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Publications (61)
Avena fatua is a very important weed in wheat worldwide. This also occurs in the Mexicali Valley,BC., where acetolactate synthase- and acetyl coenzyme A carboxylase-inhibiting herbicides areused to control this grass. In the search for the best alternative for the producer, this researchaimed to estimate the efficiency of these two groups of herbic...
Objective: To evaluate the agronomic performance and nutritional potential of Sesbania grandiflora, Lablab purpureus, and Vigna radiata in two sowing methods. Design/methodology/approach: The morphological and bromatological parameters of leaves and stems of S. grandiflora, L. purpureus, and V. radiata sown flat and in beds were determined. The for...
O Objective: To economically evaluate the use of chemical, organic and organic-mineral fertilizers in of forage oat production in the Mexicali Valley; and to determine the profitability of each fertilization type. Design/methodology/approach: Three treatments were established, one chemically fertilized (T1), one with organic fertilization (T2), and...
Objective: To study the relationship between vegetation indices and the toxicity of the herbicide pinoxaden on two populations of Avena fatua L. Design/methodology/approach: A completely randomized design with a 2x4 factorial arrangement was used in the laboratory, with factor A being the two populations of Avena fatua and factor B being the four c...
El triticale en las regiones áridas y semi áridas de México, se postula como cultivo alterno al maíz y trigo debido a que produce forraje y grano de calidad idónea para la alimentación del ganado, y las nuevas variedades muestran potencial de rendimiento de grano similar al trigo. Por consiguiente, el objetivo de este estudio fue evaluar el rendimi...
El objetivo fue evaluar el efecto de la mezcla de fertilización química y lixiviado de lombriz sobre parámetros de crecimiento en chile habanero (Capsicum chinense L. Jacq) bajo condiciones de malla sombra. El experimento se realizó en el Instituto de Ciencias Agrícolas de la Universidad Autónoma de Baja California mediante un diseño experimental c...
Objective: Mycorrhizal fungi are a group of microorganisms that live insithusants, thus, maintaining perceptible associations with their host plants in certain parts of their life cycle. They can be characterized by their capacity to synthesize secondary metabolites and to promote growth and induce plant-disease resistance, therefore, gaining great...
The populations of mealybug, Ferrisia virgata Cockerell (Hemiptera: Pseudococcidae), have begun to increase in the Mexicali Valley, causing economic losses in cotton cultivation. The use of pesticides is the main method for its control, so natural enemies, including Coccinella septempunctata, have not been used to control this pest. Therefore, it i...
El establecimiento de cultivos de cobertura hace posible aminorar los
daños en los suelos ocasionados por los sistemas de agricultura intensiva
y mantener la productividad de los cultivos de interés. La presente
investigación tiene por objetivo determinar la producción de biomasa
de tres diferentes tipos de cultivos de cobertura en una plataforma d...
Antecedentes: En el año 2021, México obtuvo el trigésimo séptimo lugar en la producción de trigo a nivel mundial con una producción de 3.5 millones de toneladas, el estado de Baja California aportó el 7 %, con una producción promedio de 6 t ha -1 . Caracterizar nuevas variedades de trigo en las diferentes regiones agrícolas de México, es una tarea...
Introducción. Las poblaciones del piojo harinoso Phenacoccus solenopsis se incrementaron en el valle de Mexicali, ocasionando pérdidas económicas en el cultivo de algodón (Secretaría de Agricultura, 2021). Además, se carecen de estudios del comportamiento poblacional de esta plaga en esta región del estado de Baja California. Objetivo. Estudiar la...
Introducción. El maíz es potencialmente importante para Mexicali, Baja California; ocupa una superficie de 2 290.5 ha con rendimiento de 11.47 t/ha, el cual registró un valor de producción de 139 893.55 miles de pesos durante los ciclos otoño-invierno y primavera-verano de 2021 (SIAP, 2021). Sin embargo, este cultivo está sujeto a la presión por ma...
Objective: To evaluate the effect of aminoethoxyvinylglycine (AVG) additions on several growth variables of R. asiaticus in a greenhouse under a typically dry environment of the Mexicali valley. Design/methodology/approach: The variables determined were, bud opening rate, flower diameter, height of stem and bud growing rate and completely randomize...
