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| Registros recuperados: 54 | |
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| Coimbra,Karuliny das Graças; Peixoto,José Ricardo; Sousa,Marcelo Alves de Figueiredo de; Junqueira,Nilton Tadeu Vilela. |
| Este trabalho teve como objetivo avaliar a produtividade e a qualidade de frutos de progênies de maracujazeiro-azedo cultivados no Distrito Federal. Foi conduzido na Fazenda Água Limpa-UnB, utilizando-se de delineamento de blocos casualizados, com 14 tratamentos (progênies), 04 repetições, sendo a parcela útil de oito plantas. As progênies avaliadas foram: Vermelhão Ingaí, EC-RAM, AR01, AR02, mar20#36, mar20#46, AP1, FP01, FB200, RC3, GA2-A1*AG, mar20#03, mar20#23 e mar20#09. As características analisadas em 75 colheitas foram: produtividade (kg/ha), massa média de frutos (g), número de frutos por hectare, coloração da casca e classificação quanto ao tamanho. Houve maior rendimento em Vermelhão Ingaí, EC-RAM e AR01. O Vermelhão Ingaí produziu a maior... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis; Produção; Cultivo em campo; Fitotecnia. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000400020 |
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| Fonseca, Marcos José de Oliveira; Soares, Antonio Gomes; Barboza, Henriqueta Talita Guimarães; Carvalho, Marcela Aline Guimarães; Neves Júnior, Augusto César Vieira. |
| Guava has intense metabolic activity, requiring the use of post-harvest technologies for extension of its life and quality maintenance. As the fruit is consummed with the skin, the application of edible coating is a modified atmosphere technology that can be implemented. This study aimed to evaluate the postharvest quality indeces (such as vitamin C, lycopene, β-carotene, glucose, fructose, sucrose, etc.) of guavas ‘Pedro Sato’ submitted to three different edible coatings (based on cassava starch, sodium alginate or carboxymethylcellulose) and under 10 oC refrigerated storage. Regardless of the treatment applied, guavas ‘Pedro Sato’ achieved higher levels of vitamin C after prolonged storage of 22 days. On the other hand, the use of edible coatings based... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Fisiologia pós-colheita de produtos vegetais perecíveis atmosfera modificada; Filme comestível; Pós-colheita de goiaba; Psidium guajava. |
| Ano: 2016 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/651 |
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| Leite, Cláudio Wrege; Luz, Carlos Alberto Silveira da; Luz, Maria Laura Gomes Silva da; Gadotti, Gizele Ingrid; Navroski, Renan. |
| O fósforo participa de processos vitais nas plantas, como a fotossíntese, a respiração, o armazenamento e transferência de energia, a divisão celular e o crescimento das células. O potássio atua na ativação de algumas enzimas e desempenha um papel importante no equilíbrio de água nas plantas. O presente trabalho teve como objetivo correlacionar os níveis de fósforo e potássio com a produtividade em arroz irrigado, bem como avaliar a viabilidade do uso de agricultura de precisão em área de arroz irrigado. O trabalho foi conduzido durante três safras em sucessão de culturas: arroz, soja, arroz, no município de Santa Vitória do Palmar/RS. Utilizou-se uma área de 22,18 ha, dividida em 15 parcelas, as quais foram georreferenciadas no ponto central. Foi coletada... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Agricultura de Precisão agricultura de precisão; Fertilidade; Georreferenciamento; Variabilidade. |
| Ano: 2017 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/749 |
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| Rosa, Willian Bosquette; Duarte Júnior, José Barbosa; Queiroz, Samara Brandão; Perego, Ivonei; Mattei, Eloisa. |
| No Brasil são semeadas duas safras de milho por ano, fator que contribui para o aumento da incidência e severidade de doenças fúngicas, que refletem em significativas perdas do potencial produtivo da cultura. O objetivo desse trabalho foi avaliar a aplicação de fungicida em híbridos de milho em diferentes estádios fenológicos. O delineamento foi em blocos casualizados com quatro repetições, num esquema fatorial 5 x 2 x 3, sendo cinco híbridos (DG213, Formula TL, CD308, P30K64 e Formula VIP), com e sem azoxistrobina + ciproconazol e água em três estádios fenológicos (V8, VT e R1). As doenças incidentes foram ferrugem polissora, mancha branca e cercosporiose. O uso do fungicida proporcionou maior sanidade às plantas e um aumento médio de 5, 11 e 14% no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências agrárias; Fitotecnia; Fitopatologia produtividade viabilidade de grãos de pólen Zea mays. |
| Ano: 2017 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/820 |
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| Pinto, António Alves; Camara, Felipe Thomaz da; Silva, Francisco Edson da; Santana, Laudeline Dantas; Rodrigues, Wíctor Állyson Dias. |
