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Diversity 2018, 10(4), 121; https://doi.org/10.3390/d10040121

Growth and Survival of Endemic Cacti under Different Substrate Types and Sun Exposures for Their Optimal Establishment in Northeastern Mexico

1
Facultad de Agronomía, Universidad Autónoma de Nuevo León, Campus de Ciencias Agropecuarias, Francisco Villa s/n, Col. Ex-Hacienda “El Canadá”, Escobedo, Nuevo León C.P 66050, Mexico
2
Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Departamento de Botánica, Av. Universidad s/n Cd. Universitaria, San Nicolás de los Garza, Nuevo León C.P 66451, Mexico
3
Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Unidad Saltillo, Ramos Arizpe, Coahuila C.P 25900, Mexico
*
Author to whom correspondence should be addressed.
Received: 21 October 2018 / Revised: 7 November 2018 / Accepted: 7 November 2018 / Published: 10 November 2018
PDF [736 KB, uploaded 10 November 2018]

Abstract

Cactaceae are subject to strong anthropogenic pressure, which motivates the search of strategies for its conservation. This paper aimed to evaluate the survival and growth of eight native species from northeastern Mexico, in order to propose their in-situ conservation, applying three substrates (perlite/peat-moss, zeolite/peat-moss and natural soil), in two sun exposures (west and east). The variability of both survival and growth resulted dependent on substrate type and sun exposure. Astrophytum myriostigma presented higher diameter at eastern aspects (51.20 and 42.63 mm on zeolite/peat-moss and perlite/peat-moss, respectively), and the higher heights were also registered at eastern aspects, with Sclerocactus scheeri (7.38.cm on perlite/peat-moss and 6.98 cm on natural soil) and A. myriostigma (6.8 cm on zeolite/peat-moss and 6.08 cm on perlite/peat-moss). As for survival, the highest value (100%) was recorded with the treatments of West-Zeolite/peat-moss and East-Perlite/peat-moss, in six of the eight species evaluated (A. myriostigma, Acharagma roseana, Escobaria dasyacantha, S. scheeri and Mammillaria prolifera), while the lowest value (0%) was recorded with M. plumosa in the three western combinations. The best growth and survival responses were observed in A. myriostigma and S. scheeri under east exposure and zeolite, being the best combination, to be considered for their optimal establishment.
Keywords: Cactaceae; seedlings survival; cacti growth; zeolite substrate; sun exposure Cactaceae; seedlings survival; cacti growth; zeolite substrate; sun exposure
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lidia Rosaura, S.C.; Rahim, F.P.; Lourdes, D.J.; Maginot, N.H. Growth and Survival of Endemic Cacti under Different Substrate Types and Sun Exposures for Their Optimal Establishment in Northeastern Mexico. Diversity 2018, 10, 121.

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