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Relationships between frost hardiness,root growth potential,and photosynthesis of nursery-grown white spruce seedlings |
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| Authors: | Sylvie Carles Mohammed S. Lamhamedi Debra C. Stowe Pierre Y. Bernier Linda Veilleux Hank A. Margolis |
| Affiliation: | 1.Centre d’étude de la forêt (CEF), Faculté de foresterie, de géographie et de géomatique, Pavillon Abitibi Price,Université Laval,Québec,Canada;2.Direction de la Recherche Forestière, Forêt Québec, ministère des Ressources naturelles et de la Faune,Québec,Canada;3.Natural Resources Canada, Canadian Forest Service,Québec,Canada |
| Abstract: | • ContextRoot growth is a characteristic to which nursery personnel is particularly attentive. The increase in root growth of white spruce seedlings in the autumn relies on the current season’s photosynthates. Needle hardening or a decrease in the mass of photosynthetically active foliage as a result of early frost may negatively affect the seedling’s photosynthetic capacity and its ability to fuel root growth. |
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