Adaptive genetic variation in seed and seedling traits was evaluated for 280 families from 220 locations. Factor scores from three principal components were related by multiple regression to latitude, longitude,elevation, slope, and aspect of the seed source, and by classification analysis to seed zone and elevation band in seed zone. Location variance was significant but not large. Multiple regression equationsexplained less than 50 percent of location variance. Slope-spect variables were important.
Publication year
1994
Authors
Language
English
Keywords
breeding, genetic diversity within species, genetic variation, pinus ponderosa, provenance, seedlings
