Effects Of Container Density On Growth And Cold Hardiness Of Douglas-Fir Seedlings
Douglas-fir [Pseudotsuga menziesii (Mirb) Franco] seedlings were grown in 2.7 cubic inch plastic containers for five months at densities of 25, 50, 75 and 100 ft-2 in a greenhouse. Low densities produced shorter, thicker-stemmed plants with greater shoot and root dry weights, lower shoot-root ratios, and a greater degree of cold hardiness.
Download this file:

Details
Author(s): Yasuomi Tanaka, Roger Timmis
Publication: National Nursery Proceedings - 1974
Event:
Proceedings of the North American Containerized Forest Tree Seedling Symposium
1974 - Denver, CO