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| Registros recuperados: 52 | |
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| SOUSA, J. A. de; LEDO, F. J. da S.; SILVA, M. R. da. |
| No Estado do Acre não existem produtores especializados em mudas de hortaliças, as quais são feitas quase que na sua totalidade pelo sistema mais tradicional e antigo, ou seja, em sementeira, uma vez que grande parte dos produtores desconhece os demais sistemas. Portanto, procurou-se reunir alguns dos mais importantes sistemas de produção de mudas de hortaliças atualmente utilizados, para suprir a carência de informações e auxiliar o sistema produtivo a desenvolver-se e tornar-se mais eficiente, proporcionando mais benefícios aos produtores de hortaliças do Estado do Acre. |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Verduras.; Producción de plántulas; Adopción de innovaciones; Produção; Muda; Transferência de Tecnologia.; Hortaliça; Inovação; Vegetables; Innovation adoption.; Technology transfer; Seedling production. |
| Ano: 1997 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492505 |
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| Santos, Laércio Wanderley dos; Coelho, Maria de Fatima Barbosa; Azevedo, Rodrigo Aleixo Brito de. |
| The aim of this study was to evaluate the effect of different substrates and luminosity in the early growth of Caesalpinia ferrea Mart. ex Tul. seedlings. It was used completely randomized design in factorial 5 x 2 (five substrates and two environments) with four replications of 10 plants in each plot. The substrates were 1- arisco, 2- arisco + cattle manure 2:1, 3- arisco + cattle manure 3:1, 4- sand + cattle manure 2:1 and 5- sand + cattle manure 3:1. Environments were in full sun and 50% light. The evaluated characteristics in September 2009, were stem diameter, height, roots dry mass, shoots dry mass, leaf area and index quality of Dickson. There was no significant difference for stem diameter. The substrates containing manure promoted the development... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caesalpinia ferrea; Morphological characteristics; Seedling production; Cattle manure Recursos Florestais Caesalpinia ferrea; Características morfológicas; Produção de mudas; Esterco bovino. |
| Ano: 2013 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/344 |
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| Simão Soares, Márcia Toffani; Gaiad, Sérgio; Resende, Alexander Silva de; Menezes, Gustavo Ibarreche de; Fernandes, Fernando Antônio; Bergamin Marozzi Fernandes, Ana Helena. |
| The aim of this study was to compare mycorrhizal infection and quality indicators of Calophyllum brasiliense and Anandenanthera colubrina var. cebil seedlings from Pantanal Wetland Biome, Brazil, produced in non-fumigated substrate under combined inoculation with Glomus clarum (Gc) + Gigaspora margarita (Gm). Seedlings were produced from seeds of local populations seeds, inoculated and non-inoculated with Gc + Gm. They were randomly selected and evaluated for morphological quality parameters, percentage, intensity and morphology of mycorrhizal colonization of fine roots. We concluded that, under the study conditions, Gc + Gm inoculation promotes changes in the percentage, intensity (A. colubrina var. cebil) or morphology (C. brasiliense) of root infection... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inoculation; Seedling production; Symbiosis Recursos Florestais; Silvicultura; Produção de Mudas; Microbiologia do Solo Inoculação; Produção de mudas; Simbiose. |
| Ano: 2017 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1424 |
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| Rego, Gizelda Maia; Possamai, Edilberto. |
| Toevaluate the effects of periods of shadeness over the initial growth and concentrations of chlorophyll in Cariniana legalis (Mart.) Kuntze seedlings, an experiment was installed in the research nursery of Embrapa Florestas, at Colombo/PR, Brazil. It was utilized randomized blocks design with five treatments and four replications. The treatments established were: 100% (entire light); 70%, 64%, 44% and 34% of sun radiation. Monitoring of height and diameter were made under intervals of 30 days, from 60o to 180o day after emergency (DAE). Air total dry matter weight of roots, leaf area, chlorophyll a, chlorophyll b and total chlorophyll were measured 180 days after emergency. FAR (Photosynthetic Active Radiation) of 63, 07% led to the best seedling growth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest species; Seedling production; Luminosity; Solar radiation Espécie florestal; Plântulas; Mudas; Luminosidade; Radiação solar.. |
| Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/210 |
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| Mori da Cunha, Ana Catarina Monteiro Carvalho; Wendling, Ivar; Souza Júnior, Levi. |
| The present work aimed to evaluate the influence of different concentrations of indolbutiric acid (0, 2000, 4000, 6000 and 8000 mg L-1) in the rooting of cuttings and vigor of the produced seedlings of Sapium glandulatum. The results obtained with relationship to the rooting indicated the best results for the dose of 6000 mg L-1 of AIB, with average of 52%, demonstrating this to be the most suitable concentration for the production of seedlings of this species. It was concluded that rooting cuttings technique of Sapium glandulatum is technically viable and could be used in the production of seedlings, thus overcoming problems of shortage of seeds and low germination rate. Also, it could be an alternative for production of seedlings all the year. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vegetative propagation; Seedling production; Growth regulator Propagação vegetativa; Produção de mudas; Regulador de crescimento. |
