The physiological condition and carbohydrate reserves of the seedling determines its resistance to stress and its ability to establish quickly. An acceptable stock type selection represents a blueprint that, when grown and handled properly, will reliably produce seedlings of optimum size and satisfactory physiological quality. Size Seedling size is the most important morphological characteristic of a stock type. Stock type morphological specifications are the basis for selecting stock by field staff and grading stock in the nursery. Stock Type Development Table 3.
Morphological specifications vary by species.
Specifications for other species are available from Ministry of Forests Nursery and Seed Operations Branch. These specifications are reviewed and revised annually. These specifications are guidelines for licensees. The smaller number represents the specifications on stock lifted prior to September 15. The larger number applies after this date.