Stand structure, biomass production and dynamics of white spruce (Picea glauca (Moench) Voss) were investigated in four plantations, ages 4, 10, 18, and 28 years, respectively, on similar lacustrine soils. Dry ...

Changes in the frost hardiness of balsam poplar (Populus balsamifera L.) cuttings from four populations along a latitudinal transect from N. Wisconsin to Bearskin L, Ontario, were examined during the spring of 1987. ...

One of the basic assumptions of the mixed-mating model is that the pollen pool of a population is homogeneous. However mounting evidence would suggest that a homogeneous pollen pool is not the norm in populations of ...