| Ano: 2004 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1291 |
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| Pinto,José R. de S.; Freitas,Rômulo M. O. de; Leite,Tiago de S.; Oliveira,Francisco de A. de; Ferreira,Hugo; Leite,Moadir de S.. |
| ABSTRACT This study aimed to evaluate the growth of young Tabebuia aurea seedlings irrigated with different concentrations of wastewater from fish farming. The experiment was conducted in a seedling nursery, from June to August 2013. The treatments consisted of five concentrations of wastewater from fish farming diluted in freshwater (0, 25, 50, 75 and 100% of wastewater). Plant height, stem diameter and plant height/stem diameter ratio were evaluated every 15 days to verify the effects of treatments on seedlings growth. At the end of the experiment, individual leaf area, leaf area, leaf dry matter, stem dry matter, root dry matter, total dry matter and Dickson quality index were also evaluated. The reuse of wastewater from fish farming diluted at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water reuse; Seedling production; Salinization; Reforestation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000600519 |
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| Cavalcante,Lourival F.; Cavalcante,Ítalo H. L.; Pereira,Kátia S. N.; Oliveira,Francisco A. de; Gondim,Saulo C.; Araújo,Fernanda A. R. de. |
| The present study was carried in order to evaluate the effect of saline water irrigation with electrical conductivity (ECw) of 0.5; 1.5; 3.0; 4.5 and 6.0 dS m-1, on germination and some growth variables during the seedling formation process of four guava cultivars (Psidium guajava L.): Pentecoste, Paluma, Surubim and IPA B-38. Water salinity inhibited the germination process, plant height, stem diameter, leaf area and dry matter production of roots, stems and leaves, independently of cultivar. After germination, the seedlings did not survive due to saline water effects of ECw 4.5 and 6.0 dS m-1. After 180 days of sowing, the seedlings irrigated with ECw more than 1.5 dS m-1 did not present agronomic quality for planting. Dry matter production sequence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedling production; Salinity; Psidium guajava. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662005000400012 |
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| Dias,Gustavo Cardoso de Oliveira; Medici,Leonardo Oliveira; Vasconcellos,Marco Antonio da Silva; Carvalho,Daniel Fonseca de; Pimentel,Carlos. |
| The study assessed growth and physiological parameters of 'Sunrise Golden' and 'Tainung 01' papaya seedlings grown in 280mL plastic tubes and watered using a low-cost automatic irrigation system adjusted to operate at substrate water tension for starting irrigation (STI) of 3.0, 6.0 or 9.0 kPa. The water depths applied by the dripping system and drainage were monitored during germination and seedling growth. Germination, emergence velocity index (EVI), leaf area, plant height, shoot and root dry weight, stomatal conductance, relative water content (RWC) and relative chlorophyll content (RCC) were evaluated. Soil nutrient levels were determined by electrical conductivity (EC). Water use efficiency (WUE) corresponded to the ratio of plant dry mass to depth... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya L.; Seedling production; Irrigation automation; Moisture sensors. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000200023 |
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| 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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| Gomes Júnior,Gedeon Almeida; Pereira,Rafaela Alves; Sodré,George Andrade; Sacramneto,Célio Kersul do; Gross,Eduardo. |
| Abstract The aim of this study was to evaluate the effect of arbuscular mycorrhizal fungi inoculation (AMF - Acaulospora scrobiculata, Acaulospora colombiana and the mixture of these inocula) and doses of organic compost obtained from cocoa shell (0, 5, 10, 20 and 30 g dm-3) on “Morada” soursop seedlings. The experimental design was a randomized block with 4 blocks in a 5 x 4 factorial scheme (AMF x organic compost). After 120 days of growth, it was observed that AMF inoculation increased height, stem diameter and shoot, root and total dry biomass. Organic compost stimulated mycorrhizal colonization and the number of spores with the addition up to 10 g dm-3. Mycorrhizal inoculation promoted increases of P content in soursop leaves. Control plants did not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycorrhiza; Seedling production; Residues; Composting. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000503001 |
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| Boliani,Aparecida Conceição; Ferreira,Antonio Flávio Arruda; Monteiro,Laís Naiara Honorato; Silva,Marcela Sant’anna Cordeiro da; Rombola,Adamo Domenico. |
