Agro Productividad 2022-05-25T00:00:00+00:00 Dr. Jorge Cadena Iñiguez Open Journal Systems <p><strong>Agro Productividad</strong> 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.</p> <p>También aborda temáticas sobre procesos económicos, sociales y ambientales que impactan la productividad agrícola y el desarrollo rural.</p> <p>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 <a title="CONACYT (Competencia Internaciona)" href=""><strong>CONACYT </strong>(Competencia Internacional)</a>,<a href=""><em> EBSCO</em></a>, <a href="">CENGAGE LEARNING</a>, INC., <a href=";user=BX46e5AAAAAJ">Google Académico</a> además de <a href="">Zoological Records</a> en <a href="">Master Journal List</a> de <a href="">Clarivate Analitycs</a> (antes ISI), <a href=";local_base=per01"><em>PERIODICA</em></a>-<a href="">Biblat</a>, <a href="">CABI</a> y <a href="">CAB Abstracts</a>, <a href="">Latindex (Directorio</a> y <a href="">Catálogo</a>), <a href="">REDIB</a>, <a href="">SIBDI</a>, <a href="">MIAR</a>, <a href=";and_facet_source_title=jour.1389419&amp;viz-st:aggr=mean">DIMENSIONS</a>, <a href="">CORE</a>,<a href=""> Scilit</a>, <a href=";cc=2394">AgEconSEARCH , </a><a href=";referer=brief_results">WordCat </a>, <a href=";refid=dctableen">BASE</a>, <a title="EBSCOhost (Fuente académica Plus)" href="">EBSCO<em>hos</em>t (Fuente académica Plus)</a> <a style="background-color: #ffffff; font-size: 0.875rem;" href="">AURA</a>, y recientemente <a href=";colors=7&amp;lang=de&amp;jq_type1=QS&amp;jq_term1=Agro+productividad">Electronic Journals Library (EZB)</a>, <a href="">Refseek</a>,<a href=""> OpenAire</a>, <a href=";view=full">ZEITSCHRIFT DATENBANK</a>.</p> Clonal propagation of Gmelina arborea Roxb grown in southeastern Mexico 2020-11-01T22:42:23+00:00 MARYNOR ELENA RAMIREZ Alejandro Nieto López Kete M. Feliciano-Sánchez Nicolás González-Cortés <p><strong>Objective: </strong>To evaluate the clonal behavior of <em>Gmelina arborea Roxb </em>from mother plant cuttings in southeastern Mexico.</p> <p><strong>Design/Methodology/Approach:</strong> A completely random design of three treatments with four repetitions was established; the treatments were concentrations of IBA (4000, 6000 and 3000 ppm). The following were evaluated: percentage of rooting, days until root formation, type of cutting, number of roots, length of roots and absorbent roots. Analysis of variance and Tukey’s test were performed with Statistix 9.0.</p> <p><strong>Results: </strong>In the analysis of variance (ANOVA), significant factors were observed (callus and number of roots), and also, a fluctuation was observed in the percentage of rooting from 84% to 92%. Regarding the number of roots and cm of roots, there were significant differences in the presence of number of roots of the 6000 ppm treatment. </p> <p><strong>Conclusions: </strong>The concentration of IBA in the rooting generates good results in different concentrations, depending on the cutting implemented, the factors callus and number of roots; significant records were obtained between treatments, favoring the acceleration of presence of roots.</p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad Analysis of structure and function of an agroecological beacon: The case of the Agroecological Educational Center Los Álamos 2021-06-22T20:40:55+00:00 Fernando Ríos y Valles-Boyselle José Regalado López José A. Méndez-Espinoza Javier Ramírez-Juárez Nicolás Pérez-Ramírez Ignacio Ocampo-Fletes <p><strong>Objective: </strong>To determine whether the Agroecological Educational Center Los Álamos (<em>Centro Educativo Agroecológico Los Álamos</em>, CEA), located in the state of Tlaxcala, Mexico, fulfills the elements of structure and function to be identified as an agroecological beacon.</p> <p><strong>Design/Methodology/Approach: </strong>A mixed approach was used (quantitative and qualitative). A study case of the CEA was constructed to understand both the context and the structural and functional characteristics that currently configure it. First, an exhaustive review of secondary information related to the structure and functioning of agroecological beacons in other regions or countries was made. In a second stage, a comparative analysis of the structural and functional characteristics of agroecological beacons was conducted with the data generated in the study case. In the third stage, factors were analyzed that make possible or limit the CEA to develop as an agroecological beacon.</p> <p><strong>Results:</strong> The CEA performs and fulfills with participant youth the function of agroecological beacon, since it is an efficient tool for education, training, knowledge exchange and promotion of agroecology. This favors its dissemination and scaling in the peasant communities where the young people who participate in the CEA are from.