Listar Agronomía por autor "c4446754-8301-48fe-af11-dcd552a20795"
Mostrando ítems 21-40 de 65
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Evolution of endogenous hormone concentration in embryogenic cultures of carrot during early expression of somatic embryogenesis
Jiménez García, Víctor; Guevara Berger, Eric; Herrera Quirós, Jorge; Bangerth, Fritz K. (2004-09)Embryogenic callus and suspension cultures of carrot (Daucus carota L., cv. Nantaise), growing on/in medium including 1 mg/l 2,4-dichlorophenoxy acetic acid (2,4-D), were transferred to medium with or without this plant ... -
Explant Type, Culture System, 6-Benzyladenine, Meta-Topolin and Encapsulation Affect Indirect Somatic Embryogenesis and Regeneration in Carica papaya L.
Solórzano Cascante, Paúl; Sánchez Chiang, Neiva; Jiménez García, Víctor (2018-12)A protocol to propagate papaya hybrid plants through indirect somatic embryogenesis was developed considering the effect of explant type, culture system, particular cytokinins and encapsulation, in different stages of the ... -
Factores que influyen en la embriogénesis somática in vitro de palmas (Arecaceae)
Viñas Meneses, María; Jiménez García, Víctor (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 ... -
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 ... -
Floración in vitro - revisión de literatura
Jiménez García, Víctor; Montero Carmona, Wayner (2009-01)La floración in vitro puede ser inducida en diferentes estadios durante el desarrollo de las plantas in vitro mediante variaciones en los factores físicos y químicos relacionados con el cultivo de tejidos. Dentro de los ... -
Hibridación somática de Carica papaya var. Pococí y Vasconcellea sp. (Brassicales: Caricaceae) mediante electrofusión de protoplastos
Carvajal Campos, Paula (2020-11-17)La papaya (Carica papaya) es un cultivo de importancia económica y alimenticia. Por su relevancia, ha existido interés en mejorar genéticamente esta especie usando el género Vasconcellea como recurso génico. Algunas especies ... -
Hormonal status of maize initial explants and of the embryogenic and non-embryogenic callus cultures derived from them as related to morphogenesis in vitro
Jiménez García, Víctor; Bangerth, Fritz K. (2001)Endogenous hormone levels (indole-3-acetic acid [IAA], abscisic acid [ABA], gibberellins 1, 3 and 20 [GAs], zeatin/zeatin riboside [Z/ZR] and N6[Δ2-isopentenyl] adenine/N6[Δ2-isopentenyl] adenosine; [iP/iPA]) were analysed ... -
Identificación y selección de híbridos somáticos obtenidos mediantefusión de protoplastos
Montero Carmona, Wayner; Jiménez García, Víctor (2009)El poder seleccionar eficientemente las plantas híbridas producidas a partir de fusión de protoplastos es fundamental. Se han logrado muchos avances en el tema en las últimas décadas. Entre los métodos utilizados para la ... -
Improved high-efficiency protocol for somatic embryogenesis in Peach Palm (Bactris gasipaes Kunth) using RITA® temporary immersion system
Heringer, Angelo Schuabb; Steinmacher, Douglas A.; Fraga, Hugo Pacheco de Freitas; Vieira, Leila do Nascimento; Montagna, Tiago; Quinga, Liliana Alexandra Pila; Quoirin, Marguerite Germaine Ghislaine; Jiménez García, Víctor; Guerra, Miguel Pedro (2014-11)Bactris gasipaes Kunth (Arecaceae) is an Amazonian palm cultivated mainly for the production of fruits and heart of palm. Biotechnological tools based on somatic embryogenesis (SE) can be used for improvement and germplasm ... -
In vitro culture and endogenous hormone levels in immature zygotic embryos, endosperm and callus cultures of normal and high-lysine barley genotypes
Jiménez García, Víctor; Bangerth, Fritz K. (2001)Endogenous hormone levels viz. indole-3-acetic acid (IAA), abscisic acid, gibberellins 1, 3 and 20 (GAs), zcatin/zeatin riboside and N6(Δ2-isopentenyl) adenine/ N6(Δ2-i sopentenyl) adenosine were determined in immature ... -