| The use of manual traction seeders in small farms has technical and economic feasibility, but few studies are carried out with this sowing technology for cowpea, which is one of the main crops in the Cariri region of Ceará. This study aimed to evaluate the longitudinal spacing and yield of cowpea as a function of speed and working depth of a manual seeder. The study was conducted at the Center for Agricultural Sciences and Biodiversity, Federal University of Cariri, Crato-CE, located in the region of Cariri, Ceará. The experiment was arranged in a 2x3 factorial randomized block design, with four replications, totaling 24 observations. The first factor was two sowing depths (Shallow and Deep); and the second factor the displacement speed (2.15; 3.90; and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mecanização Agrícola; Fitotecnia; Energia na Agricultura feijão verde; Grãos; Profundidade de semeadura; Velocidade de trabalho; Vigna unguiculata. |
| Ano: 2017 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/750 |
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| Peloso, Anelisa Figueiredo; Tatagiba, Sandro Dan; Amaral, José Francisco Teixeira. |
| The objective of this study was to investigate the limitations of the vegetative growth of the Coffea arabica L, Catuaí Vermelho (IAC 144), submitted to the water deficit, using the following dry matter characteristics: total (MST), of the leaf (MSF), of the orthotropic branches plus the plagiotropics (MSRo+p), of the root (MSR), besides of the leaf area, height and diameter. The experiment was set up in a completely randomized design, using three treatments of water availability [30, 60 and 100% of available water (AD)], with six replications. The plot for the evaluations consisted of one plant per pot. According to the results, it was verified that the water deficit negatively affected the plant growth as the water availability in the substrate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Cafeicultura; Fisiologia Vegetal Coffea arabica L.; Desenvolvimento inicial; Estresse hídrico; Lâmina de irrigação. |
| Ano: 2017 |
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/755 |
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| Garcia, L. M.; Feitosa, N.; D'Oliveira, P. S.; Zonetti, P. Da C.. |
| Jatropha curcas growth, like any other crop, depends on adequate management. However, there is little information about weed interference on the growth and control of this crop. This study aimed to identify the floristic composition of weeds in a J. curcas cultivation area in Maringá (Paraná, Brazil). The study was carried out in an area of 600 m2, where spacing between plants was 3 x 2 m. For the identification and quantification of weeds, we applied the method of inventory square. Calculated parameters were: frequency, relative frequency, density, relative density, abundance, relative abundance and relative importance index. We identified 27 species of weeds, inserted in 12 families, that is, 10 dicotyledons and 02 monocotyledons. Among the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jatropha curcas L.; Fitotecnia; Plantas invasoras. |
| Ano: 2011 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/5539 |
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| Costa, Bárbara Nogueira Souza; Dias, Gabrielen de Maria Gomes; Costa, Irton de Jesus Silva; Assis, Franscinely Aparecida de; Silveira, Flávia Aparecida da; Pasqual, Moacir. |
| The objective of this study was to determine the silicon concentration that would provide good growth in passion fruit plants. Passion fruit seeds were sown in polystyrene. After 60 days, when they were approximately 15 cm tall, the plants were transplanted into polyethylene pots containing 1.1 kg Tropstrato® substrate. Treatments consisted of four concentrations (0, 0.28, 0.55, and 0.83 g pot-1) of silicon applied as a silicic acid solution 1%. This solution was applied around the stem of the plants (drenched), with the first application being administered 15 days after transplanting. In total, three applications were made at intervals of 15 days. After the last application, the plants were subjected to chemical analysis to determine the silicon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Fruticultura; Propagação de Frutiferas flow cytometry; Silicic acid; Passiflora edulis Propagação de frutiferas. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30939 |
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| Fialho, Cíntia Maria Teixeira; Silva, Gustavo Soares da; Faustino, Laís Araújo; Carvalho, Felipe Paolinelli de; Costa, Mauricio Dutra; Silva, Antonio Alberto da. |
| The purpose of this study was to evaluate the effects of mycorrhizal association on the interference of Bidens pilosa, Urochloa decumbens and Eleusine indica on soybean culture in two conditions: a) plants competing without contact with roots of another species; b) with contact between roots. At 60 days after planting, growth, nutrient accumulation and mycorrhizal colonization of soybean and weeds were evaluated. The contact between roots of soybean plant and weed species increased the negative interference effects for both species, with less growth and nutrient accumulation. With the individualization of roots, higher competition occurred for soil resources up to 60 days of coexistence between species. In competition with soybean, Bidens pilosa and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fitotecnia; Microbiologia agrícola; Matologia Bidens pilosa; Urochloa decumbens (Syn. Urochloa decumbens); Eleusine indica; Arbuscular mycorrhiza fungi Matologia. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27230 |
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| Pereira, Carlos Eduardo; Universidade Estadual de Santa Cruz; Moreira, Fátima Maria de Souza; Universidade Federal de Lavras; Oliveira, João Almir; Universidade Federal de Lavras; Caldeira, Carla Massimo; Universidade Federal de Lavras. |
