Phenological and morphological responses of mesic and dry site sources of coastal Douglas-fir to water deficit

Patterns of genetic variation in morphological and phenological responses to water deficit are described in seedling progeny of 4 populations of coastal Pseudotsuga menziesii var. menziesii sampled from coastal and inland sites in Oregon. Inland populations were characterized by early budset, slower rates of shoot extension, and higher root-shoot ratios. A significant fraction of total variability was attributable to differences among families within populations. -from Authors