Sowing Depth, Media, and Seed Size Interact To Influence Emergence of Three Pine Species'
Seedling emergence in nursery production is commonly affected by many factors. The effect of sowing depth and growing media on emergence of pine species with different sized seed—Pinus greggii (P. greggii), Pinus brutia var. eldarica (P. brutia), and Pinus cembroides (P. cembroides)—was studied in a greenhouse experiment. Both emergence rate and percentage were reduced significantly at greater depths for all species. The optimum sowing depth for seeds of P. brutia (92 percent emergence), and P. cembroides (82 percent emergence) was at once or twice the thickness of the seed while the smallest seeded species, P. greggii (87 percent emergence) germinated best at one times the thickness of the seed.
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Author(s): Arnulfo Aldrete, John G. Mexal
Publication: Tree Planters' Notes - Volumes 51, Number 1 (2005)
Volume: 51
Number: 1
