Mycorrhizal and nonmycorrhizal Douglas fir grown in hydroculture

During the last decades the conditions of European forests
have declined due to the influence of so-called acid rain.
Vitality of trees has decreased as well as frequency and
species richness of the corresponding rnycorrhiza. Various soil factors such as N (NH4+ and No3-), Al and nutrient concentration are thought to contribute to the
decline of tree and ectomycorrhiza vitality. The aim of the
present investigation was to study the effects of the above
mentioned factors on Douglas fir (Pseudotsuga menziesii
[Mirb. ] Franco) mycorrhizal or nonmycorrhizal with Laccaria
bicolor. The experiments were performed in hydroculture under controlled conditions in a climate chamber. ...

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Summary

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