AGROProductividad

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AGROProductividad

Agro Productividad

Agro Productividad es una publicación mensual del Colegio de Postgraduados en Ciencias Agrícolas. Fue fundada en 2008 con el objetivo de difundir resultados en artículos científicos originales, así como notas científicas, revisiones temáticas, relacionados con la agricultura (cultivos, silvicultura, ganadería, pesca y acuicultura, y agroindustria) y la producción de agroalimentos.

También aborda temáticas sobre procesos económicos, sociales y ambientales que impactan la productividad agrícola y el desarrollo rural.

Todas las contribuciones recibidas son sometidas a un proceso de arbitraje doble ciego y edición final. La revista se publica en español y en inglés. Se encuentra indexada a diferentes indicadores nacionales e internacionales resaltando CONACYT (Competencia Internacional), EBSCO, CENGAGE LEARNING, INC., Google Académico además de Zoological Records en Master Journal List de Clarivate Analitycs (antes ISI), PERIODICA-Biblat, CABI y CAB Abstracts, Latindex (Directorio y Catálogo), REDIB, SIBDI, MIAR, DIMENSIONS, CORE, Scilit, AgEconSEARCH , WordCat , BASE, EBSCOhost (Fuente académica Plus) AURA, y recientemente Electronic Journals Library (EZB), Refseek, OpenAire, ZEITSCHRIFT DATENBANK.

  • Long term orientation: A comparative study amongst engineer and tourism students
    por Katia A. Figueroa-Rodríguez el mayo 12, 2022 a las 12:00 am

    Objective: To investigate differences amongst the LTO (Long Term Orientation) profile of graduate students of two academic programs: tourism and engineer. Design/methodology/approach: A total of 66 students participated in the study. The items of each construct corresponded to the two dimensions established by the original LTO scale. The validity test for the measurement scale was based first on exploratory and then on confirmatory factor analysis. The internal reliability consistency of the multi-item scales was assessed with Cronbach’s alpha. Independent sample t-tests were applied to verify the hypothesis. Results: The eight-item LTO scale performed reasonably well, lending support for its internal validity for the sample. The engineering students (6.16±0.65) had higher levels for the planning dimension compared with the tourism students (6.10±0.56), still there were no significant differences in the estimates (t=-0.391, p=0.697), and students of the tourism program rated significantly higher (t=3.557, p=0.001) for the tradition dimension (6.12±0.59) compared to the engineering students (5.42±0.90). Limitations/implications: The study focus only in one personality trait. Education providers can draw upon these findings a better understanding of their students, becoming relevant for the curriculum. Findings/Conclusions: Students of the tourism academic program score higher in the tradition dimension of the LTO profile. On the contrary, there was no difference regarding the planning factor of the LTO profile. Therefore, LTO scale might be useful for understanding students’ decisions and personal orientations, allowing for academic programs to better focus their curriculum.

  • First report about ants associated with Diaphorina citri Kuwayama in Mexican lime (Citrus aurantiifolia Swingle) in the Apatzingán Valley, Michoacán, México
    por Francisco Javier Avendaño-Gutiérrez el mayo 12, 2022 a las 12:00 am

    Objective: To carry out taxonomic studies that determine which formicine species are associated with the cultivation of Mexican lime. Design/Methodology/Approach: The study was conducted in eight municipalities and 59 localities of the Apatzingán Valley region, Michoacán, Mexico, where Mexican lime (Citrus aurantiifolia Swingle) is produced. A randomized complete blocks design was used in the experiment, where each municipality represented a block. The repetitions were the number of collections, while the experimental unit was a lime sprout infested with Diaphorina citri and ants. The collections were direct and were made with an entomological aspirator. The values obtained were analyzed with the SAS University Edition software (2018). Results: The studied ants belong to the Dolichoderinae, Formicinae, Myrmicinae, Pseudomyrmecinae, and Ponerinae subfamilies, which represent 15 genera and the same number of species. The subfamilies with the greatest presence in the eight municipalities were: Myrmicinae, Dolichoderinae, and Formicinae. The species with the highest impact were Paratrechina longicornis, Forelius mccooki, and Atta mexicana, while Cardiocondyla minutior and Odontomachus sp. had a lower impact. Study limitations/implications: Social insecurity in the eight municipalities and the new form of coexistence. Findings/Conclusions: The studied species prefer dry, warm, and disturbed sites

