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| Registros recuperados: 106 | |
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| Cervantes Angeles, Alicia. |
| Se caracterizaron los sistemas de producción de jitomate en el Valle del Mezquital, Hidalgo; identificando a cuatro siendo: a) cielo abierto, y en invernadero con tres variantes b) producido en suelo (camas), c) en tezontle (bolsa) y d) mezcla de sustratos (tezontle-composta en bolsa), este último sistema se propuso y desarrolló experimentalmente en esta investigación. Para el análisis de cada método de producción se utilizó el muestreo no probabilístico “bola de nieve” (Cornelius, 1981) para identificar a los productores a quienes se les aplicaron entrevistas. El cuestionario incluyó una sección de características productivas, tecnológicas, de comercialización y económicas. Se encontró que los cuatro sistemas presentaron notables diferencias en todos... |
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Palavras-chave: Sistema de producción; Rentabilidad; Jitomate; Production of systems; Profitability; Tomato; Economía; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/504 |
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| Campos García, Huitziméngari. |
| Se estudió el efecto de tres niveles de secado parcial de la raíz (SPR) en comparación con riego convencional, en términos de intercambio de gases, relaciones hídricas, crecimiento, ajuste osmótico, rendimiento, calidad del fruto, estado nutrimental y eficiencia en el uso del agua en tomate (Lycopersicon esculentum Mill.). Se aplicaron cuatro tratamientos: Testigo, en el que la humedad aprovechable residual (HAR) en el sistema radical completo se permitió llegara hasta un 90 %; SPR90-30, en donde en un lado de la raíz dividida la HAR se permitió llegara al 90 % y el otro al 30 %; PRD70-30, en donde en un lado de la raíz dividida la HAR llegó al 70 % y el otro al 30 %; y PRD50-30 en donde en un lado de la raíz dividida la HAR llegó al 50 % y el otro al 30... |
| Tipo: Tesis |
Palavras-chave: Secado parcial de la raíz; Intercambio de gases; Eficiencia en el uso del agua.; Rendimiento.; Calidad del fruto.; Tomate; Maestría; Fisiología Vegetal; Partial rootzone drying; Gas exchange.; Water use efficiency; Yield; Fruit quality; Tomato. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1596 |
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| Cervantes Angeles, Alicia. |
| Se caracterizaron los sistemas de producción de jitomate en el Valle del Mezquital, Hidalgo; identificando a cuatro siendo: a) cielo abierto, y en invernadero con tres variantes b) producido en suelo (camas), c) en tezontle (bolsa) y d) mezcla de sustratos (tezontle-composta en bolsa), este último sistema se propuso y desarrolló experimentalmente en esta investigación. Para el análisis de cada método de producción se utilizó el muestreo no probabilístico “bola de nieve” (Cornelius, 1981) para identificar a los productores a quienes se les aplicaron entrevistas. El cuestionario incluyó una sección de características productivas, tecnológicas, de comercialización y económicas. Se encontró que los cuatro sistemas presentaron notables diferencias en todos... |
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Palavras-chave: Sistema de producción; Rentabilidad; Jitomate; Production of systems; Profitability; Tomato; Economía; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/504 |
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| Cih Dzul, Imelda Rosana. |
| La producción de jitomate es una de las actividades agrícolas más importantes y generadoras de ingreso en México. Sin embargo, existen problemas técnicos y económicos a los que se enfrenta tanto en el proceso de producción como de comercialización. El objetivo de este estudio fue identificar los sistemas de producción del cultivo de jitomate en el estado de Jalisco, para conocer la lógica de producción y distribución a los diferentes mercados, así como los factores que determinan la permanencia del sistema productivo. Los resultados indican que la producción se localiza en: Sayula, La Ciénega, Sierra de Amula, Costa Sur, y Zapotlán El Grande. 84% de los productores utilizó el sistema a campo abierto, 8% bajo invernadero, 4% con malla sombra y 4% combina... |
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Palavras-chave: Jitomate; Mercado; Transmisión de precios; Tomato; Market; Price transmission; EDAR; Doctorado; Estrategías para el Desarrollo Agrícola Regional. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/295 |
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| Montealegre,Jaime; Valderrama,Luis; Sánchez,Soledad; Herrera,Rodrigo; Besoain,Ximena; Pérez,Luz María. |
| Biocontrol of Rhizoctonia solani in tomatoes cultivated under greenhouse and field conditions was analyzed using the Trichoderma harzianum mutants Th650-NG7, Th11A80.1, Th12A40.1, Th12C40.1 and Th12A10.1 and ThF2-1, respectively. Their innocuousness on tomato cultivars 92.95 and Gondola (greenhouse assays), and on cultivar Fortaleza (field assays) was established. Alginate pellets (1.7 g pellets/L soil) containing c.a1 x 10(5) colony forming units (cfu)/g pellet were applied to a soil previously inoculated with R. solani at transplant (greenhouse) or to a naturally infected soil (field). Controls considered parental wild strains, a chemical fungicide and no additions. Th11A 80.1, Th12A10.1 and Th650-NG7 prevented the 100% mortality of tomato plants cv.... |
| Tipo: Journal article |
Palavras-chave: Bioantagonism; Field assays; Greenhouse assays; Root rot; Tomato. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000200001 |
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| Montealegre,Jaime; Valderrama,Luis; Herrera,Rodrigo; Besoaín,Ximena; Pérez,Luz M. |
