Sorting Loblolly Pine Orchard Seeds by Size for Containerized Seedling Production
Abstract:Sorting of a bulked loblolly pine (Pinus taeda L.) orchard seed lot into four different size classes did not result in seedlings from any one class having a consistent growth advantage. Larger seeds displayed the lowest total germination but yielded as large or larger containerized seedlings 12 weeks after sowing. Seed size had no effect on field survival. Total height and height growth over a three-year period in the field were not consistently affected by seed size, although large seeds tended to yield slower-growing seedlings. Uniformity in sowing and subsequent uniformity in growing space seems to be the major justification for sizing loblolly seeds for containerized seedling operations.
Document Type: Journal Article
Affiliations: Production Technologist (this work conducted while holding position of seed scientist), Weyerhaeuser Company, Hot Springs, Arkansas
Publication date: May 1, 1982
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