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Search Results: 1 - 10 of 43528 matches for " Jorge Alberto Acosta Gallegos "
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"Resistencia de frijol al tizón de halo en el valle de méxico y progreso de la enfermedad"
Rosa Navarrete Maya,Jorge Alberto Acosta Gallegos
Revista fitotecnia mexicana , 2000,
Rendimiento de tres tipos de cruzas entre genotipos silvestres y cultivados de frijol (Phaseolus vulgaris L.)
Herrera Flores, Teresa Susana;Acosta Gallegos, Jorge Alberto;
Agricultura técnica en México , 2008,
Abstract: the objective of the research was to during 2000 an experiment was established at campo experimental valle de mexico, instituto nacional de investigaciones forestales, agricolas y pecuarias (inifap) in which three of each type of cross made between a cultivated and three wild genotypes were evaluated: simple cross, backcross one and simple crosses with double recombination. the cultivated parent was the cultivar negro tacaná and the wild populations were from different geographical origin, hidalgo, puebla and jalisco. the trial was established on june 12, 1998 and conducted under rainfall plus suplemental irrigation. a complete random desing with three replicates was utilized and the experimental plot consisted of three rows 5 m in length separated 0.8 m. in all segreganting populations there were late flowereing and maturing plants, but with a larger frequency in those populations derived from simple crosses with double recombination. plants derived from backcrousses, as it was expected, displayed similar phenological and morphological traits as the recurrent parent, negro tacaná. significant differences were observed among populations for seed yield in g m2; those populations derived from backcrosses showed a seed yield similar to the recurrent parent, negro tacaná. among the simple crosses, the one derived from negro tacaná x wild hidalgo displayed a seed yield similar to the one of the cultivated parent (259 g m2). in all populations the were individual plants that showed superior yield than those of negro tacaná, i. e. transgressive segregants. in regard to seed size, few individual plants showed a larger size than negro tacaná, the cultivated parent. in all crosses a negative transgressive segregation was observed for seed size, in other words there were plants with smaller seed size than the wild parent. from the results it seems that the best type of cross for the utilization of wild germplasm in breeding the common bean is the backcross.
Estudio comparativo de características de calidad entre genotipos de frijol de grano negro
Guzmán Tovar, Israel;Almanza Aguilera, Enrique;Acosta Gallegos, Jorge Alberto;Guzmán Maldonado, Salvador Horacio;
Agricultura técnica en México , 2009,
Abstract: the imported black seeded bean type is known in mexico as negro michigan, even after being grown in mexico. the seed traits responsible for the high demand of imported negro michigan that has competitive advantages in the national market are unknown; however. a survey was conducted among merchants and consumers in order to define which traits make the difference between the local black beans and the imported negro michigan. on the other hand, some physical properties, such as seed appearance, cleanliness, seed shape and size, seed color, seed coat content and thickness were recorded on commercial black seeded samples, bred lines and cultivars, as well as imported negro michigan and t3 9 produced in mexico. also data were taken on water sorption capacity, soluble solids and broth thickness. cook bean flavor was important for 41% of consumers. therefore, the physical appearance of the local bean grain must be improved to be able to compete with the imported black bean, and sensorial studies among consumers should be conducted when a new cultivar is going to be registered for commercial production. among the bred lines tested, some displayed similar quality traits as negro michigan and could be registered and increased for commercial production since they are suitable for the national market due to its high quality and proven productivity.
Relación entre índice de área foliar y rendimiento en frijol bajo condiciones de secano
Acosta Díaz, Efraín;Acosta Gallegos, Jorge Alberto;Amador Ramírez, Mario Domingo;Padilla Ramírez, José Saúl;
Agricultura técnica en México , 2008,
Abstract: the leaves of the bean plant are one of the organs more affected by intermittent drought stress. the objective of this research was to determine the relationship between the leaf area index and seed yield at four phenological stages in dry bean cultivars of different grain type grown under rainfed conditions. the study was conducted in the main three producing areas in the state of zacatecas, mexico, during the summer of 2002 at six locations: four in the northwestern area, sown with a cv. negro san luis type; one in the central region, with a cv. of the flor de junio type and one in the southeastern region, with a cv. of the flor de mayo type. in each location, eight fields were chosen and in each two rows of 5 m longitude with four replications. four leaf area index samplings were made at four phenological stages: at the beginning of flowering, beginning of pod formation, beginning seed filling, and intermediate seed filling. seed yield was determined at physiological maturity. the relationship between the leaf area index at different stages and seed yield was determined by simple correlations. in general, average leaf area index increased with the development of the phenological stages, the highest values were observed at the beginning of the seed filling stage. average seed yield varied among locations: 130 g m-2 at the northwestern region with cv. negro san luis type, 139 g m-2 at central with cv. flor de junio type and 95 g m-2 at southwestern with cv. flor de mayo type.
