1. Spatial analysis of phenotypic variables in a clonal orchard of Pinus arizonica Engelm. in northern Mexico
- Author
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Marín Pompa-García, Rolando Alvarado-Barrera, José Manuel Zúñiga-Vásquez, Marcos Jiménez-Casas, and Colegio de Postgraduados, Campus Montecillo, Postgrado en Ciencias Forestales
- Subjects
Germplasm ,Geospatial analysis ,Ecology ,biology ,Forestry ,Stepwise regression ,Spatial distribution ,biology.organism_classification ,computer.software_genre ,Pinus arizonica ,Forest restoration ,Statistics ,Common spatial pattern ,Orchard ,computer ,Mathematics - Abstract
Introduction: Seed orchards provide germplasm genetically suitable for use in forest restoration. Knowledge of the spatial distribution of attributes is crucial for their management. Objective: To model cone production and tree size variables in a clonal orchard of Pinus arizonica Engelm. from a geospatial perspective in order to determine their behavior and distribution. Materials and methods: The spatial pattern of tree size variables and cone production of 126 ramets were determined through a geospatial analysis, using the Getis-Ord G statistic. A Pearson correlation analysis (P ≤ 0.05) determined the variables best associated with cone production and these were examined with stepwise regression. In terms of cone production, the best combination was modeled through a geographically weighted regression. Results and discussion: Statistically significant (P Conclusion: Tree size variables and cone production presented a tendency towards clustering. The use of a geospatial perspective allowed a better understanding of the spatial dynamics of tree size variables.
- Published
- 2019
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