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June 1996 - present
Publications
Publications (326)
Las sustancias promotoras de crecimiento mejoran mecanismos fisiológicos en las plantas. El objetivo de este estudio fue evaluar el efecto del FitoMas-E® en el contenido de clorofilas y la tasa fotosintética de plantas de albahaca cultivadas en un sistema hidropónico en condiciones salinas. Para esto se estudiaron tres variedades de albahaca (Napol...
Dear Colleagues,
Horticultural crops are an important source of income with
high nutritional, medicinal, and industrial significance.
However, the increasing demand for horticultural crops
could be affected by inconveniences such as biotic and
abiotic stresses. Currently, most farmers use agrochemicals
as a standard method of managing those problem...
In arid zones, salinity stress is one of the most predominant abiotic stresses which causes significant loses in agricultural production. The objective of this study was to evaluate the physiological and morphometric characteristics of Chenopodium ambrosioides L. to determine its tolerance to NaCl-stress. The experiment used a completely randomized...
Genetic analysis of plants relies on high yields of pure DNA. For Rhipsalis baccifera this represents a great challenge since its plant tissue can accumulate large amounts of mucilage, polysaccharides, polyphenols and secondary metabolites, which co-purify with amplifiable DNA. These contaminating compounds lead to a poor yield and prevent access t...
El estudio evaluó cómo el diámetro de los cuernos uterinos y la actividad cíclica de vaquillas para carne influye en su comportamiento estral y tasas de gestación con inseminación artificial a tiempo fijo (IATF). Se usaron 100 vaquillas Bos taurus (cruzas no definidas de Angus, Charolais y Gelbvieh) de 300 ± 32 kg, evaluadas en su condición corpora...
Halophyte grasses constitute an alternative for animal feeding in semi-desert and arid ecosystems. Thus, the objective of the present study is to evaluate Distichlis spicata wild populations in mineral productivity, morphometry, nutritional value, and recycling in two coastal ecosystems in Baja California Sur, Mexico. The data associated with the s...
Distichlis spicata is a gramineous halophyte species that grow around the coastal areas. The objective of the study was to identify the modifications in the anatomical structure of stomates of the D. spicata leaf epidermis, cultivated with irrigation and without irrigation conditions. Two populations were selected, 1) plants of D. spicata with irri...
The present study aimed to evaluate caporal hybrid tomatoes' antioxidant capacity and fruit quality under greenhouse conditions when applying a combination of a marine bacteria (Stenotrophomonas rhizophila) and dif ferent doses of vermicompost. A random block design was used, with 12 treatments: Inorganic fertilized (IF, control treatment), S. rhiz...
The present study aimed to evaluate caporal hybrid tomatoes’ antioxidant capacity and fruit quality under greenhouse conditions when applying a combination of a marine bacteria (Stenotrophomonas rhizophila) and dif ferent doses of vermicompost. A random block design was used, with 12 treatments: Inorganic fertilized (IF, control treatment), S. rhiz...
Silicon (Si) has multiple benefits in crops. Most of the studies on Si have been carried out by applying some type of stress. It has even been suggested that the positive response of Si is determined by the degree of stress in the plant, and there is little information on Si and its effect on the plant when there is no induced stress factor. The ob...
Objetive. Determine and compare the biochemical and mineral composition of plant species consumed by grazing goats in three seasons of the year (drought, rain, and transition). Materials and methods. Sampling of the plant species that consume goats in each season of the year were made, during the time the goats feed on the rangeland, following them...
Las sustancias húmicas son una alternativa para reducir el exceso de fertilizantes. El objetivo fue evaluar la conductividad eléctrica (CE) de la solución nutritiva (SN) y ácidos húmicos (AH), en el rendimiento y calidad de frutos Capsicum annuum L. El diseño fue completamente al azar con arreglo bifactorial con 12 tratamientos y 15 repeticiones. E...
The salinity and drought are abiotic stresses that affect the agriculture which foster growth retardation, physiological abnormalities, and lower production output of field crops throughout the world. Plant responses under salinity conditions is a scientific problem to be explored. The objective of this study was to determine the effect of vermicom...
Minerals are needed in the diet of animals for maintenance,
development, and reproduction. The aim was to determine mineral content of
shrubs consumed by goats in an arid area from three production systems, during
wet and dry seasons. The leaves, pods, stems, or flowers of 34 shrubs and one
supplement were sampled manually and analyzed Ca, Mg, K, N...
