3.3 | Tree performance
Relationship between the mean first phenotypic PC values and the stem
basal area of both living and dead trees in individual plantation rows
showed the opposite patterns between the inland and coastal sites
(Figure 5), suggesting local adaptation. While the tree size was
generally larger in the inland site than in the coastal site, the size
of Qc trees was extremely reduced in the coastal site, but the
size of Qd trees was similar in both sites (Figure 5). The size
of Qa trees was smaller than that of Qc trees (P =
0.004) but was not significantly different from that of Qd trees
(P = 0.096) in the inland site, whereas the size of Qatrees was larger than that of Qc trees (P = 0.004) but
was not significantly different from that of Qd trees (P= 0.064) in the coastal site (Data S1). These results suggested thatQd -like phenotypes of Qa trees in both taxon-specific and
habitat-specific traits were adaptive to coastal environment.