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New Zealand Journal of Forestry (1979) 24(2): 278–287
©New Zealand Institute of Forestry

Research article
Packaging and cool storage of tree seedlings

I.J. McCracken

Modern forest nursery and establishment operations demand a single package for seedlings from lifting to planting. Once in a package, cool storage is essential to prevent deterioration in seedling quality through heat build-up and excessive rates of respiration. Packaging in kraft paper bags with a polythene lining 8—10 urn thick provides a package which restricts moisture loss but allows sufficient gas exchange at low temperatures to maintain healthy seedlings. With the moisture barrier built in to the package, cool store construction is simplified. Maximum duration of cool storage for seedlings depends on species characteristics of foliage and winter dormancy
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