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    • Fascículo 5: manejo Agronómico del cultivo del frijol (Phaseolus vulgaris L.) 

      Henríquez, Germán Raúl; Prophete, Emmanuel; Orellana, Carlos (Universidad de Costa Rica, 1995)
      La serie de siete fascículos sobre Tecnología de Producción de Frijol es parte del conjunto de materiales publicados por el CIAT en colaboración con la red de investigación en frijol (PROFRIJOL), apoyada por la Cooperación ...

    • Fascículo 6: variedades mejoradas de frijol (Phaseolus vulgaris L.): concepto, obtención y manejo 

      Araya Villalobos, Rodolfo; Rodríguez C., Rafael; Molina C., Julio César; Ramos M., Federico Trece (Universidad de Costa Rica, 1995)
      La serie de siete fascículos sobre Tecnología de Producción de Frijol es parte del conjunto de materiales publicados por el CIAT en colaboración con la red de investigación en frijol (PROFRIJOL), apoyada por la Cooperación ...

    • Fast seed histology protocols: Benzene derivatives-free vs xylene-dependent 

      Benavides Acevedo, Miguel Francisco; Torres Segura, Jéssika (2022-10)
      Introduction. Seeds are complex structures that allow the biological and crop propagation of plants. Seed histology can be used for teaching, researching, and for pathological diagnostic. Histology protocols are ...

    • Fate of spoilage and pathogenic microorganisms in acidified cold-filled hot pepper sauces 

      Lobo Chinchilla, Ariela; Zúñiga Arrieta, Carolina; Worobo, Randy W.; Padilla Zakour, Olga I.; Usaga Barrientos, Jessie (2019)
      Consumption of spicy foods and hot sauces is currently a popular trend worldwide. Shelf-stable acidified sauces are commonly hot-filled to ensure commercial sterility, but cold-fill-hold processes might also be suitable ...

    • Fatty acids and triacylglycerols in the mesocarp and kernel oils of maturing Costa Rican Acrocomia aculeata fruits 

      Lieb, Veronika M.; Schex, Roland; Esquivel Rodríguez, Patricia; Jiménez García, Víctor; Schmarr, Hans-Georg; Carle, Reinhold; Steingass, Christof Björn (2019-03)
      Total lipids, fatty acids, and triacylglycerols in mesocarp and kernels from Costa Rican Acrocomia aculeata fruits were characterized at three maturity stages. C16:0 and C18:1n9 were the most abundant fatty acids in the ...

    • Fertilización con nitrógeno y potasio en maíz en un Alfisol de Guanacaste, Costa Rica 

      Garbanzo León, Juan Gabriel; Alvarado Hernández, Alfredo; Vargas Rojas, Jorge Claudio; Cabalceta Aguilar, Gilberto; Vega Villalobos, Edgar Vidal (2021)
      Introducción. En Guanacaste, Costa Rica, el maíz (Zea mays) es un cultivo de consumo cultural desde épocas precolombinas, muchos agricultores destinan zonas para su siembra en asocio con otros cultivos. Sin ...

    • Field performance of hermaphrodite papaya plants obtained through molecular selection and micropropagation 

      Araya Valverde, Emanuel; Bogantes Arias, Antonio; Holst Sanjuán, Andrea; Vargas Mora, Cristian; Gómez Alpízar, Luis; Brenes Angulo, Arturo; Sánchez Barrantes, Elodia María; Chavarría Vargas, Max; Barboza Barquero, Luis Orlando (2019)
      Most commercial papaya varieties segregate hermaphrodite and female plants. Growers normally select hermaphrodite plants in the field, due to market preferences. This requires planting multiple plants per site and later ...

    • Field Survey of Cucumber mosaic virus Subgroups I and II in Crop Plants in Costa Rica 

      Hord Dedmon, Melanie Jane; García Piñeres, Alfonso J.; Villalobos Barrantes, Heidy M.; Rivera Herrero, Carmen; Macaya Trejos, Gabriel; Roossinck, Marilyn J. (2001-09)
      Leaf samples were collected from cucurbit and solanaceous crop plants and Musa spp. in 28 locations in five provinces of Costa Rica during the period from January to October 1996. Sampling sites were selected in dry, humid, ...

    • First insights into the prokaryotic community structure of Lake Cote, Costa Rica: Influence on nutrient cycling 

      Brenes Guillén, Laura Natalia; Vidaurre Barahona, Daniela; Avilés Vargas, Lidia; Castro Gutiérrez, Víctor Manuel; Gómez Ramírez, Eddy; González Sánchez, Kaylen; Mora López, Marielos; Umaña Villalobos, Gerardo; Uribe Lorío, Lorena; Hassard, Francis (2022-10-03)
      Prokaryotic diversity in lakes has been studied for many years mainly focusing on community structure and how the bacterial assemblages are driven by physicochemical conditions such as temperature, oxygen, and nutrients. ...

