Differentiation of tracheids in annual rings of Pinus sylvestris-variability in forest populations

Bogacinski, B.; Zajaczkowski, S.; Wodzicki, T. J.

In further studies in stands already described at Rogow, Poland, data on the number of cells in the latewood zone showed a range of 5-23 with variations relative to age/diameter/site type/stand density being rather complex. Maturation period for latewood cells was 45-50 days and showed no significant difference with the variables studied. Complex relations between variables and tracheid diameter and wall thickness were evident.