Biostimulants improve the absorption and assimilation of nutrients by plants, making them more tolerant to biotic or abiotic stress, improving their agronomic characteristics. Natural and biodegradable biostimulants such as chitosan have fungal and bactericidal activities and promote growth and crop yield, this is why, to evaluate the effect of chi...
Legumes are used as fodder and green manures, because of fix nitrogen biologically. The objective of this study was to determine the emergence capacity and the early growth of four legume species treated with different NaCl-stress concentrations. The experiment was established in a completely randomized design with a factorial arrangement, where th...
The establishment of Pachycereus pringlei seedlings is a scarce event; soil conditions are one of the factors attributed to its high mortality rate in the early stages of development. The use of organic manures as a substrate helps to improve the structure, porosity, and density of the soil where they live, in addition to providing nutrients that w...
The objective is to determine the seasonal-diet effect (dry, rainy) on goats’ milk fatty acid profile reared on a farm with an intensive production system located in an arid zone of Mexico. In the rainy season, a group of 10 goats, Creole × Anglo-Nubian, consumed a diet composed exclusively of alfalfa hay (Medicago sativa). Meanwhile, in the dry se...
El mildiu velloso (Peronospora belbahrii) afecta el desarrollo de la albahaca (Ocimum basilicum) y su control es complicado, debido al uso restringido de fungicidas. El objetivo de este estudio fue someter semillas de albahaca variedad Nufar a tratamientos de termoacondicionamiento de 40, 50 y 60°C expuestas a diferentes intervalos de tiempo (30, 6...
El tomate es el producto hortícola más cultivado en el mundo, su consumo tiene benef icios a la salud humana por el contenido de antioxidantes. Para satisfacer la demanda mundial de consumo se utilizan sistemas de producción de agricultura protegida con fuentes de fertilización de síntesis química. Debido al costo monetario y ambiental elevado, se...
Basil (Ocimum basilicum L.) is a medicinal and aromatic plant of commercial interest; it can be grown in salinized soils by applying a stress mitigator. The objective was to evaluate the biochemical response of two basil varieties inoculated with AMF Rhizophagus fasciculatus and appraise its usefulness as a NaCl-stress mitigator. A completely rando...
Los bioestimulantes contienen sustancias que regulan el metabolismo secundario de las plantas. Además de estimular el crecimiento y el desarrollo vegetal, activan funciones fisiológicas y bioquímicas que ayudan a mitigar el estrés salino en las plantas.
Salicornia bigelovii (Torr.) es una planta con un promisorio potencial agroindustrial y la homeopatía es una alternativa natural que no afecta la inocuidad del organismo tratado. El objetivo del estudio fue evaluar el efecto del medicamento homeopático Natrum muriaticum (NaM) sobre variables de respuesta productiva de S. bigelovii con diferentes ni...
Los compuestos bioactivos altamente diluidos se han utilizado con éxito en el sector agrícola para estimular el crecimiento y desarrollo de las plantas, incluso en condiciones de cultivo desfavorables. Por esta razón, se estudió la viabilidad de utilizar Natrum muriaticum (NaM), una ultradilución homeopática, como agente elicitor contra los efectos...
Suaeda edulis (L.) Flores Olv. & Noguez es una planta halófita con la capacidad de desarrollarse en ambientes hostiles y presentar polimorfismo, es decir, la capacidad de producir semillas con diferentes características. El objetivo de este estudio fue evaluar la expresión del polimorfismo y la latencia en las semillas de S. edulis, colectadas en c...
Los bioestimulantes contienen sustancias que mantienen el metabolismo secundario de las plantas cuando están disponibles. Además de estimular el crecimiento y el desarrollo vegetal, activan funciones fisiológicas en las plantas, porque contienen moléculas propias del metabolismo vegetal. El objetivo de este estudio fue evaluar el efecto mitigador d...
Despite the ability of microbial antagonists to control postharvest spoilage, the looking for the consistently high level of disease control using microbial antagonist after a single treatment is continuing. Furthermore, individual application of either physical methods like UVC illumination and thermotherapy or the biological or nonchemical method...
p> Background . One of the classic land degradation problems that man has had to face is controlling, preventing, or improving soils affected by salinity. Objective . The objective of this study was to evaluate the physiological and morphometric response of Origanum vulgare L. plants subjected to five concentrations of NaCl (0, 50, 100, 150 and 200...