Introducción. El trigo es uno de los cultivos económicamente importantes para la región de Mexicali, Baja California, ocupando una superficie de 36 536.24 ha, con un rendimiento de 6.14 t/ha (SIAP, 2021). La maleza en dicho cultivo representa un factor crítico en su producción (Alshallash, 2018). Objetivo. Determinar la densidad poblacional e índic...
Este libro presenta la investigación científica en el área de ciencias agrícolas
de parte de investigadores, académicos, profesionales, productores
y estudiantes relacionados con la producción agrícola sustentable
a nivel nacional e internacional. El objetivo de esta obra es permitir
el análisis de conocimientos y experiencias que contribuyan a gen...
The objective of this research was to compare the toxicity of reduced doses and enzymatic activity associated with insecticide tolerance to abamectin and profenofos on Chrysoperla carnea Stephens and its prey Bactericera cockerelli Sulc. Residual toxicity was measured at 0.1, 0.5, and 1.0% of the recommended dose of abamectin and profenofos for con...
En México, el maíz es el cultivo con mayor extensión territorial sembrada
y motor económico por su importancia en el mercado; los maíces
pigmentados toman importancia dentro de este estudio, ya que producen
compuestos fenólicos, metabolitos secundarios y tienen importancia
económica por sus beneficios al ser humano y por la resistencia de los
culti...
Introducción. La avena silvestre es una de las malezas de importancia en el mundo por las pérdidas que ocasiona en cultivos cereales de invierno. El principal método de control es químico, mediante la aplicación de herbicidas postemergentes inhibidores de la Acetolactato Sintasa (ALS) y Acetil Coenzima A Carboxilasa (ACCasa). Objetivo. Evaluar la e...
Objectives: To evaluate the production of juice and sugar, the physicochemical parameters of the juice during extraction and quantify the differences between genotypes. Design/Methodology/Approach: An experiment under irrigation was established with 10 genotypes of sweet sorghum in southern Sonora, México, during the autumn-winter cycle, under a ra...
The present study was conducted to evaluate the impact of bimetallic nanoparticles (NPs) of copper (Cu) and zinc (Zn) from Crotalaria longirostrata on the insect mortality and cell viability of Phenacoccus solenopsis. The biosynthesis of bimetallic nanoparticles (Cu/Zn-NPs) from C. longirostrata was confirmed by the presence of a single peak around...
The use of Lagenaria siceraria rootstocks in watermelon production has favored fruit yield and quality under conditions of environmental stress. However, it is necessary to know if the differential characteristics of fruit and seed L. siceraria are related to watermelon yield and fruit in grafted plant. The objective was to evaluate two dissimilar...
Corn starch is one of the most widely used biopolymers in the world for various applications, due to its high production, renewable, low cost, non-toxic, biodegradable and provide great stereochemical diversity by presenting a complex structure with unique qualities that they depend on multiple factors to obtain special properties for a specific us...
The objective of the study was to evaluate the response of non-preference and severity of damage by Melanaphis sacchari (Zehntner) in commercial cultivars of sorghum (Sorghum bicolor (L.) Moench). Effect of antixenosis and enzymatic activity were evaluated in 11 sorghum cultivars with a completely randomized design with 10 replications in a laborat...
The aim of this study was to evaluate the effect of inoculation with Bacillus spp. isolates on the photosynthetic apparatus of Capsicum chinense plants infected with PepGMV. In vitro and greenhouse experiments were performed to evaluate whether the inoculation improved plants’ performance through the increase in photosynthetic efficiency to control...
El objetivo de esta investigación fue determinar el efecto de antibiosis y el contenido de polifenoles en cultivares comerciales de Sorghum bicolor L. (Moench) sobre Melanaphis sacchari (Zehntner). Se evaluaron 11 cultivares de sorgo: Perla 101, Sinaloense 202, Gavatero 203, Costeño 201, Cow Vittle, Gayland Ward 9320, NK 180, DKS 26, DKS 2805, Gayl...
ABSTRACT. The weed in the cultivation of green onion (Allium fistulosum L.) is a critical factor in its growth and production. Therefore efficient strategies are required for its management in this crop. An experiment was conducted under field conditions to determine the critical period of weed competition in A. fistulosum. The experiment consisted...
p class="SiMPLE">Background. The association of legumes with grasses improves the quality of the diet as well as the protein value, increases productivity, allows savings in nitrogen fertilizer and maintains the proportion of the botanical components of the meadow. The cutting date affects the productive behavior of the forages species in temperate...
