TECHNIQUES FOR FOREST CULTIVATION

Author: IGLESIAS RANZ ANGEL.
Year: 2003.
University: POLITÉCNICA DE MADRID [www.upm.es].
Place of defense: ESCUELA TÉCNICA SUPERIOR DE INGENIEROS DE MONTES.
Place of preparation: ESCUELA TECNICA SUPERIOR DE INGENIEROS DE MONTES.

Summary: This Doctoral Thesis deals with the analysis of the response of stocking Quercus ilex. L. upon certain factors, in order to achieve higher rates of suprvivencia in arid areas of the province of Avila. The objectives are set out in the characterization of the plant before planting according to the different production methods selected, the characterization of the field to plant in the three years of planting, the study of survival as those factors and the analysis of the effect the recepe in plants. The results marked the plant before and after planting, determine the influence of the type of container in the plant and supersistencia years after planting. Likewise, it is concluded that planting provides better survival results that the plant and that the guards are not helpful in terms of this trial. It was also found that there were no significant differences between plants one and two years in terms of their survival.

Author: Mutke Regneri Sven.
Year: 2004.
University: POLITÉCNICA DE MADRID [www.upm.es].
Place of defense: Escuela Técnica Superior de Ingenieros de Montes.
Place of preparation: ETSI Montes UPM.

Summary: We studied the biological processes involved in the production of pineapple and pinion in plots grafted Pinus pinea L. Hierarchical at various scales, from the test plot and the tree until the annual outbreak. Includes an exploratory analysis of the production data of six banks clonal located in the provinces of Madrid and Valladolid wide plot and the study of relations between the abundance and quality of the harvest with meteorological factors of the year. At tree individual genetic parameters were estimated for the average annual production of pineapple, after adjusting effects and environmental covariates significant differences in the size of the tree and local effects estimated by autocorrelaciones between the nearest neighbors. The estimate of the degree of genetic determination of the production of pineapple was 7-41% for different clonal banks, which translates into a genetic gain of 4-25% expected for the selection of the 10% Senior clones evaluated ( selection intensity 1.7-1.8). Among the test sites, it found significant interactions genotipo - ambiente correlated with the climate gradient. The analysis of the architectural crown confirmed the association of the formation of pineapple with the force growing at annual outbreak. The reiteration siléptica widespread branches, resulting in the cup poliárquica typical of the species, is interpreted as a strategy to maximize the number of points fruiting. The work resulted in four scientific articles published and fifth under review to be included as annexes to the memory. SUMMARY: The PhD thesis studies the biological bases of cone and seed yield in grafted Stone pine orchards in a multiscale approach. Yield data clone of six banks in Inner Spain were analyzed with weather and related registers. Genetic parameters of cone production at scale tree were estimated after adjustment of both environmental size-yield correlations and nearest neighbor correlations. The degree of genetic determination was about 7-41% in the different trials, with an expected gain of 4-25% genetic selecting the top 10% of the clones tested. Genotype-by-site interactions were correlated with climate gradient. Architectural analysis of the grafted Stone pins confirmed that female strobilus formation is limited to the most vigorous tips, thus the generalized sylleptic reiteration of Stone pine crown structures is interpreted as reproductive strategy to maximize potential flowering points and cone output. Five papers with the main results, four of them peer-reviewed and published, are appended to the Thesis.