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| Registros recuperados: 307 | |
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| Salgado Meraz, Lilia. |
| Variedades cultivadas y silvestres de jitomate (Lycopersicon esculentum), se encuentran aún en diferentes regiones de México. Sin embargo, la extensión de la diversidad y del grado de variación en características determinantes de la calidad entre acervos genéticos y entre poblaciones mexicanas de jitomate es desconocida. Este estudio se realizó para evaluar la calidad del fruto de 31 poblaciones autóctonas, originarias de ocho regiones del centro, sur y sureste de México, así como del híbrido Caimán y un grupo de 3 poblaciones derivadas. Las poblaciones se cultivaron en invernadero e hidroponía en la primavera de 2008. En frutos del tercer y cuarto racimos, en diferentes estados de madurez, se midieron firmeza, vida de anaquel, luminosidad, ángulo de tono,... |
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Palavras-chave: Lycopersicon esculentum; Calidad; Población nativa; Diversidad; Reservorio genético; Quality; Landrace; Diversity; Genetic reservoir; Maestría; Fruticultura. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/396 |
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| Flores Ysita, Sergio; Schreiner, Dean F.. |
| Un factor que facilita tomar una decisión óptima a los productores y consumidores de productos agrícolas, es la disponibilidad de información sobre los distintos mercados agrícolas. El presente estudio analiza los diversos factores que determinan la oferta y demanda de jitomate mexicano en dos mercados, durante el primer semestre del año: 1) el mercado exterior y, 2) el mercado nacional. A su vez, se analizó la interrelación entre estos dos mercados. Se obtuvieron resultados cuantitativos que indican la influencia que tiene la demanda externa, sobre la oferta potencial nacional, y la consecuente relación entre los precios en el mercado nacional y los cambios en dicha oferta. Asimismo, se muestran los efectos que causa un cambio del ingreso per capita, en... |
| Tipo: Artículo |
Palavras-chave: Economía agrícola; Lycopersicon esculentum; Producción de cultivos; Jitomates; Exportaciones; Economía de la producción. |
| Ano: 1967 |
URL: http://hdl.handle.net/10521/1798 |
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| Guzmán Moreno, Marco Antonio. |
| Se realizaron cruzas a partir de accesiones de jitomate riñón, de Hidalgo, Puebla y Tabasco, con resistencia de tipo cuantitativa a Fusarium oxysporum, que fungieron como receptores, con un genotipo comercial de tipo saladet (Variedad. Río Grande), que fue el donador de polen, para obtener híbridos resistentes y con frutos de forma redonda y lisa. También se realizó selección a partir de jitomates riñón por forma redonda, lisa y con resistencia a enfermedades. Se realizó el avance generacional de los híbridos así como de los genotipos seleccionados, posteriormente se sembraron en campo las cruzas en F2, genotipos seleccionados, genotipos criollos no seleccionados (testigo) y el testigo general (Río Grande), para conocer su reacción frente a los patógenos... |
| Tipo: Tesis |
Palavras-chave: Lycopersicon esculentum; Hibridos; Selección masal recurrente; Resistencia horizontal; Resistencia cuantitativa; Resistencia durable; Maestría; Fitopatología; Hybrids; Kidney shaped tomatoes; Recurrent mass selection; Horizontal resistance; Durable resistance. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1636 |
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| Salgado Meraz, Lilia. |
| Variedades cultivadas y silvestres de jitomate (Lycopersicon esculentum), se encuentran aún en diferentes regiones de México. Sin embargo, la extensión de la diversidad y del grado de variación en características determinantes de la calidad entre acervos genéticos y entre poblaciones mexicanas de jitomate es desconocida. Este estudio se realizó para evaluar la calidad del fruto de 31 poblaciones autóctonas, originarias de ocho regiones del centro, sur y sureste de México, así como del híbrido Caimán y un grupo de 3 poblaciones derivadas. Las poblaciones se cultivaron en invernadero e hidroponía en la primavera de 2008. En frutos del tercer y cuarto racimos, en diferentes estados de madurez, se midieron firmeza, vida de anaquel, luminosidad, ángulo de tono,... |
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Palavras-chave: Lycopersicon esculentum; Calidad; Población nativa; Diversidad; Reservorio genético; Quality; Landrace; Diversity; Genetic reservoir; Maestría; Fruticultura. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/396 |
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| Montealegre,Jaime R; Herrera,Rodrigo; Velásquez,Juan Carlos; Silva,Polyana; Besoaín,Ximena; Pérez,Luz María. |
| Trichoderma harzianum 650 (Th650) and Paenebacillus lentimorbus 629 (Pl629) selected earlier for their ability to control Rhizoctonia solani, Fusarium solani and F. oxysporum in vitro, were applied alone or combined with solarization (summer assay) and/or with methyl bromide (MeBr) (summer and winter assays) to a soil with a high inoculum level, for the control of tomato root rot caused by the complex F. oxysporum f. sp. lycopersici - Pyrenochaeta lycopersici - Rhizoctonia solani. Evaluations were also performed independently for root damage caused by P. lycopersici, and also for R. solani in the summer assay. MeBr decreased tomato root damage caused by the complex from 88.7% to 21.2% and from 78.4% to 35.7% in the summer and in the winter assay,... |
| Tipo: Journal article |
Palavras-chave: Fusarium oxysporum; Lycopersicon esculentum; Pyrenochaeta lycopersici; Rhizoctonia solani; Solarization. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300004 |
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| Magalhães,Ana M.; Ferreira,Marcos D.; Moretti,Celso L.. |