In vitro propagation of bamboo species through axillary shoot proliferation: a review
Sandhu, Manpreet; Wani, Shabir H.; Jiménez García, Víctor (2017)Bamboos, very relevant plants in many countries around the world, are propagated at large scale with extreme difficulties. Use of seeds is challenging because of plant’s sporadic flowering and long flowering cycles, together ... -
In vitro propagation of purple pitahaya (Hylocereus costaricensis [F.A.C. Weber] Britton & Rose) cv. Cebra
Viñas Meneses, María; Fernández Brenes, Mainor A.; Azofeifa Delgado, Álvaro A.; Jiménez García, Víctor (2012-10)Limitations to large-scale propagation of purple pitahaya (Hylocereus costaricensis [F.A.C. Weber] Britton & Rose), a potential source of betalains for the food industry, can be overcome through utilization of in vitro ... -
In vitro propagation of the neotropical giant bamboo, Guadua angustifolia Kunth, through axillary shoot proliferation
Jiménez García, Víctor; Magsig Castillo, Jhamna; Tavares, Elena; Guevara Berger, Eric; Montiel Longhi, Mayra (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 ... -
Involvement of Plant Hormones and Plant Growth Regulators on in vitro Somatic Embryogenesis
Jiménez García, Víctor (2005-11)In spite of the importance attained by somatic embryogenesis and of the many studies that have been conducted on this developmental process, there are still many aspects that are not fully understood. Among those features, ... -
Mejoramiento genético en tacaco
Monge Pérez, José Eladio; Zerpa Catanho, Dessireé Patricia; Hernández Pridybailo, Andrés; Jiménez García, Víctor; Durán Umaña, Lolita (2016)Se visitaron varias zonas del país, con el fin de buscar genotipos de tacaco (Sechium tacaco) con características superiores, tales como ausencia de fibra en la pulpa, buen sabor, tamaño grande, y textura de pulpa ... -
Mejoramiento genético en tacaco (Sechium tacaco)
Monge Pérez, José Eladio; Zerpa Catanho, Dessireé Patricia; Viñas Meneses, María; Jiménez García, Víctor; Arguedas García, Cristina (2016-04-08)El objetivo fue identificar y reproducir material genético promisorio de alta calidad en el cultivo de tacaco, que es la única especie de planta comestible endémica exclusivamente de Costa Rica. Se realizó una colecta de ... -
Mejoramiento genético en tacaco - II etapa
Monge Pérez, José Eladio; Oreamuno Fonseca, Patricia; Durán Umaña, Lolita; Hernández Pridybailo, Andrés; Jiménez García, Víctor; Murillo Quesada, Marcelo Efrén (2020-02-28)OBJETIVO GENERALAPORTAR AL MEJORAMIENTO GENÉTICO DEL TACACO, A TRAVÉS DE DIVERSAS TÉCNICAS Y ACTIVIDADES, CON ELFIN DE OBTENER PLANTAS QUE PRODUZCAN FRUTOS DE EXCELENTE CALIDAD PARA SU CONSUMO. Anotaciones del objetivo ... -
Micropropagación de Guadua angustifolia Kunth a partir de explantes nodales
Jiménez García, Víctor; Magsig Castillo, Jhamna; Tavares, Elena; Guevara Berger, Eric; Montiel Longhi, Mayra (2004)Se evaluó el efecto de diferentes estrategias de desinfección, así como de varias concentraciones de la citoquinina 6-bencilamino purina (BAP) en el medio de cultivo, sobre el establecimiento y desarrollo in vitro de ... -
Mode of action of plant hormones and plant growth regulators during induction of somatic embryogenesis: molecular aspects
Jiménez García, Víctor; Thomas, Clément (2005-11)Plant hormones play critical roles in the establishment of somatic embryogenesis. During this process, somatic plant cells reverse their state of differentiation, acquire pluripotentiality and set up a new developmental ... -
Nutritional and industrial relevance of particular Neotropical pseudo-cereals
Acuña Gutiérrez, Catalina; Campos Boza, Stefanny; Hernández Pridybailo, Andrés; Jiménez García, Víctor (2019-01-01)Several pseudo-cereals (plants not belonging to the Poaceae family but with uses similar to those of the traditional cereals) of Neotropical origin have been cultivated and consumed since pre-Columbian times by indigenous ...