Drought is one of the major factors limiting global crop yield. In Mexico, agriculture is expected to be severely affected by drought. The Capsicum genus has several crop species of agricultural importance. In this work, we analysed the Capsicum chinense plant physiological responses and differentially expressed genes under water stress mainly focu...
The indiscriminate use of synthetic fungicides has led to negative impact to human health
and to the environment. Thus, we investigated the effects of postharvest biocontrol treatment with Debaryomyces hansenii, Stenotrophomonas rhizophila, and a polysaccharide ulvan on fruit rot disease, storability, and antioxidant enzyme activity in muskmelon (C...
Background. Salicornia bigelovii (Torr) is a halophyte plant, whose cultivation could be optimized by applying eco-friendly homeopathic treatments, generating new applicable knowledge to reduce saline stress in this and other plant species. Objective. Evaluate physiological response in S. bigelovii plants irrigated with different proportions
of sea...
This study determined the effect of vermicompost humates as salinity mitigator in germination and morphometric characteristics of basil varieties seedlings, tolerant and sensitive to salinity, subjected to vermicompost humates diluted 1/60 (v/v) and 0, 50 and 100 mM NaCl in a completely randomized design with four replications. The rate and percent...
Existe evidencia científica en favor de la aplicación de medicamentos homeopáticos como alternativa beneficiosa para mitigar efectos negativos del estrés abiótico en cultivos agrícolas. El objetivo de esta investigación fue evaluar el efecto de Natrum muriaticum (NaM) en acelga (Beta vulgaris L. var. Fordhook Giant), cultivada bajo estrés salino in...
Suaeda edulis (Flores Olvera & Noguez) is a halophile species that grows in saline environments, with concomitant difficulties to germinate and reproduce. Once a null germination under a salinity gradient or fresh water was observed, a plant-growth bioregulator (BioR) was applied to interrupt dormancy and improve germination in vitro. This BioR is...
p> Background. Salicornia bigelovii (Torr) is a halophyte plant, whose cultivation could be optimized by applying eco-friendly homeopathic treatments, generating new applicable knowledge to reduce saline stress in this and other plant species. Objective. Evaluate physiological response in S. bigelovii plants irrigated with different proportions of...
Selenium (Se) is an essential micronutrient for humans, but in plants, this
essentiality has not been demonstrated. However, the supplementation of Se in
crops has been shown to improve the yield and the quality of the edible part.
The objective of this research was to evaluate the effect of Se foliar fertilization
on yield, nutraceutical quality a...
Halophytes are capable of growing in saline environments. However, this attribute results from a wide genetic variability, making it difficult to approximate halophytes’ agroecological management. We examined the hydro-climatological attributes associated with the distribution of species of the genus Suaeda in NW Mexico and SW USA, and for S. eduli...
Los extractos acuosos de sustancias húmicas constituyen una de las alternativas dentro del grupo de productos utilizados en agricultura sostenible. Se obtienen fundamentalmente de fuentes orgánicas reciclables, como el compost y la vermicomposta. Los objetivos de este estudio fueron 1) definir la tolerancia a la salinidad de dos variedades de albah...
Environmental disruption is particularly determinant for cacti development since they have slow growth and long life cycles. Soil and water salinity are two of the main environmental factors that are considered primordial for the propagation, seedling growth, establishment, and development of coastal cacti. The objective of this study was to evalua...
The excessive exploitation of the natural resources puts at
risk the food sovereignty around the world. Therefore, the
seeking for food production systems that use more efficiently
the natural resources is ongoing. An alternative is aquaponics,
because nutrients and water are utilized more efficiently than
in individual fish and plant production sy...
La producción de orégano es de relevancia económica en el noroeste de México. Sin embargo, los productores para obtener altos rendimientos recurren a la fertilización química, pero su mal uso, agudiza la salinidad. Lippia palmeri crece de manera natural en suelos áridos, pobres en materia orgánica, alta salinidad y temperatura en el noroeste de Méx...
