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El consumidor potencial de durazno (Prunus persica) orgánico en Zacatecas, Aguascalientes y San Luis Potosí
Padilla-Bernal, Luz E.;Pérez-Veyna, Oscar;
Agrociencia , 2008,
Abstract: the world market of organic food is undergoing accelerated growth, and méxico exports most of its production to this market. there are factors that can lower mexico's probabilities of increasing its presence in international markets, and developing the incipient domestic market could be an alternative to reduce dependence on the external market. peach (prunus persica) growers in zacatecas are in the process of converting conventional production to organic, and are willing to sell their produce on the domestic market if they can earn a price premium. this study examines variables that have an influence in local and regional consumers' motivation and willingness to pay a price premium for organic peach. interviews were conducted: 459 in zacatecas, 428 in aguascalientes, and 399 in san luis potosí. the sample size was determined by a simple random method considering the employed population that earned more than five times the minimum wage in the fourth quarter of 2003. the data were processed with a multiple bounded probit model, using maximum likelihood techniques. it was found that the premium consumers are willing to pay is minimum or nil, considering a statistical significance of the estimators of up to 10%.
Rentabilidad del chile seco en Zacatecas, México  [cached]
Elivier Reyes Rivas,u00C1ngel G. Bravo Lozano,Homero Salinas Gonzu00E1lez,Luz E. Padilla Bernal
Revista fitotecnia mexicana , 2006,
Abstract: Este trabajo presenta un estudio sobre la rentabilidad del sistema de producción de chile seco (Capsicum annuum L.) en el altiplano zacatecano (México), en función del nivel tecnológico usado, costos de producción, rendimientos y precios, y del tipo de productor (peque o, mediano y grande). Los sistemas de producción se clasificaron en cuatro rangos, de tama o del predio, bajo el supuesto de que utilizan diferentes niveles de tecnología y obtienen diferentes rendimientos y rentabilidades. También se hizo un análisis comparativo de esas tecnologías de producción, con respecto a la tecnología recomendada por el Instituto Nacional de Investigaciones Forestales y Agropecuarias (INIFAP) en el campo Experimental Zacatecas. Los resultados muestran que conforme aumentó el tama o del predio y la aplicación de tecnología, el rendimiento por hectárea fue mayor y se alcanzaban mejores niveles de rentabilidad. Así, el sistema de producción del estrato 1 (<10 ha) fue la menos rentable (71.4 %), y el sistema de tecnología potencial del INIFAP el más rentable (172 %).
El servicio de asistencia técnica a los productores de chile seco en Zacatecas  [cached]
Guillermo Galindo González
Convergencia , 2007,
Abstract: Esta investigación se realizó en el segundo semestre de 2001 en el Altiplano de Zacatecas, para caracterizar a los extensionistas que ofrecen asistencia técnica a los productores chileros. Para lograr lo anterior, se dise ó y aplicó un cuestionario integrado por 42 preguntas. En los resultados destacó lo siguiente: es baja la relación de los extensionistas con el entorno institucional; sus principales necesidades de información se refieren al control de plagas y enfermedades, así como a la comercialización; y se presentan limitantes para que éstos realicen eficientemente su trabajo.
"CEZAC 06": nueva variedad de ajo tipo Jaspeado para la región norte centro de México "CEZAC 06": new Jaspeado garlic cultivar for the northem-central region of Mexico  [cached]
Manuel Reveles-Hernández,Rodolfo Velásquez-Valle,María Dolores Alvarado Nava,Salvador Rubio-Díaz
Revista mexicana de ciencias agrícolas , 2011,
Abstract: Alrededor de 5 200 hectáreas de ajo son cultivadas en México donde la región norte centro, es una de las principales áreas productoras de esta hortaliza. La falta de variedades de ajo localmente adaptadas es una seria desventaja para los productores de ajo. En este reporte se mencionan las principales características agronómicas de "CEZAC 06", una nueva variedad de ajo disponible para los productores de los estados de Zacatecas, Aguascalientes, Durango, Chihuahua y Coahuila. Las principales ventajas de esta variedad son rendimientos más altos, bulbos consistentemente redondos, menor número de dientes por bulbo y maduración homogénea. En parcelas comerciales el rendimiento se ha mejorado en 9-17% y se han alcanzado rendimientos de hasta 30 t ha-1 con el uso de "CEZAC 06". About 5 200 hectares of garlic are cultivated in Mexico; the north-central region is one of the main producing areas of this vegetable. The lack of locally adapted varieties of garlic is a serious disadvantage for garlic producers. In this paper are mentioned the main agronomic characteristics of "CEZAC 06", a new garlic variety available for producers of Zacatecas, Aguascalientes, Durango, Chihuahua and Coahuila. The main advantages of this variety are higher yield, consistently round bulbs, fewer numbers of cloves per bulb and homogeneous maturation. In commercial plots, yield has improved in 9-17% and there have been achieved yields of up to 30 t ha-1 using "CEZAC 06".
Spectral signature of ultraviolet solar irradiance in Zacatecas
Pinedo V, J. L;Mireles, F;Ríos M, C;Quirino T, L. L;Dávila R, J. I;
Geofísica internacional , 2006,
Abstract: this study presents an analysis of the global ultraviolet spectral irradiance (290-400 nm) registered in zacatecas, a city near the tropic of cancer, located at 2500 m above sea level, latitude of 22° n and longitude of 102°w. the spectra have been measured using a bentham radiometer with a 0.5 nm step in wavelength. the measurements show relatively high levels of ultraviolet irradiance (uv), which may be characteristic of areas close to the tropic of cancer. faced with an increase of the incidence of skin cancer among the population of zacatecas, these measurements highlight that a damage prevention plan is required.