Dinámica de los tizones común y de halo del frijol en el Valle de México
Prudencio-Sains, José Manuel;Navarrete-Maya, Rosa;Navarrete-Maya, Jorge;Acosta-Gallegos, Jorge Alberto;
Agricultura técnica en México , 2008,
Abstract: the objectives of this research were 1) to study the dynamics of the diseases bean common and halo blight during the crop cycle at the valley of mexico, under rainfed conditions and 2) to identify resistant cultivars to both bacterial diseases. eleven bean cultivars, from different origin and contrasting growth habit, were sown on june 10, 2001 at texcoco, state of mexico. incidence and disease severity were recorded at different growth stages and the incidence rate and area under disease progress curve (audpc) were also estimated. all cultivars showed incidence of both diseases, that of halo blight was higher than 50% from the end of flowering onwards, and common blight reached the same level until the beginning of seed filling. there was not relationship between disease susceptibility and cultivar growth habit. seed yield was negatively affected by the development of both diseases and halo blight had a larger negative impact. the audpc described with major precision the effect of the diseases on the bean crop, in comparison with punctual readings of incidence and severity. tolerant cultivars against both diseases were bayo madero, negro 8025 and pinto villa.
Patotipos de Colletotrichum lindemuthianum y su implicación en la generación de cultivares resistentes de frijol
Rodríguez-Guerra, Raúl;Acosta-Gallegos, Jorge Alberto;González-Chavira, Mario Martín;Simpson, June;
Agricultura técnica en México , 2006,
Abstract: colletotrichum lindemuthianum, the causal agent of bean anthracnose causes substantial losses in the production of this legume around the world. the main strategy for the control of this pathogen is the use of resistant cultivars. the great variety of pathotypes shown by c. lindemuthianum hampers the wider utilization of resistant cultivars developed for specific regions and resistant to specific local c. lindemuthianum pathotypes already characterized. therefore, the success of breeding programs requires the identification of the pathotypes that are present in the regions for which resistant cultivars will be developed and to use sources of resistance genes against the prevalent pathotypes. the objectives of this essay are: i) make known the frequency and distribution of the c. lindemuthianum pathotypes identified in mexico to date, ii) point out possible sources of resistance within the set of differential cultivars used for pathotype identification of the fungus, which could be used in breeding programs in common bean, iii) postulate the resistance genes carried by bean cultivars previously characterized on the basis of their reaction to pathotypes of the fungus. this information offers researchers and bean breeders the opportunity to select sources of resistance to the pathogen and the possibility of accumulating resistance genes in improved cultivars of commercial value for different regions of mexico. an example could be the incorporation of the resistance genes from the differentials kaboon (co-12) and tu (co-5) into improved cultivars or the combination of genes from elite cultivars such as negro inifap (postulated to carry the genes co-12 or co13) and negro 8025 (postulated to carry the genes co-6 or co-8) in the generation of black seeded cultivars resistant to the majority of c. linde muthianum pathotypes found in the country.
Aluyori, nueva variedad de frijol blanco (alubia) para Sinaloa y el Bajío, México
Salinas Pérez, Rafael Atanasio;Acosta Gallegos, Jorge Alberto;Rodríguez Cota, Franklin Gerardo;Padilla Valenzuela, Isidoro;
Revista mexicana de ciencias agrícolas , 2010,
Abstract: a new white seeded dry bean cultivar is described, 'aluyori'. this is the first white kidney type cultivar developed and released in mexico. aluyori is a type i growth habit intermediate cycle cultivar, large seeded, suited for the national and international market, its seed weight is above 50 g per 100 seeds. aluyori is adapted to irrigation conditions in states of sinaloa and sonora, as well as el bajío in central mexico where has shown high yield potential of 3 t ha-1 and disease resistance, mostly rust elicited by the fungus. under irrigation at sinaloa, aluyori proved to be superior than leading cultivars in the yellow market class, azufrado higuera by 18% and azufrado regional 87 by 22%, equivalent to 363 kg ha-1 in relationship to the former and 430 kg ha-1 to the second. the culinary characteristics of aluyori are similar to those in the leading yellow class cv. azufrado higuera.
Pinto Coloso, nueva variedad de frijol para el estado de Durango
Rosales Serna, Rigoberto;Acosta Gallegos, Jorge Alberto;Ibarra Pérez, Francisco Javier;Cuéllar Robles, Evenor Idilio;
Revista mexicana de ciencias agrícolas , 2010,
Abstract: in durango, farmers demand pinto bean cultivars with slow darkening grains and larger seed size compared to pinto saltillo, which is currently the most popular variety. the aim was to generate commercially superior varieties showing slow darkening coat, earlier maturity and larger seed size in comparison to pinto saltillo. pinto coloso (pt08036) was generated at durango inifap's experiment station, applying pedigree method in a simpe cross made between pinto mestizo and pinto saltillo [(pinto mestizo/pinto saltillo)-69-2-2]. this cultivar showed an average yield of 1 715 kg ha-1 and fluctuations between 923 kg ha-1 to 2,645 kg ha-1. pinto coloso reported, in comparation to pinto saltillo, greater earliness to flowering (40 vs 45 days), maturity (81 vs 88 days) and larger seed size (39 vs 30). pinto coloso also showed indeterminate growth habit, short non-climbing vines, canopy height range between 34 and 38 cm and 75 cm for vine longitude. pinto coloso registered an average of 48 g for 100 seeds weight ranging from 30 to 48 g. grains showed elliptical shape in transversal view and elliptical-rhombohedric lateral shape, cream colored coat, brown spots and yellow-orange hilum. pinto coloso showed tolerance to natural incidence of diseases such as anthracnose and rust, as well as medium to high susceptibility to bacterial blight and root rot. this variety is being validated in farmer's fields to establish adaptability and potential to increase grain quality in pinto bean cultivars produced in mexico.
Rendimiento y reacción a enfermedades en frijol tipo Flor de Mayo en riego y temporal Seed yield and disease reaction in Flor de Mayo bean type grown under irrigation and rainfed conditions
Jorge Alberto Acosta Gallegos,Bertha María Sánchez Garcia,Francisco Manuel Mendoza Hernández,Yaneth Jiménez Hernández
Revista mexicana de ciencias agrícolas , 2010,
Abstract: El frijol tipo Flor de Mayo es de alta demanda entre los consumidores del centro de México, su producción se realiza en las regiones de la Mesa Central, El Bajío y Semiárida. El objetivo fue determinar el rendimiento, peso de la semilla y reacción a enfermedades de un grupo de 14 líneas y dos testigos a través de 14 ambientes, 10 de temporal y cuatro de riego. Los ensayos se condujeron durante los ciclos primavera-verano 2008 y oto o-invierno 2008-2009. Se realizaron análisis de conjunto y por ensayos de temporal y de riego en forma independiente. Diferentes enfermedades atacaron al cultivo a través de los sitios de prueba; bajo temporal, las de mayor distribución fueron la bacteriosis común (Xanthomonas campestris pv phaseoli) y la mancha angular (Phaeoisariopsis griseola); mientras que la antracnosis (Colletotrichum lindemuthianum) y el mildiú velloso (Phythohpthora phaseoli) mostraron un fuerte ataque en Calera, Zacatecas y Celaya, Guanajuato, respectivamente. El ambiente de mayor rendimiento promedio fue Celaya bajo riego (4.15 t ha-1) y el menor se obtuvo en Texcoco bajo temporal (0.90 t ha-1). El análisis conjunto detecto diferencias significativas (p<0.0001) en rendimiento para ambiente, variedad e interacción, pero la mayor contribución a la variación observada correspondió al ambiente (91%) y la menor al genotipo (1%). En el análisis de ensayos bajo temporal el efecto del ambiente fue menor (72%) y se incremento el de la interacción (25%) y en menor grado el del genotipo (3%). De los 14 ensayos, sólo en seis se observaron líneas significativamente superiores (p<0.05) al mejor testigo, Flor de Mayo Anita. La línea FMB 08030 mostró el mayor rendimiento promedio (2.06 t ha-1). En