The objective of this study was to compare the morphology of M. spicata and R. officinalis plants, and the relative abundance quantification, colony-forming units, ribotypes, and biofilm former bacteria under an inorganic fertilizer and the use of vermicompost leachate in the rhizosphere under a closed hydroponic system. In mint (Mentha spicata) pl...
p class="Default"> Background . The electrical conductivity (EC) of a nutrient solution (NS) in hydroponic or soilless systems influences the yield and quality of the fruits. Objective . The aim of this research was to determine the quality and fruit yield of bell pepper in response to the electrical conductivity of the nutrient solution. Methodolo...
Arbuscular mycorrhizal fungi (AMFs) play an important role in soil improvement, leading to the enhanced growth and yield of the host plants. The diversity, abundance, and richness of AMFs were evaluated in eight coffee plantations (Coffea arabica L.) with different erosion degrees. The results indicated that 26 AMFs morphotypes scattered across fou...
Fermented prickly pear (Opuntia megacantha) has been used as forage in goats and sheep. Thus, the objectives of this study were to assess bimonthly production of cladodes var. Narro, compare the quality of those fermented versus non-fermented, and assess the effect of fermented cladodes in milk production of Holstein cows in stables (La Partida, Ma...
Attenuators of salt-stress favor the use of effluents, being a low-cost organic product. The present study aimed to evaluate the effect of vermicompost leachate (VL) added to shrimp-culture effluent on seeds and seedlings of Salicornia bigelovii (Torr.) under salt-stress, evaluating germination, water relations variables, and biomass. Seeds were ir...
Las comunidades microbianas tienen efectos sobre el crecimiento y productividad de los cultivos. Sin embargo, se pueden ver afectadas por diversas prácticas agrícolas. El objetivo de la investigación fue determinar la diversidad de hongos micorrízicos
arbusculares (HMA) asociados al cultivo de calabaza italiana establecido en campo bajo acolchado p...
Para juzgar el impacto y la relevancia de los resultados del quehacer científ ico, las y los investigadores son sometidos a procesos de evaluación en los que se involucran registros de publicaciones y las citas correspondientes. Para ello, algunos índices se han desarrollado. Entre ellos, los índices propuestos por Hirsch se consideran en la mayorí...
ABSTRACT. The local knowledge of the wild species that goats consume in
the areas surrounding the natural reserves contributes to the establishment of options
for livestock production systems associated to the semiarid zones, with a focus
on the preservation of the species, the economy of the farmers and the safeguarding
of the environment. The obj...
En el futuro inmediato y a mediano plazo las actividades de Investigación Científica y Tecnológica, Formación de Recursos Humanos, Vinculación y Apropiación Social del Conocimiento padecerán los embates de las nuevas restricciones que ha impuesto la nueva realidad de la Pandemia por COVID-19. Las sociedades, economías, Instituciones de Investigació...
The use of agrochemicals in sweet pepper (Capsicum annuum L.) cultivation has led to the search for fertilization alternatives, such as Bacillus subtilis and vermicompost, which are options to produce food without affecting the environment and human and animal health. Thus, the objective of this study was to evaluate the effect of incorporating Bac...
La población mundial genera un alto consumo de alimentos, situación que provoca el incremento del uso de fertilizantes sintéticos, los cuales, son costosos y contaminan al medio ambiente. Las bacterias rizosféricas son una alternativa a la aplicación de
fertilizantes sintéticos, debido a que estimulan el crecimiento y la productividad de las planta...
Human populations generate high food consumption, so this situation causes an increase in the application of synthetic fertilizers that are expensive and contaminate the environment. Rhizosphere bacteria are an alternative to synthetic fertilizer application because they stimulate plant growth and productivity, do not contaminate the environment, a...
Aquaponics is an alternative method of food production that confers advantages of biological and economic resource preservations. Nonetheless, one of the main difficulties related to aquaponics systems could be the outbreak and dissemination of pathogens. Conventional treatments need to be administrated carefully because they could be harmful to hu...
The aim of this study is to assess the role of L-cysteine desulfhydrase (L-DES) and endogenous hydrogen sulfide (H2S) in glutathione (GSH)-induced tolerance to salinity stress (SS) in sweet pepper (Capsicum annuum L.). Two weeks after germination, before initiating SS, half of the pepper seedlings were retained for 12 h in a liquid solution contain...
La goma de mezquite (Prosopis laevigata [Humb. & Bonpl. ex Willd.]) es similar a la goma arábiga; su producción se asocia al estrés del árbol. Objetivo. Evaluar el efecto del ácido 2-cloroetil-fosfónico para inducir producción y mejorar la calidad de la goma. Metodología. Se utilizó un diseño completamente al azar con arreglo factorial; el factor u...
