Response of Picea Abies (L.) Karst. Provenances to Sulphur Dioxide and Aluminum: A Pilot Study

Dordrecht

1992

S. 227-232

4 Lit. Ang.

Bandaufführung

8814S

83802

Seedlings of six Picea abies provenances were exposed to Al, SO2 and Al+SO2 for 12 weeks. A molaric Ca/Al ratio of 0.05 was chosen by using 1.68 mM Al. On the average, concentration of SO2 was 335 Myg m-3. Shoot and root growth were measured and needle discoloration was scored for different pollution regimes. Plant response to different environmental stresses differed significantly among the provenances used and showed marked provenance x treatment interactions. It is noteworthy that the high intraspecific variation of the traits investigated could cause misleading conclusions in nongenetic studies if inappropriate plant material is employed.