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

Figure 4

Annual shoot elongation of the Scots pine seedlings (mean±SE, 𝑛=20, except for 2000 𝑛=20) in (a) 1998, (b) 1999 and (c) 2000. Different letters indicate difference at 𝑃<.05.

(a)

(b)

(c)