Research Article

Effect of Ecotype and Latitude on Growth, Frost Hardiness, and Oxidative Stress of South to North Transplanted Scots Pine Seedlings

Table 1

Summary of comparisons between origin of the seedlings, and between the seasons of sampling in each analysed biological variable during the studied three-year period (1998–2000). The asterisks denote for statistically significant difference at: * , ** , and *** . N.S.: nonsignificant.

Comparison between seasonsComparison between origin
Spring versusAutumn64°N versus66°N

Variable
Shoot elongation **
TN (%) *** ***
Frost hardiness * ***
Lipid peroxidation *** *
Glutathione reductase *** N.S.
Protein oxidation * N.S.