Conservation of the genetic diversity of local corn (Zea mays L.) in the Yucatan Peninsula, Mexico

Authors

  • Noel A. González-Valdivia Instituto Tecnológico de Chiná, Calle 11 entre 22 y 28, Colonia Centro Chiná 24050, Campeche, México
  • William Cetzal-Ix Instituto Tecnológico de Chiná, Calle 11 entre 22 y 28, Colonia Centro Chiná 24050, Campeche, México
  • Saikat Kumar Basu Department of Biological Sciences, University of Lethbridge, Lethbridge, AB Canada T1K 3M4
  • Isidra Pérez-Ramírez Instituto Tecnológico de Chiná, Calle 11 entre 22 y 28, Colonia Centro Chiná 24050, Campeche, México
  • Jesús F. Martínez-Puc Instituto Tecnológico de Chiná, Calle 11 entre 22 y 28, Colonia Centro Chiná 24050, Campeche, México
  • Peiman Zandi Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, People’s Republic of China

Keywords:

Campeche, conservation, corn, cultivation, diversity genetic, Mexico, Yucatán

Abstract

The production of native corn at regional level is greatly limited by the seasonality of rainfall, availability of adequate lands, poor fertility status of the soil, high input costs and constraints of resources of the local corn growers and/or producers. The challenges of reduced cultivable area give very little opportunity for increasing production area in a sustainable manner; it is important to note that the soil recover their fertility status through crop rotation and prolonged rest period (> 25 years) known as sequential agroforestry system or "milpa". During 2015, corn collections were performed in the Yucatan Peninsula, Mexico that included five races from the Yucatan (in localities of Nohacal and Peto) and Campeche (Calakmul, Suc-Tuc, Sakabchen, I Chek) states. The races identified were: 1) Nal-Tel (gallito), 2) Dzit Bacal, 3) Xnu’uc Naal (Tuxpeño), 4) Palomero and, 5) Tabloncillo. The local varieties, Pix Cristo (Knees of Christ), Eh Hu (Purple maize) and Chac Chu’ub (Chac´s Blood or Red maize), are included within the Tuxpeño (Xnu´uk Naal) race. The land race of corn that is in imminent danger of extinction is Nal-Tel, characterized by its precocity and ability to escape periods of low rainfall; is important to rescue it for adoption to the practices of local and regional production. The adaptation of this race as a germplasm is important due to its resilience to climate change itself. Palomero, Tabloncillo, Pix Cristo, Chac Chu´ub and Eh Hu can thus be used in traditional food industry, to preserve the traditional knowledge and to provide opportunities for additional income for the local, rural communities. Yellow Palomero and Tabloncillo races are new records of germplasm for the region; and hence essential is exchanging their seeds among local producers and growers.

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References

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Published

2016-12-31

How to Cite

González-Valdivia, N. A., Cetzal-Ix, W., Basu, S. K., Pérez-Ramírez, I., Martínez-Puc, J. F., & Zandi, P. (2016). Conservation of the genetic diversity of local corn (Zea mays L.) in the Yucatan Peninsula, Mexico. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae, 1(1), 71–84. Retrieved from https://aupcstudianaturae.uken.krakow.pl/article/view/5392

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Section

Experimental Biology

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