Resumen

MOLAR PENA, Eliana et al. Evaluation of progeny tests of Cedrela odorata L. in different regions of Mexico. Rev. mex. de cienc. forestales [online]. 2025, vol.16, n.90, pp.113-132.  Epub 18-Ago-2025. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v16i90.1544.

Progeny trials provide information on genotype performance, stability and adaptation in different environments, with the aim of refining and converting them into seed orchards that produce high-quality seed and genetic diversity. In three Cedrela odorata progeny trials established in Venustiano Carranza, state of Puebla, Tihuatlán, state of Veracruz and Tamazunchale, state of San Luis Potosí, the objective of this study was to evaluate the morphological variation between sites and families, and to identify the families with the best development and growth. The trials were established with the same families, in 16 complete randomized blocks with 64 families per block. After three years, the survival percentage, height, normal diameter, clean stem height, stem shape, bifurcation and incidence of Hypsipyla grandella were recorded; using these variables, the families were ordinally classified. Significant differences were observed between sites in survival, height and diameter. Survival rates were 80 % in Tamazunchale, 77 % in Venustiano Carranza and 35 % in Tihuatlán. Regarding height and normal diameter, Tamazunchale had the best averages (5.8 m and 7.1 cm, respectively), followed by Venustiano Carranza (3.5 m and 4.2 cm) and Tihuatlán (2.5 m and 2.5 cm). Within sites, families 7, 45, and 62 had outstanding and stable performance in the three environments tested. Although no variation was detected between families, the conditions of each site influenced the performance of the trees, with the Tamazunchale trial standing out with the best performance and commercial characteristics.

Palabras llave : Red cedar; ordinal ranking; progeny trials; families; environmental variation; morphological variation.

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