The rose varieties (Rosa spp.; Rosaceae), widely used to decorate urban landscapes, are susceptible to attacks by arthropod pests. The twospotted spider mite Tetranychus urticae Koch (Acari: Tetranychidae) is one of the most economically important pests in roses. The study proposed to evaluate the resistance mechanisms (antixenosis, antibiosis, and...
The Mexicali valley is an important region in the production of meat and milk of bovine origin with acceptance in other countries, mainly the United States of America, Japan and Korea. For this reason, quality forage is required to feed cattle such as triticale, used in various areas of Mexico; however, in the Mexicali valley, there is no informati...
El valle de Mexicali es una región importante en la producción de carne y leche de origen bovino con aceptación en otros países principalmente Estados Unidos de América, Japón y Corea. Por tal motivo, se requiere forraje de calidad para la alimentación del ganado como el triticale, utilizado en diversas zonas de México; sin embargo, en el valle de...
Background. The association of legumes with grasses improves the quality of the diet as well as the protein value, increases productivity, allows savings in nitrogen fertilizer and maintains the proportion of the botanical components of the meadow. The cutting date affects the productive behavior of the forages species in temperate, arid and semi-a...
The weed in the cultivation of green onion (Allium fistulosum L.) is a critical factor in its growth and production. Therefore efficient strategies are required for its management in this crop. An experiment was conducted under field conditions to determine the critical period of weed competition in A. fistulosum. The experiment consisted in period...
Objective: To determine the relationship of different photographic indexes and NDVI values with the production of dry biomass of leaves in triticale forages (X Triticosecale wittmack).
Design/methodology/approach: Ten triticale varieties were grown during two agricultural cycles, under different irrigation and fertilization conditions. Data was ana...
Effectiveness of natural enemies greatly depends on their functional responses, one of the key components in the selection of biological control predators. The aim of this study was to describe the functional response of third-instar Chrysoperla carnea Stephens (Neuroptera: Chrysopiade) on fourth-instar Myzus persicae Sulzer (Hemiptera: Aphididae)....
Abstract. Leek, Allium ampeloprasum L., is susceptible to attack by onion thrips,
Thrips tabaci Lindeman, that reduce yield and quality. Intercropping has been
proposed as a strategy for reducing negative effects of pests on one or all crops in a
system. The objective of the study was to assess the effect of intercropping maize,
Zea mays L., and le...
La presencia de hongos fitopatógenos en productos hortofrutícolas altera la calidad postcosecha provocando el deterioro organoléptico y visual del fruto. La lucha química es la acción más empleada en las fases pre cosecha y postcosecha, presentando los inconvenientes de la posible toxicidad y el aumento de la resistencia en los microorganismos. En...
The objective of this investigation was to determine hyperparasitism in M. sacchari in sorghum. Pieces of sorghum leaves infested with parasitized aphids were collected and placed in Petri dishes under laboratory conditions, the total of emerging parasitoid adults was counted every eight days and the insects were identified. Lysiphlebus testaceipes...
The aim was to determine the influence of naphthaleneacetic acid on the quality and yield components
of 'Navigator' and 'Thunderbird' muskmelons. The experiment was carried out in the experimental field of the
Institute of Agricultural Sciences of the Autonomous University of Baja California. Three treatments of naphthaleneacetic acid (0.1, 0.2 and...
The objective was to evaluate the ovicidal and larvicidal activity of aqueous extracts of Pluchea sericea
and Artemisia tridentata leaves on Haemonchus contortus. Concentrations of 100, 75, 50, 25 and 12.5 mg/mL of each extract were assessed. There were signi cant di�erences (p ≤ 0.05) for all the concentrations in the inhibition of egg hatching an...
The profitability of apiculture and the health of bee populations depend on landscapes rich in nectariferous and polleniferous flowers. Therefore it is clear that knowledge on local bee flora constitutes the basic information necessary to determine the apiculture potential of a region. Nevertheless, there is no research to date showing the floral s...
The compounds generated by the metabolism of plants have different properties such as antimicrobial like a repellents which can be used by itself to control biotic factors which are affect the quality. The presence of diseases in agricultural crops is one of the main causes of production losses, because the microorganisms are affecting the organole...
The compounds generated by the metabolism of plants have different properties such as antimicrobial like a repellents which can be used by itself to control biotic factors which are affect the quality. The presence of diseases in agricultural crops is one of the main causes of production losses, because the microorganisms are affecting the organole...