Saline soil and saline groundwater reduce agricultural productivity on drylands. We are developing a new aquaponics system to improve food productivity on such lands while effectively utilizing saline groundwater. In this study, cultivation of Swiss chard (Beta vulgaris L. spp. cicla cv. Seiyou Shirokuki) was carried out using fish wastewater with...
Salicornia bigelovii Torr. is a potential new crop for coastal and saline lands, because of the oil content of its seeds, its properties as fresh vegetable, forage, and other uses. As a true halophyte, it can grow with seawater irrigation. The aim of this study was to determine the phenology and water requirements of Salicornia as a new plant resou...
Salinity stress is one of the main problems limiting growth and development of cultivated species. The objective of this study was to assess NaCl-stress basil plants (Ocimum basilicum L.) cv. 'Nufar' and to determine whether the mitigating effect of an arbuscular mycorrhizal fungus strain (AMF). A completely randomized factorial design was used con...
Anthracnose, caused by Colletotrichum gloeosporioides, is one of the most important diseases in papaya fruit. Its control has been achieved with synthetic fungicides, but the application of marine bacteria and the sulphated polysaccharide ulvan (structural description: β[1,4]-D-GlcA-α[1,4]-L-Rha 3 sulfate, β[1,4]-L-IdoA-α[1,4]-L-Rha 3 sulfate, β[1,...
The problems associated with the salinization of soils and water bodies and the increasing competition for scarce freshwater resources are increasing. Current attempts to adapt to these conditions through sustainable agriculture involves searching for new highly salt-tolerant crops, and wild species that have potential as saline crops are particula...
The high-water (85%) and low protein (5%) content of cactus cladodes (Opuntia spp.) reduce the amount of dry-matter consumed by ruminants. The objective of this study was to use protein enrichment technology to increase Opuntia protein content and to feed Dorper lambs, comparing the Opuntia protein enrichment and the basal diet in the liveweight ga...
El uso indiscriminado de fertilizantes ha contribuido a la salinidad del suelo tanto como al agotamiento de recursos minerales del mismo ocasionando así dependencia a los fertilizantes sintéticos por parte de los productores agrícolas. El objetivo del presente trabajo fue determinar el contenido inorgánico de N, P, K en las formas asimilables para...
El libro incluye información básica y técnica del proceso de lombricompostaje. Desde la biología de la lombriz roja californiana y los aspectos técnicos a considerar para producir composta. Así como experiencias de trabajo obtenidas en el Unidad de Guerrero Negro del Centro de Investigaciones Biológicas del Noroeste (CONACYT) La Paz BCS. México
Suaeda maritima (L.), regarded as a promising halophyte, is widely distributed along the coastal plains of Abbas, Iran. Suaeda maritima has been highly incorporated with the traditional agriculture to support the Iranian agricultural economy. However, its productivity is limited by a lack of available nitrogen. Application of halotolerant plant gro...
Growth of Rosmarinus officinalis L. and acumulation of secondary metabolites under high salinity Crecimiento de Rosmarinus officinalis L. y acumulación de metabolitos secundarios en alta salinidad La salinidad impacta el desarrollo de los cultivos e induce cambios en el metabolismo secundario de plantas aromáticas y medicinales. El romero Rosmarinu...
Salinity stress limited the production in over 30% of irrigated crops and 7% of dryland agriculture worldwide. The objective was to evaluate the effects of NaCl-stress on the enzymatic activity in tomato. Two experiments were carried out in germination and early vegetative growth stages. The activity of proline and peroxidase of eight varieties (Mi...
Growth biostimulants activate physiological functions in plants, contain substances of plant metabolism, which improve the use of nutrients and are an option to mitigate stress by NaCly. The objective was to evaluate the effect of a bio-stimulant derived from sugar cane (FitoMas-E®), as an attenuator of NaCl-stress in basil varieties, grown under h...
The aim of this research is to evaluate the effect of foliar application of salicylic acid (SA) on the yield and phytochemical content in hydroponically grown cucumber (Cucumis sativus L.). (1) Background: The importance of Mexico’s cucumber production is based on its cultivation in recent decades as one of the major winter crops; in addition, the...
