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Table 7 Correlation coefficients (r values) of cone, seed, pine nut, geographical, and climatic variables of the five P. pinea natural populations across Turkey

From: Effects of geoclimatic factors on the variability in Pinus pinea cone, seed, and seedling traits in Turkey native habitats

Morphometric Geographical data Climatic data
Traits Long. Lat. Alt. AR RJ P M Q PE ME S
CD 0.311 − 0.659 0.872 0.441 − 0.098 0.275 0.819 − 0.625 − 0.740 0.939* − 0.806
CL − 0.010 − 0.598 0.667 0.774 − 0.343 − 0.008 0.726 − 0.823 − 0.395 0.846 − 0.497
CW − 0.047 − 0.552 0.683 0.720 − 0.396 − 0.072 0.718 − 0.820 − 0.476 0.844 − 0.563
SN − 0.201 − 0.550 0.606 0.670 − 0.661 − 0.250 0.701 − 0.897* − 0.432 0.758 − 0.504
ES 0.236 0.653 − 0.328 − 0.471 0.846 0.236 − 0.599 0.822 0.073 − 0.447 0.134
SY − 0.022 − 0.609 0.730 0.545 − 0.518 − 0.081 0.772 − 0.819 − 0.598 0.837 − 0.661
SD 0.754 − 0.503 0.813 − 0.075 0.530 0.732 0.613 − 0.046 − 0.826 0.736 − 0.846
SL 0.100 − 0.585 0.771 0.595 − 0.272 0.065 0.759 − 0.736 − 0.610 0.889* − 0.686
1000-SW 0.519 − 0.564 0.866 0.209 0.218 0.484 0.723 − 0.351 − 0.816 0.866 − 0.860
PN − 0.254 − 0.638 0.492 0.582 − 0.848 − 0.288 0.691 − 0.923* − 0.280 0.629 − 0.345
PW − 0.396 − 0.339 0.395 0.889* − 0.612 − 0.412 0.497 − 0.878 − 0.155 0.623 − 0.248
PY − 0.295 − 0.613 0.417 0.560 − 0.884* − 0.323 0.641 − 0.903* − 0.200 0.554 − 0.262
  1. Long. longitude; Lat. latitude; Alt. altitude; AR annual rainfall (mm) in the third year prior to harvest time; RJ rainfall (mm) in June of third year prior to harvest time; P mean annual rainfall in mm; M the mean of the maximum of the hottest month in °C; Q Emberger humidity category; PE sum of rainfall in June, July, and August for the period 1987–2016; ME mean of the maximum temperature of June, July, and August; S summer drought index value. For other abbreviations, please see Table 2. * and ** stating significant differences at 0.05 and 0.01 levels, respectively
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