</p> <p><strong>Study Limitations/Implications:</strong> The results are only applicable to the study case due to the limitations present in this methodology in terms of its results not allowing to elaborate general explanations.</p> <p><strong>Findings/Conclusions:</strong> The CEA complies with sufficient elements to catalog it as a sectorial agroecological beacon, which is contributing a methodological and strategic light to respond to the challenge of inter-generational transmission of understanding, knowledge and agroecological projects in the peasant indigenous youth sphere</p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad Maize tolerance to Spodoptera frugiperda (J. E. Smith) leaf damage and insecticide application 2021-09-25T21:58:35+00:00 Antonia Hernandez-Trejo Jose Alberto Lopez Santillan Benigno Estrada-Drouaillet Zoila Reséndiz Ramírez Sóstenes Edmundo Varela Fuentes Juana María Coronado-Blanco Rosa Ana Malvar <p><strong>Objective: </strong>To evaluate the tolerance of Tamaulipas native maize populations to the leaf damage caused by <em>Spodoptera frugiperda</em>.</p> <p><strong>Design/Methodology/Approach:</strong> During the two agricultural cycles of 2019, the leaf damage by <em>S. frugiperda</em> and the grain yield decrease in 10 populations of native maize were evaluated In Güémez, Tamaulipas.</p> <p><strong>Results: </strong>Leaf damage by <em>S. frugiperda</em> was minimal when synthetic insecticide (emamectin benzoate) was applied in the autumn-winter agricultural cycle; meanwhile, it was greater in the spring-summer cycle, but its levels remained lower than the rest of the <em>S. frugiperda</em> management strategies. Leaf damage was higher during the spring-summer cycle because the environmental temperature was higher than in the autumn-winter cycle.</p> <p><strong>Study limitations/Implications: </strong><em>Spodoptera frugiperda</em> is an important pest of maize. It is mainly controlled using synthetic insecticides, which cause environmental and human health risks. The use of tolerant cultivars is a strategy that reduces these risks.</p> <p><strong>Findings/Conclusions: </strong>The TML<sub>2</sub>S<sub>3</sub> and VHA maize populations were tolerant to <em>S. frugiperda</em> leaf damage in both agricultural cycles; it is considered as the base germplasm for a program aimed at enhancing this characteristic.</p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad Effect of selenium on semen quality and fertility of rams 2021-10-03T23:51:20+00:00 Enrique Hernández-Carrillo Héctor Sánchez-Pineda Jorge Tórtora-Pérez Francisco Antonio Cigarroa Vázquez María Reyes-García Marisela Peralta-Lailson José A. Hernández-Marín <p><strong>Objective: </strong>To evaluate the effect of different selenium (Se) doses on semen quality and fertility of rams.</p> <p><strong>Design/Methodology/Approach</strong>: Se was administered subcutaneously each month to nine two-month-old rams (from April 2018 to February 2020). The treatments were: T1 = without Se, T2 = 0.1 mg Se kg<sup>-1</sup>, and T3 = 0.3 mg Se kg<sup>-1</sup>. Semen evaluations were carried out using an electroejaculator; a total of 180 ejaculations were analyzed. The rams with better semen quality (one per treatment) were subjected to a mating. The following variables were evaluated: volume (Vol), masal motility (MM), progressive motility (MP), sperm concentration per mL and ejaculation, acrosome integrity percentage, living spermatozoa, normal spermatozoa, and fertility percentage. The normal distribution variables were evaluated using an analysis of variance (ANOVA) and Tukey’s comparison test (Tukey, 0.05); the percentages were raised to the inverse sine in order to perform the appropriate ANOVA. Fertility was analyzed using a χ<sup>2</sup> test.</p> <p><strong>Results: </strong>There was no difference in semen quality and fertility percentage (<em>p</em> &gt; 0.05). The ejaculation volume showed differences between treatments (<em>p</em> ≤ 0.05).</p> <p><strong>Study Limitations/Implications: </strong>A study including a higher number of rams and a previous fieldwork practice should be carried out, in order to evaluate semen parameters. These evaluations would help to accurately estimate semen quality and fertility, as well as to corroborate the results.</p> <p><strong>Findings/Conclusions:</strong> Se did not improve semen quality and fertility of rams</p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad PHENOTHYPIC DIVERSITY IN 15 WILD POPULATIONS OF TOMATO (Solanum lycopersicum L.) 2021-11-16T20:36:36+00:00 JUAN PORFIRIO LEGARIA SOLANO Rommel I. Alvarado-Rodríguez <p><strong>RESUMEN</strong></p> <p><strong>Objetivo: </strong>Generar información sobre la variabilidad morfo-agronómica de 15 poblaciones silvestres de tomate, originarias de diferentes zonas de México.