Browsing Agronomía by Title
Now showing items 302-321 of 683
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Factores que influyen en la embriogénesis somática in vitro de palmas (Arecaceae)
(2011-12)La embriogénesis somática (ES) es una vía de desarrollo in vitro que presenta una serie de ventajas sobre otras técnicas utilizadas para la regeneración de palmas. Esta técnica tiene gran potencial para superar las ... -
Factors affecting the biological control of the spiralling whitefly Aleurodicus dispersus (Hemiptera:Aleyrodidae) in banana plantations in Costa Rica: a study case
(2018)A study was conducted to reveal the causes for Aleurodicus dispersus outbreak in commercial banana plantations in Costa Rica. Biotic and abiotic factor affecting affecting the abundance of the spiralling whitefly were ... -
Fascículo 2: importancia, síntomas y manejo de las principales enfermedades del frijol (Phaseolus vulgaris L.)
(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 3: uso del análisis químico para la determinación de la fertilidad de suelos en el cultivo del frijol (Phaseolus vulgaris L.)
(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 4: manejo integrado de malezas en frijol común (Phaseolus vulgaris L.)
(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 5: manejo Agronómico del cultivo del frijol (Phaseolus vulgaris L.)
(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
(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 ... -
Fatty acids and triacylglycerols in the mesocarp and kernel oils of maturing Costa Rican Acrocomia aculeata fruits
(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 ... -
Field Survey of Cucumber mosaic virus Subgroups I and II in Crop Plants in Costa Rica
(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 Report of an Aster Yellows Subgroup 16SrI-B Phytoplasma Infecting Chayote in Costa Rica
(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
(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
(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
(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
(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
(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
(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
(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
(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, ...