Nota cientíca recibido: 17 de agosto de 2015, aceptado: 09 de diciembre de 2015 RESUMEN. Se comparó la frecuencia de morfotipos africanizados y europeos de abejas melíferas en dos municipios de Baja California. Se estudiaron 47 colonias en Mexicali y 34 en Ensenada, además de 11 enjambres silvestres migratorios capturados en Mexicali y cuatro en En...
The frequency of Africanized and European honey bee morphotypes were compared in two municipalities of Baja California, Mexico. 47 and 34 colonies of Mexicali and Ensenada were studied respectively, including 11 swarms captured in Mexicali and four in Ensenada. Ten bees from each colony and swarm were selected, forewing length and the femur of the...
Tomato crops are among the most important vegetables cultivated worldwide, Mexico being one of the major producing countries. Large quantity of this crop is found in states belonging to the arid northwest of the country; the adaptation of these regions to vegetable production has been significant with the support of agricultural technology due to t...
The integration of chemical and biological control can be part of sustainable pest management; therefore, it is essential to know the lethal and sublethal effects of insecticides on natural enemies to maximize the compatibility between these two tactics. The LC50 values of abamectin, bifenthrin, endosulfan, imidacloprid, and profenofos were determi...
The integration of chemical and biological control can be part of sustainable pest management; therefore, it is essential to know the lethal and sublethal effects of insecticides on natural enemies to maximize the compatibility between these two tactics. The LC50 values of abamectin, bifenthrin, endosulfan, imidacloprid, and profenofos were determi...
The use of repeated insecticide applications in agricultural crops to control Bemisia tabaci (Genn.) has resulted in resistance problems and environmental pollution. Inputs from plant species are an alternative to reduce this problem. Plants are a source of bioactive chemicals that can have insecticidal, repellent, attractant, anti-feeding or growt...
The aim of this study was to evaluate grain yield (RG)
stability of some commercial wheat varieties, and to assess the stability
of other parameters which are not typically measured for grain
release purposes: performance of straw (RP), weight per hectoliter
(PH), white belly (PB), harvest index (IC), grain protein (PG) and
gluten strength (W). The...
This is the first report of the vegetable leafminer Liriomyza sativae tunneling in chickpea leaves (Cicer arietinum), in Sinaloa, Mexico. Leafminer adults emerged from field collected chickpea leaves kept under laboratory conditions, as well as the parasitoids Opius spp. (Hymenoptera: Braconidae), Diglyphus spp., Neochrysocharis spp. and Closteroce...
Chemical and biological control in sustainable management requires understanding the risks, selectivity and conditions of use for insecticides, in order to maximize their compatibility. Therefore, the tolerance of Chrysoperla carnea and Bactericera cockerelli to field concentrations of 18, 180, 1200, 1300 and 1400 ppm L1 of the insecticides abamec...
Bactericera cockerelli (Sulc) (Homoptera: Psyllidae) is an important pest of solanaceous in Mexico, for its control the use of pesticides is the main method. Reason why the use of natural enemies under an integrated management system, has been little used, as in the case of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), reported biologica...
Chemical and biological control in sustainable management requires understanding the risks, selectivity and conditions of use for insecticides, in order to maximize their compatibility. Therefore, the tolerance of Chrysoperla carnea and Bactericera cockerelli to field concentrations of 18, 180, 1200, 1300 and 1400ppm L-1 of the insecticides abamect...
Bactericera cockerelli (Sulc) (Homoptera: Psyllidae) is an important pest of solanaceous in Mexico, for its control the use of pesticides is the main method. Reason why the use of natural enemies under an integrated management system, has been little used, as in the case of Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae), reported biologica...
The degree of resistance of a Tetranychus urticae population, from production greenhouse roses, was determined for five miticides from different toxicological groups in comparison to a laboratory line. The presence of enzymes related to that resistance was also evaluated. Several bioassays were conducted on the laboratory line to establish the slop...
El control de Tetranychus urticae se hace principalmente con acaricidas, por lo que esta especie ha desarrollado resistencia a la mayoría de los productos que se utilizan para su combate. Esta habilidad de T. urticae a desarrollar resistencia ha causado problemas en especies de plantas en invernadero o en condiciones de campo. En este estudio se de...
