Comparison of Three Cold Storage Methods for Norway Spruce (Picea abies Karst) Bare Root Seedlings. Consequences on Metabolic Activity of Ectomycorrhizae Assessed by Radiorespirometry

1991

S. 489-495

4 Abb., 50 Lit. Ang.

Unselbständiges Werk

200041379

Bare root forest tree seedlings are very sensitive to environmental factors, including cold storage. The metabolic activity of 2 types of ectomycorrhizae of Norway spruce seedlings, after cold storage for 2 weeks under 3 experimental conditions, was compared using radiorespirometry. The mycorrhizal type BOO had a lower metabolic activity before treatment and, was more resistant to cold storage than the A12 type. These observations were in general agreement with previously published field experiments, where BOO became dominant and A12 was suppressed after cold storage and transplanting. Ectomycorrhizal fungi could be selected according to these criteria for controlled nursery inocculation. Storage at 4 C in polyethylene bags did not affect the metabolic activity of ectomycorrhizae, unlike other storage conditions.