Inoculation of willows (Salix spp.) with ectomycorrhizal fungi on mined boreal peatland |
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| Authors: | M A J Loree I Lumme M Niemi T Tormala |
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| Institution: | (1) Native Plants Inc., 84108 Salt Lake City, UT, USA;(2) Research Institute of Northern Finland, University of Oulu, SF-90570 Oulu, Finland;(3) Department of Biology, Espoo Research Centre, Kemira Oy, P.O. Box 44, SF-02271 Espoo, Finland |
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| Abstract: | Inoculation with ectomycorrhizal fungi was explored as a means to improve productivity of experimental short-rotation plantations of the willowsSalix viminalis andSalix dasyclados for biomass production on surface-mined peatlands in northern Finland. Both willow species formed ectomycorrhizas withAmanita spp.,Cortinarius purpurascens, Entoloma nidorosum, otherEntoloma spp.,Hebeloma crustuliniforme, H. pusillum, Laccaria bicolor, andPaxillus involutus in greenhouse experiments.Field trials on a mined peatland site revealed (after one growing season) statistically significant growth stimulation after inoculation due to mycorrhiza formation in both willow species: plants inoculated withEntoloma were sometimes twice as large as control plants. However, such effects were observed only in plots receiving normal phosphate fertilization as opposed to low phosphate application, and were not consistent from season to season. With the inoculum of other species (Cortinarius, Hebeloma andPaxillus) some evidence of growth enhancement was found in the field, but these results were sometimes attributable to non-symbiotic effects of inoculation. |
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| Keywords: | energy forestry mycorrhizae Salix viminalis Salix dasyclados short-rotation forestry |
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