Diversidad de maiz en la sierra sur de Oaxaca, México: conocimiento y manejo tradicional

Rendón-Aguilar, Beatriz; Aguilar-Rojas, Verónica; Aragón-Martínez, María del Consuelo; Ávila-Castañeda, José Francisco; Bernal-Ramírez, Luis Alberto; Bravo-Avilez, David; Carrillo-Galván, Guadalupe; Cornejo-Romero, Amelia; Delgadillo-Durán, Ernesto; Hernández-Cárdenas, Gilberto; Hernández-Hernández, Mireya; López-Arriaga, Alejandro; Sánchez-García, José Miguel; Vides-Borrell, Eric; Ortega-Packzca, Rafael

doi:10.18387/polibotanica.39.9

Cited by 6 publications

(12 citation statements)

References 19 publications

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“…Data as described in Rendón‐Aguilar et al . (), reproduced with permission from Polibotánica, México.…”

Section: Landrace Locality Elevation Vegetation Environmental Facmentioning

confidence: 99%

“…Similarly, Nal‐Tel is specifically used to prepare beverages and candies and is exchanged only in San Francisco Loxicha (Rendón‐Aguilar et al . ), resulting in a reduction of species richness in both landraces.…”

Section: Landrace Locality Elevation Vegetation Environmental Facmentioning

confidence: 99%

“…In some regions of Mexico, landraces of maize (Zea mays) are cultivated across a broad elevation range and their grains show great variability in their physical characteristics (Ortega-Paczka 2007). Zapotec ethnic groups in the Sierra Sur de Oaxaca, within the region known as "Los Loxicha" (San Agustín Loxicha, Candelaria Loxicha, San Baltazar Loxicha, San Bartolomé Loxicha and Santa Catarina Loxicha municipalities), cultivate ten maize landraces (20% of those reported in Mexico) along an elevation gradient of 128-2,114 m with different vegetation types, resulting in a large variety of agroecosystems (Ortega-Paczka 2007; Rendón- Aguilar et al 2015). San Agustín Loxicha constitutes an ideal system to analyze the insect community associated with maize grains, as the majority of landraces of the region are cultivated within this municipality.…”

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confidence: 99%

“…Traditional management influences the diversity of grain insect communities. Olotillo grains, used to make tortillas, are intensively exchanged among farmers within the five municipalities of Los Loxicha (Rendón- Aguilar et al 2015). This increases the probability of insects being transferred to different localities and/or elevations, enhancing community richness value.…”

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confidence: 99%

“…Comiteco is also used to make tortillas, but not many farmers cultivate it and the exchange of its grains is restricted to Juquilita. Similarly, Nal-Tel is specifically used to prepare beverages and candies and is exchanged only in San Francisco Loxicha (Rendón- Aguilar et al 2015), resulting in a reduction of species richness in both landraces.…”

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confidence: 99%

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Diversity and trophic structure of insects associated with grains of three maize landraces in San Agustín Loxicha, Oaxaca, Mexico

Callejas-Chavero

Cornejo-Romero

Serrato-Díaz

et al. 2018

Entomological Science

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Diversity and trophic structure of grain insect communities were examined in Olotillo, Nal‐Tel and Comiteco maize landraces cultivated within a milpa agroecosystem by Zapotec ethnic groups in Mexico. Higher insect diversity was expected in Olotillo, whose cultivation comprises a wide variety of agroecosystems, and low insect abundance in Nal‐Tel with small grains and thick testa. Forty Olotillo cobs were collected at low, medium and high elevations, and 40 each of Nal‐Tel at low elevation and Comiteco at high elevation. Cobs were monitored for 30 days under controlled laboratory conditions until all insects emerged. Thickness of testa of 400 grains from each landrace was measured. Community composition and trophic structure were described and standard diversity indices were estimated. A total of 9,708 insects, corresponding to five orders, 24 families and 36 species, were recorded, with six species not previously reported in this region. Insect guilds were composed of 70% phytophages, 22% parasitoids and 8% predators. Species richness was S = 27, 16 and 8 in Olotillo, Comiteco and Nal‐Tel, respectively. Nal‐Tel and Olotillo had the highest diversity index values (H′ = 1.32 and 1.2, respectively) and no significant differences; Comiteco had the lowest value (H′ = 0.65) and differed significantly from the other landraces. Comiteco and Olotillo, which have large grains and thin testa, showed higher insect abundance than Nal‐Tel, which has small grains and thick testa and showed lower abundance. Results support our hypotheses and highlight the role of traditional crop management in insect agrobiodiversity maintenance and conservation.

