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Fig. 4 | Annals of Forest Science

Fig. 4

From: The effects of provenance, climate, and chemical defense on the resistance of Pinus pinaster Aiton to Bursaphelenchus xylophilus (Steiner and Buhrer)

Fig. 4

Principal component analysis defined by one component and represented as a ranking of aridity climate conditions. ACIB, Atlantic coast of the Iberian Peninsula; CEIB, Central Iberian Peninsula; FCR, France-Catalonia region; MO, Morocco-Oria region; Cor, Corsica Island; SEIB, southeast the Iberian Peninsula; dashed black line represents the main survival trend (R2 = 0.37, p-value < 0.001)

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Annals of Forest Science

ISSN: 1297-966X