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Ultraestructura del bambú Guadua angustifolia var. bicolor (Poaceae: Bambusoideae), presente en Costa Rica
(2006-08-20)
Sections of leaf lamina, leaf sheath and branches of adult Guadua paniculata collected in Costa Rica,
were studied ultrastructurally. Diagnostic ultrastructural characteristics include the cellular pattern of the adaxial ...
Effect of macronutrients and sucrose concentration on in vitro growth of Drosera capensis L. (Droseraceae) plants, and evaluation of six substrates for acclimatization
(2011-01)
The effect of two concentrations of the Murashige and Skoog macronutrients (full and half strength), in combination with three concentrations of sucrose (1.5, 3.0 and 4.5% w/v), was evaluated on the in vitro growth of ...
Challenges for Food and Nutrition Security in the Americas: Costa Rica and its commitment to sustainability
(2017-11)
As a small nation with high biodiversity and an extensive system of protected areas, Costa Rica will face particular challenges regarding food security over the next few years. Thus, whatever development model the country ...
Changes in hormone concentrations during dormancy release of oil palm (Elaeis guineensis) seeds
(2008-10)
Oil palm (Elaeis guineensis) seeds are highly dormant immediately after harvest. In practical horticulture this dormancy has been traditionally overcome by a dry-heat treatment and, more recently, through the application ...
Regeneración in vitro mediante embriogénesis somática de variedades de cítricos. I. Obtención de callo friable y suspensiones celulares de naranja dulce (Citrus sinensis) y naranja agria (Citrus aurantium) cultivadas en Costa Rica
(1995-03-31)
In vitro plant regeneration of citrus through somatic embryogenesis. I. Establishment of friable calli and suspension cultures of local cultivars of sweet orange (Citrus sinensis) and sour orange (Citrus aurantium). Friable ...
In vitro propagation of the neotropical giant bamboo, Guadua angustifolia Kunth, through axillary shoot proliferation
(2006)
Guadua angustifolia Kunth was successfully propagated in vitro from axillary buds. Culture initiation, bud sprouting, shoot and plant multiplication, rooting and acclimatization, were evaluated. Best results were obtained ...
Ultraestructura del bambú Guadua paniculata (Poaceae: Bambusoideae) de Costa Rica
(2006-12)
Sections of leaf lamina, leaf sheath and branches of adult Guadua paniculata collected in Costa Rica,
were studied ultrastructurally. Diagnostic ultrastructural characteristics include the cellular pattern of the adaxial ...
Propagación in vitro de Phalaenopsis (Orchidaceae) mediante el cultivo de secciones de ejes florales después de la senescencia de las flores
Propagation of Phalaenopsis (Orchidaceae) through in vitro culture of nodal sections from senescent flower stalks
(1996-01-01)
Segmentos nodales provenientes de inflorescencias senescentes de híbridos de Phalaenopsis fueron desinfectados dos veces y colocados en un medio sólido MS modificado bajo en calcio y con varios aditivos orgánicos (vitaminas, ...
Ultraestructura del bambú Guadua macclurei (Poaceae: Bambusoideae) de Costa Rica
(2006-08-20)
Se evaluaron ultraestructuralmente secciones de la lámina de la hoja, vaina de la hoja y rama, de una planta adulta de Guadua macclurei. Las brácteas del culmo carecen de setas orales. En la superficie adaxial de la lámina ...
Endogenous hormone levels in habituated nucellar Citrus callus during the initial stages of regeneration
(2001-01)
Embryogenic nucellar callus cultures of different Citrus species and cultivars growing in hormone-free medium were transferred to medium containing either sucrose or glycerol as the only carbohydrate source. Glycerol has ...