| Abstract Fig tree (Ficus carica L.) stands out due to its range of cultivation and easy adaptation to diverse edaphoclimatic conditions. In addition to its adaptability, fruits have nutraceutical characteristics and are used in industry and for fresh consumption, widely appreciated by the world cuisine. Due to lack of manpower and phytosanitary problems, the area planted in Brazil has decreased recently. To overcome these obstacles, the production of quality seedlings is the first step to obtaining productive and healthy orchards. Therefore, the aim of the present literature review was to gather data referring to advances in research related to the fig tree propagation. Currently, the methods found for fig tree propagation consist of seedling production,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fig; Seedling production; Fruit tree; Pomology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000301006 |
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| Souza,Aline das Graças; Smiderle,Oscar José; Chagas,Edvan Alves; Alves,Márcia Souza; Fagundes,Paulo Renato de Oliveira. |
| ABSTRACT African mahogany is a species preferred by many entrepreneurs as an investment in the forestry sector. However, there are few studies or research on the species, especially in Brazil. The aim of this work was to study the efficiency of nutrient uptake, accumulation, distribution and use in Khaya ivorensis and Khaya senegalensis, in addition to aspects of growth variables and of dry matter partitioning as a function of mineral fertilisation. Morphological, physiological and nutritional parameters were determined in the African mahogany plants 140 days after transplanting (DAT). The greatest zinc (Zn) content was detected in the shoots of both the Khaya ivorensis and Khaya senegalensis plants, accounting for more than 50% of the accumulated total of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Khaya senegalensis; Khaya ivorensis; Seedling production; Nutrient partitioning; Mineral nutrition. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200404 |
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| Ferrarezi,Rhuanito Soranz; Bataglia,Ondino Cleante; Furlani,Pedro Roberto; Schammass,Eliana Aparecida. |
| For high technology seedling production systems, nutrition plays an important role, mainly the fertigation with iron chelates to prevent its deficiency. This study had the goal of searching for alternative iron sources with the same nutrient efficiency but lower cost in relation to nutrient solution total cost. An experiment was carried out in 56 cm³-conic-containers tilled with a pine bark/ vermiculite mixed substrate using Fe-DTPA, Fe-EDDHA, Fe-EDDHMA, Fe-EDTA, Fe-HEDTA, FeCl3, FeSO4, FeSO4+citric acid plus a control, and the rootstocks Swingle, Rangpur, Trifoliata and Cleopatra, in a randomized complete block design, with four replicates. Seedlings were evaluated for height, relative chlorophyll index, total and soluble iron leaf concentrations.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedling production; Chelates; Fertigation; Economical analysis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000500010 |
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| FERREIRA,Débora Najara de SOUZA; CAMARGO,José Luís Campana; FERRAZ,Isolde Dorothea Kossmann. |
| ABSTRACT Polyembryony is the differentiation and development of multiple embryos in a single seed. This characteristic can provide advantages, as more than one embryo is produced with the same amount of resources, and the probability of establishment of at least one seedling increases. However, sibling seedlings may also increase competition, affecting development and survival. In the present study, the possible advantages and disadvantages of polyembryony were analyzed in the initial establishment of seedlings of Carapa surinamensis (Meliaceae), a tree species that produces monoembryonic or polyembryonic seeds. In this regard, the development of single seedlings was compared with a pair of seedlings emerging from polyembryonic seeds. We compared the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polyembryony; Andiroba; Crabwood; Seedling production; Competition. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200097 |
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| Pereira,Marlon Corrêa; Rocha,Diego Ismael; Veloso,Tomás Gomes Reis; Pereira,Olinto Liparini; Francino,Dayana Maria Teodoro; Meira,Renata Maria Strozi Alves; Kasuya,Maria Catarina Megumi. |
| Cyrtopodium glutiniferum is an endemic orchid of Brazil with potential medicinal and ornamental applications. As mycorrhizal fungi are essential for the initiation of the orchid life cycle, the aim of this study was to determine the strains of mycorrhizal fungi suitable for seed germination and protocorm development of C. glutiniferum and to characterize the symbiotic development of protocorms. Seeds of C. glutiniferum were inoculated with nine mycorrhizal fungi, Epulorhiza spp., Ceratorhiza spp., Rhizoctonia sp., originally isolated from Brazilian neotropical orchids. Only Epulorhiza isolates promoted seed germination and protocorm development. Three Epulorhiza isolates (M1, M6 = E. epiphytica, M20 = Epulorhiza sp.) promoted protocorm development until... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ceratorhiza; Epulorhiza; Orchid conservation; Seedling production; Symbiosis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400567 |
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| Registros recuperados: 52 | |
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