Obdulia Baltazar Bernal

• Colegio de Postgraduados

Specklinia digitale is an epiphytic orchid endemic to Mexico. The destruction of its habitat has resulted in it being regarded as an endangered species, and, to our knowledge, no effort has been made to establish ex situ conservation programs. Here, we describe an in situ assessment of flower and fruit phenology and subsequent in vitro germination....

Orchids are highly prized in the flower market; their extravagant colors and shapes make them an ideal target for rural tourism. Mexico has a diverse range of native orchids; this diversity can be exploited as a tourist resource since there are many enthusiasts who want to learn about them. However, information about orchid tourists’ demographics a...

Knowledge of urban orchids and their phorophytes is essential for conservation and education initiatives in these areas. The objective of this study was to assess the diversity of epiphytic orchids and identify their phorophytes at Postgraduate College Campus Córdoba (CPCC) and Paso Coyol Ecological Park (PEPC) in order to better understand the dif...

Objective: To raise awareness about the ecological importance of orchids and to promote the species commercialized by a company focused on their production through the design of a trail. Design/Methodology/Approach: A diagnosis of the plot was carried out to identify its characteristics and points of interest. A trail was designed to connect the mo...

The use of new technologies for micropropagation such as temporary immersion systems (TISs) is important, because it reduces costs by 40% lowering labor, agar and containers. TISs are containers designed for large-scale, semiautomatic production of plants in a liquid medium, which has been used in propagation of commercial orchids. This tool has hi...

Temporary immersion systems (TIS) have been used for orchid micropropagation. The main advantage of TIS use for micropropagation is that the explant is periodically immersed in nutrient media, and then, the nutrient solution is drained, which allows the explant tissue to stay in air. The current review resumes the application of TIS in orchid propa...

Objective: to design an interpretive trail of native orchids in the gardens of Campus Cordoba, Colegio de Postgraduados.Design/Methodology/Approach: this study is descriptive and field based. First, the feasibility of the trail wasvalidated through an online survey. Afterwards, several field trips were conducted; the script was created, andfinally...

The knowledge on Orchidaceae family fruits becomes useful in new studies, by helping to identify species that are not in flowering period and providing material for in vitro germination of orchid seeds. The hypothesis was that the number of orchid specimens with naturally pollinated fruits, from the central zone of the state of Veracruz, Mexico, wo...

In vitro conservation and regeneration of potato germplasm is important in breeding programs. The objective of this study was to assess the combined effect of paclobutrazol (PAC) and silver nanoparticles (AgNPs) during reduced-growth conservation and their in vitro ability to regenerate S. tuberosum after conservation treatments. For the conservati...

Las heliconias son ornamentales tropicales, el 98% se distribuye en el centro y sur de América y el Caribe, se desarrollan en temperaturas entre 18 y 34 °C.

Encyclia cordigera is a Mexican native orchid, of major ornamental importance due to its beautiful and fragrant flowers. The said characteristics also create a risk for the extinction of the species, thus, the urgent necessity to stablish propagation strategies to prevent its loss. The objective of this study was to establish a protocol for asymbio...

Lycaste aromatica (Graham) Lindl. orchid is known for its outstanding cinnamon aroma, which has caused its illegal and accelerated extraction from its natural habitat. For this reason, procedures were developed for asymbiotic seed germination and seedling development in a gravity immersion bioreactor (GIB) system. Four culture media were tested for...

En la micropropagación vegetal la aclimatación es una etapa crucial para promover que en las plantas ocurran cambios morfológicos y fisiológicos para su adaptación ex vitro. El objetivo del presente estudio fue evaluar la supervivencia y desarrollo de plántulas de Lycaste aromatica (Graham) Lindl. obtenidas en dos sistemas de micropropagación (medi...

Soil salinity is a problem that affects soil fertility and threatens agri-food crop production worldwide. Biotechnology, through plant micropropagation and the use of biofertilizers such as arbuscular mycorrhizal fungi (AMF), is an alternative to increase productivity and induce tolerance to salinity stress in different crops. This study aimed to e...

Agave tobala (Agave potatorum Zucc.) is one of the most important wild species to produce a Mexican alcoholic beverage called mezcal. Unfortunately, natural propagation is not sufficient to fulfill the demands. The objective of this study was to develop a protocol for the commercial micropropagation of A. potatorum using a temporary immersion syste...

The orchid Lycaste aromatica (Graham) Lindl. is known for its outstanding cinnamon aroma, which has caused its illegal extraction from its natural habitat. For this reason, procedures were developed for the asymbiotic seeds germination and seedlings development in a gravity immersion bioreactor (GIB) system. Four culture media were tested for in vi...

Objective: To determine the best phorophyte species for the adaptation of the Laelia anceps Lindl orchid. (Orchidaceae) in an anthropized landscape. Design/methodology/approach: A completely randomized experimental design with four treatments (phorophytes) was used: Swietenia macrophylla King., Fraxinus sp., Persea schiedeana Nees. and Tecoma stans...

Tropical flowers have a growing market due to their exotic appearance and thus postharvest techniques are necessary to prolong their shelf life. The objective of this study was to evaluate the effectiveness of wax and salicylic acid (1 mM) in reducing chilling injury and increase the vase life in stems of Heliconia wagneriana stored at low temperat...