    • First Report of a Phytoplasma Associated with Witches'-Broom of the Giant Coral Tree (Erythrina poeppigiana,Fabaceae) in Costa Rica 

      Saborío Rodríguez, Guido Alonso; Villalobos Muller, William (2007-11)

    • First Report of an Aster Yellows Subgroup 16SrI-B Phytoplasma Infecting Chayote in Costa Rica 

      Villalobos Muller, William; Moreira Carmona, Lisela; Rivera Herrero, Carmen; Bottner Parker, Kristi D.; Lee, Ing-Ming (2002-03)
      An outbreak of a witches' broom disease affected approximately 20% of plants in several chayote (Sechium edule (Jacq.) Schwartz) fields in the commercial production area of the Ujarrás Valley, Cartago Province, Costa Rica ...

    • First Report of Citrus Blight in Costa Rica 

      Villalobos Muller, William; Moreira Carmona, Lisela; Derrick, Kenneth S.; Beretta, M.J.G.; Lee, Richard F.; Rivera Herrero, Carmen (2005-01)
      Citrus blight (CB), causing a chronic decline of citrus, has been an important disease in Florida for over 100 years. CB was first reported in Brazil in the 1980s and is now responsible for the removal of nearly 10% of the ...

    • First Report of Citrus variegation virus in Palestine Sweet Lime, as Coffee Shade in Costa Rica 

      Moreira Carmona, Lisela; Albertazzi Castro, Federico José; Garita Salazar, Laura Cristina; Ortiz Arias, Beatriz; Villalobos Muller, William (2011)
      Symptoms resembling those of Citrus variegation virus (CVV) were observed in old Palestine sweet lime trees (Citrus limettioides Tan.) used as coffee shade in the Central Valley in Costa Rica. The symptoms include leaf ...

    • First report of Iris yellow spot virus in Costa Rica 

      Montero Astúa, Mauricio; Dejuk Protti, Natasha; Vásquez Céspedes, Elena; Garita Salazar, Laura Cristina; Moreira Carmona, Lisela (2017)
      Iris yellow spot virus (IYSV), an emerging disease of onion crops, was identified by transmission electron microscopy, enzyme linked immunosorbent assay, and reverse transcription polymerase chain reaction in Costa Rica. ...

    • First Report of New Phytoplasma Diseases Associated with Soybean, Sweet Pepper, and Passion Fruit in Costa Rica 

      Villalobos Muller, William; Moreira Carmona, Lisela; Rivera Herrero, Carmen; Lee, Ing-Ming (2009-02)
      A new soybean disease outbreak occurred in 2002 in a soybean (Glycine max) plantation in Alajuela Province, Costa Rica. Symptoms on the affected plants included general stunting, small leaves, formation of excessive buds, ...

    • First Report of Orchid fleck virus in Costa Rica 

      Moreira Carmona, Lisela; Rivera Herrero, Carmen; Rodríguez Solís, Carlos Mario; Kitajima, Elliot Watanabe; Freitas Astúa, Juliana (2002-12)
      Orchid fleck virus (OFV), a tentative member of the family Rhabdoviridae, infects orchids in several countries. The virus is vectored worldwide by the mite Brevipalpus californicus (Banks) (Acari: Tenuipalpidae). Eleven ...

    • First Report of Potato Spindle Tuber Viroid in Costa Rica 

      Badilla Porras, Ramsés; Hammond, Rosemarie W.; Rivera Herrero, Carmen (1999-11)
      During 1997 to 1998, symptoms of leaf roll, dwarfism, chlorosis, and occasional leaf necrosis were observed on Solanum tuberosum in several plots in Cartago, the principal potato-production region of Costa Rica. Because ...

    • First report of Sugarcane yellow leaf virus (ScYLV) in Costa Rica 

      Ávila Arias, Roberto; Arrieta Méndez, Marie-Claire; Villalobos Muller, William; Moreira Carmona, Lisela; Chavarría Soto, Erick; Lockhart, Benham E.; Rivera Herrero, Carmen (2001-03)
      In Costa Rica, sugarcane plants with symptoms similar to those described for yellow leaf syndrome (YLS) (1,2) were first observed in 1994 in research plots of imported material in the midland areas of San Carlos and ...

    • First Report of the Cymbidium Mosaic Potexvirus (CymMV) Infecting the Terrestrial Orchid Phaius tankervilliae in Costa Rica 

      Moreira Carmona, Lisela; Villalobos Muller, William; Hsu, H.T.; Rodríguez Cerezo, Emilio; Rivera Herrero, Carmen (1998-10)
      In 1996, plants of the terrestrial orchid Phaius tankervilliae from a nursery in the Central Valley of Costa Rica were observed with mild to severe foliar symptoms of chlorotic streak. No differences were observed in growth, ...

    • First Report of Xylella fastidiosa in Avocado in Costa Rica 

      Montero Astúa, Mauricio; Saborío Rodríguez, Guido Alonso; Chacón Díaz, Carlos; Garita Salazar, Laura Cristina; Villalobos Muller, William; Moreira Carmona, Lisela; Hartung, John; Rivera Herrero, Carmen (2008-01)
      Since the late 1990s, chlorotic mottling, marginal scorch, deformation of leaves, defoliation, shortening of internodes, and branch dieback have been observed in avocado trees (Persea americana Mill.) in Costa Rica. The ...