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“…Data as described in Rendón‐Aguilar et al . (), reproduced with permission from Polibotánica, México.…”

Section: Landrace Locality Elevation Vegetation Environmental Facmentioning

confidence: 99%

Section: Landrace Locality Elevation Vegetation Environmental Facmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Diversity and trophic structure of insects associated with grains of three maize landraces in San Agustín Loxicha, Oaxaca, Mexico

Callejas-Chavero

Cornejo-Romero

Serrato-Díaz

et al. 2018

Entomological Science

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Sistemas agrosilvícolas de comunidades mixtecas y afromexicanas en la costa de Oaxaca, México

Pérez-Nicolás,

Blancas,

Moreno-Calles

et al. 2024

Bot. Sci.

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Antecedentes: Los sistemas agrosilvícolas (SA) integran diversidad agrícola, forestal y cultural. En regiones costeras de México han sido poco estudiados, particularmente los manejados por mixtecos y afromexicanos de la costa de Oaxaca. Preguntas: ¿Qué SA se encuentran en comunidades mixtecas y afromexicanas?, ¿Cuáles son las especies útiles, formas de manejo, prácticas agrícolas y agroforestales de los SA? Especies de estudio: Diversas. Sitio y años de estudio: Santa María Chicometepec, Cerro de la Esperanza, Collantes, Santa Elena Comaltepec, San Agustín Chayuco, Santiago Tetepec, Oaxaca. Octubre 2021 a octubre 2022. Métodos: Se realizaron 60 entrevistas semiestructuradas a especialistas locales en tres comunidades mixtecas y tres afromexicanas. Se preguntó acerca de especies útiles, sistemas agrosilvícolas, prácticas agrícolas, agroforestales y de manejo. Se realizaron recorridos y colectas de ejemplares de herbario. Se describió cada sistema por sus prácticas agroforestales y de manejo. Se registró el número de especies útiles por categoría de uso y grupo cultural. Resultados: Se documentaron y describieron seis SA: milpa, potreros, solares, acahuales, piñal y cocotal. Las prácticas agrícolas en comunidades mixtecas se realizan con herramientas e insumos básicos y la producción tiene un fin de autoconsumo y venta local, mientras que en comunidades afromexicanas son tecnificadas y su destino es la venta regional. Linderos y árboles aislados fueron las prácticas agroforestales más comunes. Conclusiones: Mixtecos y Afromexicanos comparten SA, formas de manejo y prácticas agroforestales, difieren en las prácticas agrícolas. En los SA se conservan principalmente especies comestibles y maderables. El número de especies útiles es similar en comunidades mixtecas y afromexicanas.

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Early testing on S1 lines of black corn (Zea mays L.) from the Ecuadorian highlands

Merino

Viera

Garófalo

et al. 2022

Manglar

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Maize (Zea mays L.) germplasm from the Ecuadorian Higlands has low tolerance to inbreeding especially in starchy cultivars. To create competitive varieties at the commercial level it is necessary to identify outstanding progenitor lines by early testing. The purpose of this research was to evaluate the yield potential of S1 lines of black corn by early testing. The experiment was conducted at the “Tunshi” Experiment Station, Licto parish, Chimborazo province, Ecuador using a complete random block design with four replications. Twenty-four treatments were evaluated, each consisting of an S1 line of black corn. Agronomic traits were registered and the percentage of inbreeding depression was calculated. The lines presented statistical differences (P ≤ 0.05) in the variables days to male and female flowering, plant height, ear height, leaf disease, ear length, weight of 100 kernels and grain yield. All the variables showed inbreeding depression, except days to male flowering, which presented a low increase. Lines 16, 15 and 22 were the most productive with yields of 2.00; 2.08 and 1.95 t ha-1 respectively. These results allow to select lines with less depressive effects on yield produced by inbreeding, and to continue with the improvement processes of black maize.

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Diversidad de maiz en la sierra sur de Oaxaca, México: conocimiento y manejo tradicional

Cited by 6 publications

References 19 publications

Diversity and trophic structure of insects associated with grains of three maize landraces in San Agustín Loxicha, Oaxaca, Mexico

Diversity and trophic structure of insects associated with grains of three maize landraces in San Agustín Loxicha, Oaxaca, Mexico

Sistemas agrosilvícolas de comunidades mixtecas y afromexicanas en la costa de Oaxaca, México

Early testing on S1 lines of black corn (Zea mays L.) from the Ecuadorian highlands

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