Browsing Agronomía by Title

Papaya

Jiménez García, Víctor (2015-01-01)

Papaya (Carica papaya) is a semiwoody, usually single-stemmed, herbaceous plant (Fig. 1). It originated along the Caribbean lowlands of Mesoamerica and is now extensively and exclusively distributed in tropical and subtropical ...

Papaya fruit image analysis in a segregating F2 mapping population

Valerio Cubillo, Ovidio; Bogantes Arias, Antonio; Rojas, Felipe; van Erp, Willem; Araya Valverde, Emanuel; Zuñiga Centeno, Adonay; Sáenz Murillo, Marco Vinicio; Mora Newcomer, Eric; Barboza Barquero, Luis Orlando (2019)

Image analysis can be used to phenotype papaya fruits and to extract from single images as many fruit properties as possible. This becomes especially attractive for mapping large populations, which, because of their size, ...

Papaya ringspot virus and Cucumber mosaic virus associated with a severe mosaic in melon

Rivera Herrero, Carmen; Ramírez Fonseca, Pilar; Rodríguez Solís, Carlos Mario (1991-09)

Severe mosaic disease was observed in several melon fields in Costa Rica during the period 1987-1991. Two viruses, papaya ringspot virus (PRSV) and cucumber mosaic virus (CMV) were associated in single and mixed infections ...

Participation of plant hormones in determination and progression of somatic embryogenesis

Jiménez García, Víctor; Thomas, Clément (2005-11)

In vitro culture protocols have been developed for many species, mainly using empirical approaches, to induce somatic embryogenesis from various explant types. However, the underlying biochemical mechanisms governing ...

Particle size and roasting on water sorption in conilon coffee during storage

Corrêa, Paulo Cesar; de Oliveira, Gabriel Henrique Horta; Rodrigues de Oliveira, Ana Paula Lelis; Vargas Elías, Guillermo Asdrúbal; Machado Baptestini, Fernanda (2016)

The aim of this work was to evaluate alterations on the water sorption of coffee due to the effect of roast, grind and storage in two temperatures (10 and 30 ºC) during 180 days. Crude grain coffee (Coffea canephora) with ...

Patogenicidad de diferentes aislamientos de Fusarium spp. y su efecto sobre la calidad en piña (Ananas comosus) en poscosecha

Díaz Gutiérrez, María Graciela (2018)

Patogenicidad de Fusarium proliferatum y la utilización de fungicidas en el tratamiento de semillas como control preventivo en la fase inicial de desarrollo del arroz (Oryza sativa)

Campos Sánchez, Verónica (2013)

Perspectiva socio-económica sobre la precocidad en frijol

Janssen, Willem (Universidad de Costa Rica, 1988)

La precocidad es un concepto de fitomejoramiento y producción que presenta muchas dimensiones diferentes. Afecta el riesgo, el manejo de cultivos, la mano de obra, el uso de la tierra y del capital, las posibilidades de ...

Perspectivas para el uso de marcadores moleculares en el mejoramiento del frijol

Beebe, Steve; Pedraza, Fabio (Universidad de Costa Rica, 1989)

Los marcadores moleculares son la herramienta más novedosa para el mejoramiento de cultivos en los últimos años. En el caso de frijol (Phaseolus vulgaris L) ya existen una gama amplia de marcadores de ADN para caracteres ...

Peso estimado en cabras con una cinta comercial de pesaje y perímetro torácico

Chacón Hernández, Pablo Andrés; Boschini Figueroa, Carlos (2017)

El objetivo del presente trabajo fue determinar la viabilidad técnica de utilizar una cinta para medir la circunferencia pectoral y estimar el peso corporal en caprinos. El estudio se llevó a cabo en la Estación Experimental ...

Phenotype of Arabidopsis thaliana semi-dwarfs with deep roots and high growth rates under water-limiting conditions is independent of the GA5 loss-of-function alleles

Barboza Barquero, Luis Orlando; Nagel, Kerstin A.; Jansen, Marcus; Klasen, Jonas R.; Kastenholz, Bernd; Braun, Silvia; Bleise, Birgit; Brehm, Thorsten; Koornneef, Maarten; Fiorani, Fabio (2015-07-10)

BACKGROUND AND AIMS: The occurrence of Arabidopsis thaliana semi-dwarf accessions carrying inactive alleles at the gibberellin (GA) biosynthesis GA5 locus has raised the question whether there are pleiotropic effects on ...