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Revista Chapingo serie ciencias forestales y del ambiente
versión On-line ISSN 2007-4018versión impresa ISSN 2007-3828
Resumen
BARRERA-RAMIREZ, Rubén et al. Interaction and compatibility in reciprocal grafting with two varieties of Pinus pseudostrobus Lindl. Rev. Chapingo ser. cienc. for. ambient [online]. 2024, vol.30, n.1, rrchscfa202210079. Epub 03-Dic-2024. ISSN 2007-4018. https://doi.org/10.5154/r.rchscfa.2022.10.079.
Introduction:
Compatibility between the parts involved in grafting is one of the factors defining its success, growth, and productivity.
Objective:
The aim of this study is to determine the effect of the level of taxonomic affinity in the scion/rootstock combination on the survival and shoot growth of reciprocal grafts of Pinus pseudostrobus var. pseudostrobus and P. pseudostrobus var. oaxacana.
Materials and methods:
The effect of the following three factors was determined: (a) three affinity levels, (b) two varieties of P. pseudostrobus and (c) four scion/ rootstock genotypes, on survival and shoot growth (Sg). An ANOVA was performed to determine the effect of factors a, b and c and their interactions on survival and Sg, and a Log-Rank test was carried out for survival analysis.
Results and discussion:
Factor a determined that survival was higher in intervarietal grafts (53.3 %); factor b indicated that grafts with scions of var. pseudostrobus had higher survival (47.2 %); finally, factor c showed the existence of genotypes that increase success if used as scion and decrease if used as rootstock. Sg only showed statistical differences associated with the effect of factor c, being higher for genotype 62 of var. pseudostrobus (18.1 ± 0.63 cm), and in its interaction with factor (a).
Conclusions:
There is an adequate level of compatibility between the two varieties of P. pseudostrobus with significant effect of variety and scion genotype especially in intervarietal grafting (survival greater than 70 %).
Palabras llave : taxonomic affinity; terminal cleft grafting; homografts; intervarietal grafts; genotypes.