and rooting and ex vitro adaptation of wild blackberry plants (Rubus bogotensis Benth. and Rubus macrocarpus Kunth). In in vitro phases, the influence of culture media was evaluated based on Murashige & Skoog (MS) composition, with or without a 50% reduction in salts, vitamins, and myo-inositol and supplemented or not with benzylaminopurine (BAP), indole acetic acid (IAA), L-cysteine, agar, peat, perlite, and vermiculite. The ex vitro phase was based on a soil, rice husks, peat, and perlite substrate management. After two months of evaluation of the in vitro phases, it was determined that the MS medium at 50% salts, vitamins, and myo-inositol and supplemented with sucrose...
Tipo: Journal article Palavras-chave: Blackberry; Culture medium; High Andean forest; Plant growth regulator; Wild species.
Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000100102
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Indol-butyric acid levels on cashew cloning by air-layering process Rev. Bras. Frutic.
Lopes,Rodrigo Luiz; Cavalcante,Ítalo Herbert Lucena; Oliveira,Inez Vilar de Morais; Martins,Antonio Baldo Geraldo.
A study was conducted to determine the possibility of cashew (Anacardium occidentale) cloning by air-layering and influence of IBA (indol-butyric acid) on this process. It was adopted a completely randomized design with 4 treatments, 10 air layers each and 4 replications, reaching 160 air layers. The IBA levels on the treatments were, as follow: 0, 1000, 3000 and 5000 mg.kg-1. It was evaluated: survival, callus and rooting percentage, average number and length of roots. The highest survival rate (67.5%) was registered with no growth regulator and IBA at 1000 mg.kg-1, while the best rooting percentage (82%) referred to 1000 mg.kg-1. In spite of average number and length of roots, the highest results were observed with IBA at 5000 mg.kg-1. IBA concentrations...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anacardium occidentale; Plant growth regulator; Vegetative propagation.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452005000300043
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Irradiation effect on in vitro organogenesis, callus growth and plantlet development of Gerbera jamesonii Horticultura Brasileira
Hasbullah,Nor A; Taha,Rosna M; Saleh,Azani; Mahmad,Noraini.
The present work was carried out to study the effects of gamma irradiation on in vitro growth of explants, callus and the formation of shoots and plantlets. Irradiation is known to exhibit or inhibit the differentiation of cells and growth of plants in vitro, which helps in producing new plant varieties. Gamma irradiation is one of the physical mutagens that are widely used for mutation breeding. A gradual decline was observed in the number of shoots regenerated from irradiated petiole explants compared to control. Numbers of shoots regenerated from irradiated petiole explant cultured on Murashige & Skoog medium supplemented with 2.0 mg L-1 BAP and 0.5 mg L-1 NAA was reduced to 6.6±0.9 from 7.5±0.4 (control) when explants were exposed to 20 Gray of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gerbera jamesonii; Ornamental; Gamma irradiation; Explant; Callus regeneration; Plant growth regulator; MS medium.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362012000200012
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Overcoming dormancy in seeds of biribá and seedling growth Sci. Agrar.Paran. / SAP
Coutinho, Pablo Wenderson Ribeiro; Villa, Fabíola; Pires, Ely; Siqueira, Hingrit Mazurek.
The study aimed to evaluate the influence of overcoming dormancy of seeds of biribá through chemical and mechanical method in the emergence and initial growth of seedlings. The fruits were acquired from a mother plant in Cascavel (PR).  The experimental design was a completely randomized in factorial 2 x 3, with four repetition, containing 25 seeds each repetition. The first factor was constituted of scarification with sandpaper n.80 of the two sides opposite the micropyle (with and without), the second factor was the soaking for 24 h (water, GA3 in the concentration of 1000 mg L-1 and without soaking). The count was performed for up to 60 days, being calculated the emergence speed index, average time of emergence and speed of emergence. When the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rollinia mucosa (Jacq.) Baill; Emergence; Sexual propagation; Plant growth regulator.