| This research evaluated the development of soybean plants grown in a greenhouse, from seeds that were treated with fungicide, film coated and inoculated with Bradyrhizobium. Seeds from the soybean cultivar ‘Vencedora’ were submitted to treatments disposed in a factorial 5 x 3 x 2 design. The seeds were treated with Derosal Plus® with polymer; Tegran® with polymer; Derosal Plus® without polymer, Tegran® without polymer; and without fungicide and without polymer. After the chemical treatment, the seeds were inoculated with peat or liquid inoculants, and without inoculant. The chemical treatments were used either previous to or after the six months of storage. Seed inoculation was performed with CPAC15 and BR29 strains,... |
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Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.01.01.04-8; 5.01.02.05-2; 5.01.03.00-8; 5.01.03.03-2 Glycine Max; Polymer; Tegran; Derosal Plus; Bradyrhizobium Ciências Agrárias; Agronomia; Microbiologia e Bioquímica do Solo; Defesa Fitossanitária; Fitotecnia; Produção e Beneficiamento de Sementes Glycine Max; Polymer; Tegran; Derosal Plus; Bradyrhizobium. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5756 |
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| Oliveira, Túlio Gabriel Soares; Universidade Federal de Lavras - UFLA; Rodrigues Junior, Ailton Gonçalves; Universidade Federal de Lavras - UFLA; Souza, Patrícia Pereira de; Universidade Federal de Viçosa - UFV; Ribeiro, Leonardo Monteiro; Universidade Estadual de Montes Claros - Unimontes. |
| The macaw palm is a tropical palm with significant potential for biofuel production; however, seed dormancy is a major factor limiting its agro-industrial use. The present study evaluated the effects of phytoregulators in overcoming macaw palm seed dormancy. We evaluated the effects of immersion in solutions of gibberellic acid (GA3) (0, 2000 and 5000 mg L-1) during two exposure times (24 and 48 hours), associated with the removal or maintenance of the opercular tegument, as well as the effects of the associations between GA3 (2000 mg L-1), indole-3-butyric acid (IBA) and benzylaminopurine (BAP) and the effects of repeated applications (one, two or five) of combinations of these phytoregulators. The seeds were sown in vermiculite and incubated in a humid... |
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Palavras-chave: 5.00.00.00-4; 5.01.03.00-8 Acrocomia aculeata; Germination; GA3; IBA; BAP; Arecaceae Ciências Agrárias; Fitotecnia. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/16385 |
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| Silva, Marcus Vinícius Vieira da; Instituto Federal Goiano; Sales, Juliana de Fátima; Instituto Federal Goiano; Silva, Fabiano Guimarães; Instituto Federal Goiano; Neto, Aurélio Rubio; Instituto Federal Goiano; Alberto, Paula Sperotto; Instituto Federal Goiano; Pereira, Flávia Dionísio; IFGoiano - Campus Rio Verde. |
| The objective of this study was to evaluate the physiological quality of babassu (Orbignya phalerata Mart.) embryos as a function of desiccation. The fruits were placed in a convection oven at 37±2°C for 0, 3, 6, 9, or 12 days. After these periods, the moisture contents of the fruits and seeds were determined. A reduction in the water content occurred more rapidly in the fruits than in the seeds. The decrease in seed moisture content from 12.59% (on the basis of fresh weight) to 4.56% did not affect the percentage of germinated zygotic embryos; however, we did observe a decline in the vigor as the seed moisture content decreased. Embryos with a 4.56% moisture content developed into seedlings of shorter lengths after 30, 60, and 90 days of in vitro growth.... |
| Tipo: Pesquisa Empírica |
Palavras-chave: 5.01.03.00-8 Arecaceae; Desiccation tolerance; Tissue culture; Fitotecnia. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13429 |
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| Paiva, Emanoela Pereira de; Torres, Salvador Barros; Alves, Tatianne Raianne Costa; Sá, Francisco Vanies da Silva; Leite, Moadir de Sousa; Dombroski, Jeferson Luiz Dallabona. |
| Most plant species are susceptible to the effects of salinity, such as increases in osmotic potentials and deleterious ionic effects, which in turn affect water absorption in plants and, consequently, compromise germination and seedling growth. Hence, this study aimed to evaluate the effects of salinity on the germination, initial growth, and physiological and biochemical components of S. hispanica seedlings at different temperatures. The experimental design was completely randomized, with treatments distributed in a 5 x 4 factorial scheme with five saline concentrations (0.0 (control), 4.5, 9.0, 13.5, and 18.0 dS m-1) four temperature regimes (20, 25, 30, and 20-30°C), and four replicates of 50 seeds per treatment. The experiment evaluated the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Produção Vegetal; Fitotecnia; Produção e Tecnologia de Sementes Lamiaceae; Chia; Salt stress; Thermal stress. Produção e Beneficiamento de Sementes. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39396 |
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| Registros recuperados: 54 | |
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