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Effect of Drought on Growth and Mortality of Actively Growing Norway Spruce Container Seedlings Planted in Summer

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Abstract:

Survival, root egress and height growth of 13-month-old actively growing Norway spruce (Picea abies (L.) Karst.) container seedlings exposed to preplanting drying treatments (0, 4, and 8 days) and postplanting drought periods (1, 2, 3, and 4 weeks) were studied in the field between 5 July and 18 August 1999. The mortality of seedlings increased and the height growth and root egress decreased throughout the postplanting drought period. Postplanting performance was also affected by preplanting drying treatments. The results indicate that no risk of excessive mortality and growth restrictions occurs when actively growing seedlings are planted in summer, provided that seedlings are well watered before planting and the drought period does not exceed 3 weeks.

Keywords: ABIES; EGRESS; GROWTH; HEIGHT; PICEA; PLANTING; ROOT; STRESS; SUMMER; SURVIVAL

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/028275802753742882

Publication date: June 1, 2002

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