Spectral signature of ultraviolet solar irradiance in Zacatecas  [PDF]
J. L. Pinedo V.,F. Mireles G,C. Ríos M.,L. L. Quirino T.
Geofísica internacional , 2006,
Abstract: This study presents an analysis of the global ultraviolet spectral irradiance (290-400 nm) registered in Zacatecas, a city near the Tropic of Cancer, located at 2500 m above sea level, latitude of 22° N and longitude of 102°W. The spectra have been measured using a Bentham radiometer with a 0.5 nm step in wavelength. The measurements show relatively high levels of ultraviolet irradiance (UV), which may be characteristic of areas close to the Tropic of Cancer. Faced with an increase of the incidence of skin cancer among the population of Zacatecas, these measurements highlight that a damage prevention plan is required.
Internet for the rural development in Aguascalientes, Mexico
Reyes-Muro, Luis;Sangerman-Jarquín, Dora Ma.;Cuevas Sánchez, Jesús Axayacatl;Ortiz-Trejo, Ceferino;
Agricultura técnica en México , 2009,
Abstract: the incipient use of internet in rural areas and there was the assumption that the low educational level, older producers, the lack of infrastructure and computer hardware, affect the interest of producers to know and use the medium of communication. diagnosis was performed to identify factors that determine the use of these electronic media in rural areas of the state of aguascalientes. in april 2008; 81 producers were interviewed by sampling method in "bola de nieve". sociodemographic characteristics were identified: gender, age, education, occupation and aspects of computer use, email and internet. negative correlation was found between the age of producers and computer use (r2= -0.43920) and high positive correlation with educational level (r2= 0.74248), and the need for training in the internet use (r2= 0.89646). notwithstanding the alleged cultural barriers and lack of infrastructure and computer equipment in rural areas, it was possible in three workshops to train 37 farmers in the management of a computer, email and internet. under the light of the results, contrary to the assumption that the internet has no rural penetration, it was found in the area of study, that there is interest in using electronic means of communication as well as the availability of infrastructure (10 000 digital community centers nationwide) so there is a great opportunity for internet use in the transfer of information on web pages, email, video conferencing, distance learning, discussion forums, among other tools and applications like a cost-effective to enhance persona l communication, group and institutional development and strengthening rural families.
Relaciones estratigráfico-estructurales en la intersección del sistema de fallas San Luis-Tepehuanes y el graben de Aguascalientes, México central
Loza-Aguirre, Isidro;Nieto-Samaniego, Angel F.;Alaniz-álvarez, Susana A.;Iriondo, Alexander;
Revista mexicana de ciencias geológicas , 2008,
Abstract: the zacatecas-san josé de gracia area, located at southern zacatecas and northern aguascalientes in the borderline between the sierra madre occidental and the mesa central, is particularly important because it is located at the intersection of two regional fault systems: the san luis-tepehuanesfault system and the aguascalientes graben. we mapped the area and measured the faults that affect the cenozoic units in order to know the interaction between these two fault systems during the cenozoic. eight new cenozoic litostratigraphic units were identified, four of which were dated, defining twofelsic volcanic pulses: the first one occurred during middle eocene, with the la bufa ryolite at the base (48.91 ± 0.09 ma) and la virgen formation at the top (36.8 ma; ponce y clark, 1988: economic geology, 83, 1668-1682), the second pulse during the oligocene, comprising rocks with isotopic ages of' 28.0 ± 0.8 ma (garabato ignimbrite) and 27.0 ± 0.7 ma (sierra fría rhyolite), with a magmatic gap between -36 and 29 ma. two deformation events were recognized: the first one (dl) occurred in the paleoceneearly eocene producing wnw and nne normal faults. the second event (d2), of late oligocene-early miocene age, comprised two deformational phases (d2a andd2b) that reactivated preexisting structures and formed new ones. the first phase (d2a) activated nne normal faults and the second phase (d 2b) formed wnw normal faults. an horizontal stretching direction of n60 °e could have generated simultaneous (dl) and alternating (d2) activity in both fault systems, which can be explained if we consider that the observed fault directions are inherited from older basement structures. an apparent left-lateral displacement of the aguascalientes graben is observed at its intersection with the san luis-tepehuanes fault system, but new data herein presented indicate that this apparent structural configuration is inherited from older structures.
New distribution records of compositae from Aguascalientes, Mexico  [cached]
Gerardo García Regalado
Acta botánica mexicana , 1999,
Abstract: Como resultado del estudio florístico de la familia Compositae en el estado de Aguascalientes, México, se dan a conocer 64 géneros y 103 especies como nuevos registros para la entidad. Muchos de ellos fueron colectados en localidades de difícil acceso. Se incluyen datos de distribución para cada taxon.
Trichinellosis en perros callejeros de la ciudad de Zacatecas México TRICHINELLOSIS IN DOGS FROM IN ZACATECAS, MéXICO  [cached]
VICENTE BERUMEN DE LA TORRE,JOSé J. MU?OZ ESCOBEDO,MARíA A. MORENO GARCíA
Parasitología latinoamericana , 2002,
Abstract: In this study 51 tongues from dogs used for practices at the Universidad Autónoma the Zacatecas were inspected for the presence of Trichinella spiralis, through the muscle compression and artificial digestionmethods. The presence of the parasite was found in 3 tongue indicating that trichinellosis is an important public health ploblem in Zacatecas and therefore special attention to pig inspection and proper disposal of infected meat should then be given at slaughterhouses in order to prevent the transmission of this important zoonosis.
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