Ano: 2018 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/19647
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Paclobutrazol for Height Control of Petunias Chilean J. Agric. Res.
Francescangeli,Nora; Zagabria,Ana.
The effects of paclobutrazol on the height of Petunia × hybrida hort. ex E. Vilm. were studied. An experiment on 'Bravo F1' was performed at the National Institute for Agricultural Technology (INTA), San Pedro Agricultural Experimental Station (33º4’ S, 59º4’ W), Buenos Aires Province, Argentina, in the spring of 2006. Treatments consisted of three colours of flower (white, red and blue), four concentrations of paclobutrazol by irrigation (0, 5, 10 and 15 mg L-1 and three application times (at 10-12, 18-20 and 26-28 leaves). Height at 45 d after transplanting (dat), days to appearance, opening and fall of the first flower and number of flowers at 21 and 45 dat were registered. Differences between control plants due to flower colour were detected, and would...
Tipo: Journal article Palavras-chave: Plant growth regulator; Plant architecture; Flower colour; Application time.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000300012
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Prohexadione calcium on shoot growth of 'Starkrimson' pear trees PAB
Pasa,Mateus da Silveira; Einhorn,Todd.
Abstract: The objective of this work was to evaluate the fruiting and vegetative growth of 'Starkrimson' pear in response to the application of prohexadione calcium (P-Ca). P-Ca (250 mg L-1) was sprayed to scaffold limbs and to whole trees in commercial orchards. A randomized complete block design was used to minimize declivity effects. Vegetative growth (length and number of shoots, increment in limb and trunk cross-sectional area, number of nodes, and internode length), production (fruit number, yield, yield efficiency, and fruit size), and return bloom were evaluated from 2010 to 2013. P-Ca efficiently controlled shoot growth in all growing seasons, when applied early in the season, due to the reduction in internode length. Production was not negatively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyrus communis; Modern orchard; Plant growth regulator; Vigor control.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000200075
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Rainfall intensity and Mepiquat Chloride persistence in cotton Scientia Agricola
Souza,Fábio Suano de; Rosolem,Ciro Antonio.
In some regions where cotton is grown in Brazil rainfall amounts to about 2,000 mm per year, which imposes a great risk for Mepiquat Chloride (MP) to be washed from cotton leaves before being absorbed. The objective of this research was to evaluate the MC persistence when applied on cotton plants submitted to different rain intensities after spraying. The treatments were three MC rates: 0, 15.0 and 30.0 g a.i. ha-1 and four simulated rainfalls, applied 90 minutes after MC spraying: 5, 10, 20 and 40 mm, plus a treatment without rain. Cotton plants of the cv. Delta Opal were grown in 12 L pots filled with an Haplortox. The experimental design was consisted of complete randomized blocks, in a factorial scheme, with four replicates. The evaluated parameters...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plant growth regulator; Rain washing; Plant height.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200004
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Rooting of herbaceous cuttings of Malpighia emarginata D.C. (CAMB-06 and APU-04 selections) associated with the use of indolebutyric acid and liquid extract of Cyperus rotundus L. Rev. Bras. Frutic.
Mühlbeier,Débora Thaís; Koyama,Renata; Chaves Junior,Osmar Jose; Hussain,Ibrar; Stenzel,Neusa Maria Colauto; Roberto,Sérgio Ruffo.