</p> <p><strong>Diseño/metodología/aproximación: </strong>Se utilizó un diseño experimental completamente al azar con 17 tratamientos (poblaciones) y 10 repeticiones (individuos). La unidad experimental consistió de una planta (individuo), donde se evaluaron sesenta y cuatro descriptores morfológicos y agronómicos propuestos por Bioversity Internacional. Se realizó un análisis de varianza con medidas repetidas y se comparó las diferencias de medias por la prueba de rangos múltiples Tukey (P ≤ 0.05). Las variables cuantitativas y cualitativas se sometieron a un análisis de componentes principales y de correspondencias múltiple, respectivamente.</p> <p><strong>Resultados: </strong>Se encontró amplia variabilidad en características morfológicas y en atributos de calidad de fruto, como consistencia y sólidos solubles totales. Los análisis de componentes principales y de correspondencia múltiple explicaron la variación fenotípica con 67.41 y 42.06 % en los primeros tres componentes y dimensiones, respectivamente. Las características más discriminantes fueron las de frutos e inflorescencias, que separaron a las poblaciones en cuatro grupos. El primero se integró por plantas con inflorescencias multíparas, con frutos tipo ‘heirloom’ de color rojo y tamaños pequeños a intermedios; el segundo por inflorescencias uníparas y multíparas, con frutos tipo ‘cherry’ y ‘grape’ de colores amarillo, naranja y rojo, y tamaños muy pequeños; el tercero por inflorescencias uníparas y bifurcadas, con frutos tipo bola y ‘cocktail’ de colores rojo, naranja y amarillo, y tamaños pequeños a intermedios; y el cuarto por inflorescencias uníparas, con frutos tipo bola de color morado y tamaños intermedios.</p> <p><strong>Limitaciones del estudio/implicaciones: </strong>Para entender mejor la variabilidad y relaciones filogenéticas de estas poblaciones, se debe realizar una caracterización molecular.</p> <p><strong>Hallazgos/conclusiones: </strong>Todas las poblaciones silvestres mostraron una alta variabilidad fenotípica en las fases vegetativa y reproductiva, siendo las características de fruto e inflorescencia las que más contribuyeron a su discriminación. Las formas de frutos más frecuentes fueron ligeramente aplanadas y redondeadas, y los tamaños de frutos fueron muy pequeños y pequeños. Generalmente, las plantas indeterminadas mostraron grados Brix más altos que las semi determinadas. Los frutos rojos tuvieron Brix más altos que los naranjas, amarillos y morados, pero estos últimos mostraron mejor sabor. Se descubrió un tipo de hoja no reportado en los descriptores para tomate, el cual se denominó ‘con brotes’.</p> <p><strong>Palabras clave: </strong><em>Solanum lycopersicum</em> L., poblaciones nativas, caracterización morfo-agronómica.<strong>&nbsp; </strong></p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad Nutritional composition of Rhynchophorus palmarum L. 1758 (Coleoptera: Curculionidae) larvae in palm trees of the Mezquital Valley, Hidalgo, Mexico 2021-12-02T00:49:51+00:00 Leodan T. Rodríguez-Ortega Alejandro Rodriguez Ortega Filogonio J. Hernández-Guzmán Judith Callejas-Hernández Fernando González-Cerón Juan Noguez-Estrada <p><strong>Objective:</strong> To determinate the nutritional composition of larvae of the <em>Rhynchophorus palmarum</em> L. 1758 (Coleoptera: Curculionidae) beetle in palm trees of the Mezquital Valley, Hidalgo, Mexico.</p> <p><strong>Design/Methodology/Approach:</strong> In January 2020, 250g of South American Palm Weevil (<em>Rhynchophorus palmarum</em>) larvae were collected from damaged Canary Island date palms (<em>Phoenix canariensis</em>). The larvae were gathered at the Universidad Politécnica de Francisco I. Madero, located in Tepatepec, Hidalgo, Mexico. They were placed in a plastic jar and later in a freezer for conservation and transportation to the Departamento de Nutrición Animal y Bioquímica, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, where their nutritional composition was evaluated by proximate chemical analysis.</p> <p><strong>Results: </strong>In their proximate composition, the larvae of <em>R. palmarum </em>presented a protein concentration of 25.52% (dry basis) and of 9.04% (wet basis), ether extract of 19.77%, dry matter of 35.74%, humidity of 64.26%, ashes of 0.70%, crude fiber of 1.64%, nitrogen-free extract of 4.58%, calcium of 0.20%, and phosphorus of 0.31%.</p> <p><strong>Study Limitations/Implications:</strong> No previous research about the use of this insect as human food in Mexico was found.</p> <p><strong>Findings/Conclusions:</strong> We conclude that these larvae can be exploited for human and livestock food (as a protein and energy supplement) and even to enrich and prepare conventional foods for society.</p> 2022-05-25T00:00:00+00:00 Derechos de autor 2022 Agro Productividad