| A etapa de limpeza em uma linha de beneficiamento para tomate de mesa é muito importante, pois retira as impurezas externas dos frutos, todavia poucos são os métodos utilizados para avaliar a eficácia desse processo. Assim, o objetivo deste trabalho foi avaliar duas metodologias com relação à eficácia do processo de limpeza. As metodologias estudadas foram: análise com o colorímetro e análise com o turbidímetro. Os ensaios foram realizados em laboratório, na etapa de limpeza do protótipo UNIMAC (Unidade Móvel de Auxílio à Colheita), utilizando-se de esferas de borracha, com peso similar ao tomate, que foram sujas artificialmente e passaram pela limpeza no protótipo com cerdas de náilon e rotação de 100 rpm. Observou-se que o método de análise com o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Colorímetro; Turbidímetro. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162009000400020 |
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| Silva,Tonny J. A. da; Pacheco,Adriano B.; Bonfim-Silva,Edna M.; Duarte,Thiago F.. |
| ABSTRACT The quality of cherry tomato fruits is directly related to the management strategies used in the production system, such as irrigation and fertilization. This study aimed to assess the quality of cherry tomato fruits cultivated under water availability and potassium fertilization. The experiment was carried out in a greenhouse in pots of 12 dm3 of an Oxisol. The experimental design was a randomized block design in a 52 fractional factorial arrangement with five water availabilities in the soil (4, 14, 24, 34, and 44 -kPa), five potassium doses (0, 125, 250, 375, and 500 mg dm−3) and with four blocks. Irrigation was performed with a semi-automated drip irrigation system with soil moisture monitoring by the Diviner 2000® capacitance probe. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil water; Diviner 2000; Lycopersicon esculentum; Mill. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000500657 |
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| Abreu,Flávia Barbosa; Silva,Derly José Henriques da; Marim,Bruno Garcia; Carneiro,Pedro Crescêncio Souza; Juhasz,Ana Cristina Pinto; De Luca,Carina A.C.; Valente,Reginaldo Fialho; Guimarães,Marcelo Almeida. |
| This study presents the minimum number and the best combination of tomato harvests needed to compare tomato accessions from germplasm banks. Number and weight of fruit in tomato plants are important as auxiliary traits in the evaluation of germplasm banks and should be studied simultaneously with other desirable characteristics such as pest and disease resistance, improved flavor and early production. Brazilian tomato breeding programs should consider not only the number of fruit but also fruit size because Brazilian consumers value fruit that are homogeneous, large and heavy. Our experiment was a randomized block design with three replicates of 32 tomato accessions from the Vegetable Germplasm Bank (Banco de Germoplasma de Hortaliças) at the Federal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Genetic resources; Principal components; Repeatability coefficient; Determination coefficient. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000100021 |
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| Abreu,Flávia Barbosa; Silva,Derly José Henriques da; Cruz,Cosme Damião; Mizubuti,Eduardo Seiti Gomide. |
| In Brazil, no commercial tomato (Solanum lycopersicum L. formerly Lycopersicon esculentum Mill.) varieties are available which are resistant to the late blight, one of the most important tomato diseases, produced by the phytopathogenic oomycete Phytophthora infestans. The wild tomato (Solanum habrochaites Knapp & Spooner, formerly Lycopersicon hirsutum Dunal) shows resistance to P. infestans, because of which we investigated an interspecific cross between S. lycopersicum cv. Santa Clara and S. habrochaites accession BGH 6902 maintained at the Horticultural Germplasm Bank at the Federal University of Viçosa (Banco de Germoplasma de Horticultura (BGH), Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil) The genitors, F1, F2, BC1 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Late blight; Lycopersicon esculentum; Lycopersicon hirsutum; Solanum lycopersicum; Solanum habrochaites. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300016 |
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| Toledo,Débora S; Costa,Cândido A; Bacci,Leandro; Fernandes,Luiz A; Souza,Manoel F. |
| Information about the production and quality of tomato cultivars under organic management and the conditions of climate and soil from the north region of Minas Gerais State, Brasil, are scarce. Thus, this research was carried out to evaluate the production and quality of tomato cultivars under organic management, in this region. The treatments consisted of four open pollination tomato cultivars (Chadwick Cherry, Pitanga vermelha, Santa Clara and Santa Cruz Kada) and five hybrid cultivars (Marguerita, Nicolas, Ellen, Magestade and Dominador). The experimental design was of randomized blocks with three replications. The experiment was carried out using organic fertilization in the initial preparation of the area, compost and rock phosphate and sprays with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Organic cropping; Green manure. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000200022 |
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| Cecílio Filho,Arthur Bernardes; Rezende,Bráulio Luciano A; Costa,Caciana C. |
| Lettuce and tomato are vegetables that can be grown in protected cultivation, under given conditions. Considering their expensive production systems, intercropping might be an excellent alternative to optimize costs. Four experiments were carried out at the São Paulo State University (UNESP), at Jaboticabal, Brazil, to study the economic viability of intercropping lettuce and tomato under protected cultivation. To set the intercropping, lettuce was transplanted 0, 10, 20, and 30 days after transplanting (DAT) tomato and vice-versa, in two seasons, namely April to September 2003 and January to June 2004, when monocultures of both vegetables were also carried out. At the first planting season, operational profits (OP) in intercropping (lettuce transplanted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactuca sativa; Lycopersicon esculentum; Intercropping; Protected cultivation; Economic feasibility; Profitability. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000300015 |
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| Registros recuperados: 307 | |
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