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reclamation, jack pine, seedling characteristics, outplanting, aspect, hydrogel, drought

Goeppel, Alexander E

Supervisor and department: Landhäusser, Simon Renewable Resources

Examining committee member and department: Zwiazek, Janusz Renewable Resources Dyck, Miles Renewable Resources

Department: Department of Renewable Resources

Specialization: Forest Biology and Management

Date accepted: 2014-05-29T14:46:13Z

Graduation date: 2014-11

Degree: Master of Science

Degree level: Master's

Abstract: This thesis explores the influence of non-structural carbohydrates NSC, seedling size, and root:shoot ratio RSR on jack pine Pinus banksiana Lamb. seedling performance under different drought intensities in a growth chamber and after outplanting on a reclamation site. NSC content, size, and RSR are seedling characteristics which could improve drought tolerance of jack pine and thus outplanting success. During seedling production, characteristics were altered by growing seedlings in a greenhouse, incorporating a period of outdoor growth, and staggering germination. Generally, smaller outside grown seedlings with initially high RSR, allocated more growth to aboveground organs whereas large greenhouse grown seedlings demonstrated greater growth allocated to roots. In the growth chamber, large seedlings exhibited less water stress under severe drought. On the reclamation site, seedlings were outplanted on different aspects and seedlings on the warmer and drier south-facing aspects had increased needle production and stomatal conductance.

Language: English

DOI: doi:10.7939-R3QJ78490

Rights: Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.

Autor: Goeppel, Alexander E

Fuente: https://era.library.ualberta.ca/


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