  • Grapevine viruses in Mexico: studies and reports
    por Karen Guadalupe García Reséndiz el mayo 12, 2022 a las 12:00 am

    Objective: To contribute to the knowledge of the diversity of viruses and the viral diseases reported in grapevines in Mexico, in order to benefit producers and develop comprehensive viral disease control strategies. Design/methodology/approach: The literature search was conducted in databases such as Scopus, Google Scholar, and EBSCO host, using the following keywords alone or in combination: "virus", "plant", "grapevine", and "Mexico". In addition, the INIFAP database was consulted, alongside undergraduate and postgraduate dissertation theses. Results: Only one academic file was found published in an indexed international journal, using the publication finder software; the report corresponds to a grapevine virus present in Mexico. However, based on all the consulted sources, several viral diseases associated with nine grapevine viruses have been reported in Mexico. These species have been grouped into seven genera and six families. The reports come from Aguascalientes (56%) and Baja California (44%). Three registered viral species are associated with the leafroll complex, three with rugose wood, one with fleck, one with infectious degeneration, and one with red blotch disease. Findings/conclusions: Several grapevine viruses associated with major diseases have been reported in Mexico. Unfortunately, most of the reports lack detail and follow-up, and they are not readily available for international researchers; therefore, the lack of knowledge about this subject in Mexico is significant. Monitoring the epidemiology of viral diseases in the grapevine —a national and international relevant crop— is necessary.

  • Corn (Zea mays L.) green matter production in different sowing densities
    por Violeta J. Osorio-Santiago el mayo 12, 2022 a las 12:00 am

    Objective: To evaluate the corn green matter production at different sowing densities, in Valle del Mezquital, Hidalgo, Mexico. Design/Methodology/Approach: The DK-4018 hybrid corn was sown in the spring-summer 2021 cycle. The treatments (T) were different sowing densities: (T1) 112,500, (T2) 120,000, and (T3) 136,000 plants per hectare. The experimental design was completely randomized. The evaluated variables were: plant height at 30, 60, and 76 days after sowing (cm); final stem diameter at ground level (cm); fresh weight (g); and green matter yield (ton ha-1). The results were analyzed with the SAS program (2001) and the means were compared with the Tukey test (p ≤ 0.05). Results: The highest green matter production of the DK-4018 hybrid corn was obtained with a sowing density of 136,000 plants per hectare, with an estimated yield of 114.6 ton. Study limitations/implications: No scientific publications about the DK-4018 hybrid corn green matter production were found. Findings/Conclusions: With a population density of 136,000 corn plants per hectare, 114.6 ton of DK-4018 corn green matter yield is estimated.

  • Performance of soybean cultivars under drought stress and sowing seasons in Brazilian Savannah
    por Alessandra Maria de Lima Naoe el mayo 12, 2022 a las 12:00 am

    Objective: Evaluate the performance of two soybean cultivars submitted to water deficit in two sowing seasons (July 10, 2019, and October 27, 2020), in Tocantinense Savannah, Brazil. Methodology: The experiments were carried out in a greenhouse, in pots. The experimental design used in each experiment was completely randomized in a 4 x 2 factorial scheme with four replications, represented by four irrigation management systems (water deficit in the flowering, grain filling and maturation stages, and without water deficit) and two cultivars (TMG132RR™ and TMG1288RR™). The means were grouped by the Scott-Knott test at 5% significance. The characteristics evaluated were: number of seeds per plant, mass of one hundred seeds in grams, number of pods per plant, plant height and grain yield per hectare (GY) in kilograms. Results: In the two seasons, the water deficit during grain filling affected the number of pods and seeds per plant, the 100 seeds mass, and the grain yield of both cultivars. Implications: The water availability and sowing seasons are environmental factors with the greatest impact on cropping. Therefore, understanding how cultivars behave in adverse environmental situations is of great importance to management programs. Conclusions: The cultivar TMG132RR™ was less sensitive to water deficit, whereas the cultivar TMG1288RR™ was more productive under adequate conditions of temperature and water availability.

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