Heliconia ‘Tropics’ has high market acceptance and blooms year-round. Still, there is little information on solutions to prolong its vase life. The objective of this research was to assess pulse solutions to prolong the vase life of Heliconia ‘Tropics’ in three cutting stages. Floral stems in a closed, semi-open and commercial grown stages from thr...

La actividad turística en el municipio de Zongolica, Veracruz, México, se centra en el aprovechamiento de sus sitios naturales, y es considerado un destino de turismo de aventura.

Objective: To evaluate the process of sunflower production (Helianthus annuus L.) for fresh cutting flowers, considering two sowing dates, growing degree-days, and commercialization. Design/Methodology/Approach: A completely randomized experimental design with subsampling was used, with five repetitions per treatment (sowing date), in order to anal...

Objetive: Evaluate different techniques to prolong the postharvest life of Heliconia psittacorum x H. spathocircinata cv. Tropics. Design/methodology/approach: Two experiments were carried out; in the first it was evaluated the effect of five pulse solutions [(T1 = control (water); T2 = Hydraflor® 100 (0.5 g L-1); T3 = Hydraflor® 100 (0.5 g L-1) +...

La Heliconia L.f psittacorum × H. spathocircinata es una planta de uso ornamental muy demandada a nivel nacional e internacional. Uno de los factores más importantes en el crecimiento vegetativo de plantas de heliconia es el aporte de macronutrientes, los cuales influyen de manera importante en el rendimiento y calidad de flores. Se estableció el c...

The decline of wild orchid populations derives from the clandestine looting and fragmentation of their natural habitat. In vitro orchid seedling propagation can represent a solution to this problem. This study aimed to establish an in vitro propagation system in Myrmecophila grandiflora, from germination in a semi-solid medium to development in a l...

La floricultura de la zona centro del estado de Veracruz, México es un buen complemento del turismo rural al emprender estrategias de agregación de valor. En el Colegio de Postgraduados se realizó una investigación tendiente a conocer las especies de flores y a brindar alternativas a los floricultores, mismas que se divulgan mediante un curso que e...

La investigación tuvo como objetivo conocer el proceso de producción de teléfono (Epipremnum aureum), evaluar dosis de fertilización y la aplicación de ácido giberélico como estimulador del crecimiento. Además, hacer diseños ornamentales para dar un valor agregado a esta especie ornamental. Los esquejes de la planta fueron colectados en las zonas d...

La floricultura de la zona centro del estado de Veracruz, México es un buen complemento del turismo rural al emprender estrategias de agregación de valor. En el Colegio de Postgraduados se realizó una investigación tendiente a conocer las especies de flores y a brindar alternativas a los floricultores, mismas que se divulgan mediante un curso que e...

p>El objetivo de este trabajo fue la evaluación del porcentaje de viabilidad en semillas de Trema micranthum los cuales se dividieron en: pruebas de imbibición y test de tetrazolio para la identificación de las semillas viables germinables y viables no germinables, así como la evaluación de dos promotores de germinación para inhibir la latencia pre...

La comunidad rural de Tepexilotla, perteneciente al municipio de Chocamán, Veracruz, México, está enclavada en un área de Bosque Mesófilo de Montaña (BMM) y con el fin de aprovechar la alta biodiversidad de este ecosistema, mediante la explotación de un sendero interpretativo que promueva la educación, la conservación de la biodiversidad del BMM y...

Rural tourism is a trend before the crisis of mass tourism, sun and beach standardized that does not have an agreed definition, because the rural world has varied meanings. First of all, an etymological analysis of the term "rural tourism" is made, an expanded definition for the Mexican context as "rancher tourism" is proposed and exhibited a multi...

El turismo rural es una moda ante la crisis del turismo masivo, estandarizado de sol y playa que no tiene una definición consensuada mundialmente porque lo rural tiene variadas significaciones. Primero, se hace un análisis etimológico del término “turismo rural”, se propone una definición ampliada para el contexto mexicano como “turismo ranchero” y...

La floricultura tropical en México es incipiente, pero tiene gran potencial comercial en diversas áreas del trópico húmedo del país. Las maracas (Zingiber spp.) son excelente opción para productores que desean diversificar o innovar sus sistemas de producción. En este trabajo se describen brevemente las principales variedades de maracas, recomendac...

Low survival and regrowth vigor are recurring problems in the bareroot perennial industry and can result from a combination of factors in the supply chain. The main commercial complaints in the bareroot perennial industry center on moldy and/or dehydrated bareroots, both conditions that can cause reductions in regrowth vigor and survival. Over two...

Producción Comercial de Heliconias es una obra dirigida a productores, estudiantes universitarios y técnicos e investigadores que deseen conocer o iniciarse en la producción comercial de heliconias. En sus páginas, el lector encontrará un paquete tecnológico y una guía concisa sobre los conceptos y las técnicas agronómicas para la producción de hel...

The objective of this research was to investigate factors affecting the survival and regrowth vigor after storage of bareroot perennials. The first experiment was to determine the optimal storage temperature for bareroot regrowth and survival. The treatments were done by collaborators in Holland, where the plants were harvested in November 2004, wa...