CS-134 IN HEATHER SEED PLANTS GROWN WITH AND WITHOUT MYCORRHIZA

Experiments were carried out to determine differences between mycorrhi zed and non-mycorrhized seen plants of heather, Calluna vulgaris(L)Hul l, as regards the uptake of Cs-134. Most treatments heather with mycor rhiza had a significantly higher transfer of Cs-134 to the shoots than heather without mycorrhiza. As an average rite concentration of Cs-13 4 was 18 % higher in the mycorrhized plants than in the non-mycorrhize d. Application of 10 kg K/ha. reduced the concentration of Cs-134 in s hoots of heather by 49 % as an average. Because of improved growth in the potassium fertilized pots the reduction viewed on the basis of the area was only 33 %. Nitrogen application does not significantly influ ence the concentration of Cs-134 in shoots of heather regardless of my corrhizal status. (C) 1998 Elsevier Science Ltd. All rights reserved.