| Wild (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A40.1, Th12C40.1 and Th650-NG7) Trichoderma harzianum strains were stored for 180 days at 5ºC or at 22ºC, in two types of soils. Strains recovered at 90, 120 and 180 days from the two types of soils, retained their full capacity to biocontrol Rhizoctonia solani 618, that produces crown and root rot of tomatoes. Recovery, estimated as colony forming units (cfu) of the wild and mutant strains, showed that all increased their cfu after storage independently of the type of soil and temperature, although kinetic behavior differed among strains. Ratios of recovery after storage in type B soil/ type A soil or at 22ºC/5ºC, higher or lower than one respectively, allowed to establish that Th11 and Th12 were the... |
| Tipo: Journal article |
Palavras-chave: Bioantagonism; Persistence; Root rot; Tomato. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000400002 |
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| Guo,Xuhu; Xie,Qian; Li,Baoyuan; Su,Huanzhen. |
| Abstract DNA methylation plays an important role in plant growth and development, gene expression regulation, and maintenance of genome stability. However, only little information regarding stress-related DNA methyltransferases (MTases) genes is available in tomato. Here, we report the analysis of nine tomato MTases, which were categorized into four known subfamilies. Structural analysis suggested their DNA methylase domains are highly conserved, whereas the N-terminals are divergent. Tissue-specific analysis of these MTase genes revealed that SlCMT2, SlCMT3, and SlDRM5 were expressed higher in young leaves, while SlMET1, SlCMT4, SlDRM7, and SlDRM8 were highly expressed in immature green fruit, and their expression declined continuously with further fruit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA methylation; Tissue-specific expression; Abiotic stress; Fruit ripening; Tomato. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100307 |
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| Vieira,Débora de FA; Clemente,Flávia Maria VT. |
| ABSTRACT Farmers and the rural extension service in Planaltina, in the Federal District, an important pole of tomato and sweet pepper production in the Brazilian Midwest region, have been observing decreases in yield in protected cultivation lately. Yields are getting back to those registered in initial years of the system’s implementation in the region. Besides, prices paid to farmers dropped due to the retreat in fruit and vegetable consumption by Brazilians registered since 2015, triggering a crisis in the region. The so-called “Harvest-Expedition on Protected Cultivation” brought together Embrapa (Brazilian Agricultural Research Corporation), Emater-DF (Federal District Agency for Technical Assistance and Rural Extension) and SEAGRI-DF (State... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diagnosis; Tomato; Sweet pepper; Management; Scenarios. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400431 |
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| Giordano,Leonardo de B; Boiteux,Leonardo S; Quezado-Duval,Alice M; Fonseca,Maria Esther de N; Resende,Francisco V; Reis,Ailton; González,Matías; Nascimento,Warley Marcos; Mendonça,José L. |
| 'BRS Tospodoro' is a high lycopene tomato cultivar, which combines multiple disease resistance genes and desirable processing traits. This cultivar was found to be suitable for both conventional and organic crop systems. 'BRS Tospodoro' was obtained via backcross breeding using 'Viradoro' as recurrent parent and the inbred line 'CNPH 1306' as the donor of the Pto gene (resistance to Pseudomonas syringae pv. tomato race 0). 'BRS Tospodoro' has the Mi1-2 gene that controls resistance to root-knot nematodes (Meloidogyne incognita, M. javanica, and M. arenaria) as well as tolerance to populations of the aphid Macrosiphum euphorbiae (vector of Potyvirus species), and to whiteflies (Bemisia tabaci). 'BRS Tospodoro' has also the Sw-5b gene, which controls... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Tomato; Breeding; Organic cropping. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000200019 |
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| Camargo Filho,Waldemar P; Camargo,Felipe P. |
| ABSTRACT In the biennium 2013-14, the world produced 1,134.27 million tons of vegetables annually. The production of garlic, onion, potato, tomato and watermelon accounted for 66.5% of the total. Brazil, in 2012, considering 40 vegetables, produced around 23 million tons, in 900.0 thousand hectares. Potatoes, tomatoes (table and processing), onions, watermelons, carrots, sweet potatoes, lettuce and cabbage, the main vegetables in Brazil, accounted for 64.0% of the total. This work presents the evolution of production, commercialization, and availability of garlic, onions, potatoes, tomatoes and watermelons in Brazil and in the world. In Brazil, the work focused on two distinct periods: 1970-1990 {when the Support Program for Production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cultivated area; Production; Public policies; Garlic; Onion; Potato; Tomato; Watermelon.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200160 |
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| Boiteux,Leonardo Silva; Oliveira,Valter Rodrigues; Silva,Cézar Honório; Makishima,Nozomu; Inoue-Nagata,Alice K; Fonseca,Maria Esther de Noronha; Giordano,Leonardo de Britto. |
| The number of tomato-infecting begomoviruses has increased in Brazil after the introduction of the polyphagous vector Bemisia tabaci biotype B. The Ty-1 locus, introgressed from Lycopersicon chilense, controls tolerance to species of the monopartite Tomato yellow leaf curl virus (TYLCV) complex in Europe and the Middle East. However, little information is available about the Ty-1 effectiveness against species of the bipartite Begomovirus complex occurring in Brazil. Heterozygous (Ty-1/ty-1) and homozygous (ty-1/ty-1) hybrids were evaluated for reaction to Begomovirus isolates under open field conditions in two growing areas in Central Brazil. Test plants were evaluated under natural inoculation with high vector pressure. Evaluation was done using a disease... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bipartite geminivirus; Lycopersicon chilense; Resistance; Tomato. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362007000100005 |
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| Registros recuperados: 106 | |
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