Abstract The objective of this work was to evaluate the rooting of herbaceous cuttings of CAMB-06 and APU-04 acerola cherry selections associated with the use of indolebutyric acid (IBA) and a concentration of aqueous extract of coco-grass. Cuttings were treated by immersion with different concentrations of IBA (0; 1,000; 2,000; 3,000; 4,000 mg L-1) and one application of aqueous extract of coco-grass in proportion 100% and placed to root in plastic boxes containing vermiculite. The experimental design was a completely randomized in a 2×6 factorial arrangement (two acerola cherry selections and six solutions for rooting) with four replicates of ten cuttings. After 90 days of cutting, the following variables were evaluated: cutting survival (%); leaf...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Propagation; Plant growth regulator; IBA; Extract of coco-grass; Acerola cherry.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000101001
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Use of 2,4-D in Mixture with Ethephon and Calcium Carbide in Pineapple Crop Planta Daninha
RAPOSO JR.,R.; PEREIRA,G.A.M.; MATOS,C.C.; BARCELLOS JR.,L.H.; PAULA,D.F.; SILVA,A.A..
ABSTRACT: The 2-Chloroethylphosphonic acid (ethephon) and calcium carbide are used to induce and synchronize the flowering of pineapple crop. Some farmers have used the 2,4-D herbicide in combination with these flowering inducers. This practice is based on the hypothesis that 2,4-D would act as a growth regulator, increasing fruit size and weight. The objectives of this work was to verify if the use of 2,4-D, associated to calcium carbide or ethephon, influences the productivity and quality of the pineapple fruits and, also if the use of this herbicide leaves residues in the fruits. For this, two field experiments were carried out in two different farms. The treatments consisted of the application of ethephon and calcium carbide, alone, and in a mixture...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ananas comosus; Dichlorophenoxyacetic acid; Floral inducer; Plant growth regulator.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100174
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Uso de Paclobutrazol e esterco bovino melhora a qualidade das mudas de pimenta Sci. Agrar.Paran. / SAP
Murilo Sinatura Sipioni; UEMS; Fábio Steiner; UEMS - Universidade Estadual de Mato Grosso do Sul; José Luís Firmino Júnior; UEMS; Pedro Henrique Resende Dias; UEMS.
O uso de mudas de alta qualidade é um dos principais fatores para o sucesso da produção de hortaliças. Mudas de qualidade podem ser obtidas com a utilização de substratos apropriados e com adequado balanço nutricional e hormonal das plantas. Desse modo, objetivou-se com este trabalho investigar os efeitos da aplicação foliar de nitrogênio e paclobutrazol e do uso de esterco bovino na produção de mudas de pimenta. Mudas de pimenta (Capssicum frutescens cv. Malagueta) foram cultivadas em um viveiro com tela de sombrite de 50%. Os tratamentos foram dispostos em um delineamento experimental inteiramente casualizado em esquema...
Tipo: Artigo Avaliado por Pares Palavras-chave: Capsicum frutescens; Organic substrate; Plant growth regulator.
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13368
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VIABILIDADE ECONÔMICA DO USO DE REGULADORES VEGETAIS EM CANA-PLANTA AgEcon
Miguel, Fernando Bergantini; Silva, Jose Antonio Alberto Da; Bárbaro, Ivana Marino; Costa, Augusto Guerreiro Fontoura; Esperancini, Maura Seiko Tsutsui.
O uso de reguladores vegetais na agricultura vem se tornando uma prática rotineira com o objetivo de explorar o potencial produtivo das culturas. Na cultura da cana-de-açúcar, o estudo da viabilidade da aplicação não depende apenas da avaliação da produtividade física, devendo ser agregada à análise econômica, visto que estas variáveis são essenciais à tomada de decisão de produtores e técnicos. Assim sendo, o objetivo do trabalho foi de determinar a viabilidade técnica e econômica da aplicação de um regulador vegetal na produtividade da cultura da cana-de-açúcar no município de Colina SP, no ano agrícola 2006/07. Num delineamento experimental em blocos ao acaso foram avaliados a campo os efeitos de doses e época de aplicação do Stimulate®, sendo que os...
Tipo: Conference Paper or Presentation Palavras-chave: Saccharum spp; Biorregulador; Custo operacional efetivo; Rentabilidade; Saccharum spp; Plant growth regulator; Cost operating effective; Profitability; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/109765
Registros recuperados: 19
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