Physiology
Many nurseries are troubled with the increasing T/R ratio with increasing age of seedlings. The problem is most severe in the northern nurseries where 2-0 pines are not quite big enough and the 3-0 stock gets out of balance.
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Author(s): Ken Hovey
Publication: National Nursery Proceedings - 1966
Event:
Region 7 Forest Tree Nurserymen's Conference
1966 - Saratoga Springs, New York