Profile of radial growth and number of sequences. From Dave Fayle.

Profile of radial growth sequences. From Dave Fayle.

1/2 rate of NP in U2 trial. White spruce, 2+0, fertilization trial.

10-row transplanter in action. Transplanting. Black spruce, 2+1.

10-row transplanter using conventional seedbed stock. Black spruce, 2+1, transplanting seedlings.

11/2+11/2 transplants after their first growing season at the Irving nursery, n.b. the compact root system. White spruce, 2+1, transplants.

110-year-old natural black spruce. N.B. total lack of ground cover and regeneration. Beardmore

Drawing of the difference on seedlings root length

Graph on relative growth rate through time

Black spruce planted 1956 at 15 yrs. Butler Farm, Bouctouche, J.D. Irving. Person is Neils Krieberg.