todos los ambientes hubo líneas de mayor peso de 100 semillas (p<0.05) que los testigos. Para rendimiento, el efecto de localidad fue el de mayor influencia en los resultados y en temporal la interacción localidad x genotipo resultó importante. The 'Flor de Mayo' bean type is highly demanded by consumers in Central Mexico, its production takes place at the semiarid, El Bajio and the central plateau regions. The aim was to test a set of 14 bred lines plus two checks across 10 rainfed locations and four irrigated sites on the basis of seed yield, 100-seeds weight and disease reaction. Trials were conducted in the spring-summer season 2008 and fall-winter season 2008-2009. Data analyses were conducted including all test sites, and independently rainfed and irrigated sites. Different diseases attacked the crop across test sites; those widely distributed were common bacterial b
Pinto Coloso, nueva variedad de frijol para el estado de Durango Pinto Coloso, a new dry bean variety for the State of Durango
Rigoberto Rosales Serna,Jorge Alberto Acosta Gallegos,Francisco Javier Ibarra Pérez,Evenor Idilio Cuéllar Robles
Revista mexicana de ciencias agrícolas , 2010,
Abstract: En Durango los productores agrícolas demandan variedades de frijol pinto con grano tolerante al oscurecimiento acelerado de la testa y tama o mayor en relación con Pinto Saltillo, la cual es la variedad más popular actualmente. El objetivo fue generar variedades superiores a Pinto Saltillo en calidad comercial, tolerancia similar al oscurecimiento de la testa y mayor tama o de grano. En el INIFAP-Durango se generó la variedad Pinto Coloso (PT08036), con el método genealógico, a partir de la cruza entre Pinto Mestizo y Pinto Saltillo [(Pinto Mestizo/Pinto Saltillo)-69-2-2]. Esta variedad mostró rendimiento promedio de 1 715 kg ha-1 y fluctuaciones entre 923 kg ha-1 hasta 2 645 kg ha-1. En promedio Pinto Coloso, comparado con Pinto Saltillo, presentó mayor precocidad a floración (40 vs 45 días), madurez (81 vs 88 días) y tama o del grano (39 vs 30). El crecimiento de Pinto Coloso es de enredadera indeterminada, con guías cortas no trepadoras, la altura del dosel oscila entre 34 y 38 cm y la guía crece 75 cm. Pinto Coloso tiene granos de 48 g por 100 semillas y un intervalo de peso entre 30 y 48 g por cada 100 semillas. El grano es transversalmente elíptico, de forma externa elíptica-romboidal, color crema de la testa, pintas de color café y el hilio es amarillo-naranja. Pinto Coloso mostró tolerancia a la antracnosis y roya; así como valores medios y altos de susceptibilidad a tizón común y pudriciones de raíz. Esta variedad está en proceso de validación en terrenos de productores para establecer su adaptabilidad y potencial para incrementar la calidad del frijol pinto producido en México. In Durango, farmers demand pinto bean cultivars with slow darkening grains and larger seed size compared to Pinto Saltillo, which is currently the most popular variety. The aim was to generate commercially superior varieties showing slow darkening coat, earlier maturity and larger seed size in comparison to Pinto Saltillo. Pinto Coloso (PT08036) was generated at Durango INIFAP's Experiment Station, applying pedigree method in a simpe cross made between Pinto Mestizo and Pinto Saltillo [(Pinto Mestizo/Pinto Saltillo)-69-2-2]. This cultivar showed an average yield of 1 715 kg ha-1 and fluctuations between 923 kg ha-1 to 2,645 kg ha-1. Pinto Coloso reported, in comparation to Pinto Saltillo, greater earliness to flowering (40 vs 45 days), maturity (81 vs 88 days) and larger seed size (39 vs 30). Pinto Coloso also showed indeterminate growth habit, short non-climbing vines, canopy height range between 34 and 38 cm and 75 cm for vine longitude. Pinto Coloso registered an ave
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