Title: Run for Cover! What's Covering Your Greenhouse and How Is It Affecting Seedling Growth?
Author: Parks, Noreen; Dumroese, R. Kasten; Marshall, John D.;
Source: In: Riley, L.E.; Dumroese, R.K.; Landis, T.D., tech. coords. 2006. National Proceedings: Forest and Conservation Nursery Associations - 2005. Proc. RMRS-P-43. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 44-50
Publication Series: Proceedings (P)
Description: Analysis of seedling growth characteristics between two greenhouse cover types, old fiberglass and new polycarbonate, shows significant differences in height and sturdiness coefficients in ponderosa pine (Pinus ponderosa) seedlings. Three rates of nitrogen (N) application (20, 40, and 60 mg) indicate that seedling growth will increase under both cover types, but may cause a reduction in seedling quality attributes including shoot-to-root ratio and seedling sturdiness. Under the new polycarbonate cover type, the mid and high rates of N fertilizer application showed no significant gains in seedling growth. Significant differences in germination were also detected between the two cover types favoring the old fiberglass material. When considering replacing a greenhouse cover with a new material, it is important to consider alterations in the seedling growth environment and make the appropriate cultural adjustments to ensure high seedling quality.
Keywords: greenhouse cover, greenhouse glazing, light, seedling growth, Pinus ponderosa
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)
XML: View XML
Pinto, Jeremy R.; Dumroese, R. Kasten; Marshall, John D. 2006. Run for cover! What''s covering your greenhouse and how is it affecting seedling growth? In: Riley, L.E.; Dumroese, R.K.; Landis, T.D., tech. coords. 2006. National Proceedings: Forest and Conservation Nursery Associations - 2005. Proc. RMRS-P-43. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 44-50
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility