Abstract An overwinter refrigerated storage experiment with 3-0 white spruce, white pine and red pine, was carried out at the Orono Nursery, Ontario, during the winter of 1968-69. Storage in frozen polybags gave the most promising results in all species–almost as good as those from freshly lifted stock in red pine and better than those from fresh planting in white spruce and white pine. Success was poor with the cold-tray method in all species, with the cold bale-in-polybag method in red and white pine, and with the frozen bale in white spruce. The stored stock from the better treatments withstood handling and holding better than freshly lifted trees when held in bags for several days.
Mullin et al. (Thu,) studied this question.
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