Answers are grounded in this paper and cite their sources.
Program finds improved tree varieties and techniques in the Christmas tree industry, suggesting better growth methods.
A dynamic research program is essential to a flourishing Christmas tree industry. There should be a constant search for better tree varieties, improved hybrids, greater understanding of the relation between tree growth and site, more practical cultural techniques for growing high-quality trees, and improved marketing procedures. If this is not done, the traditional evergreen Christmas tree may be replaced by a synthetic substitute.
No takes yet. Share an insight, caveat, or question.
Malcolm J. Williamson (1965) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: