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Fig. 7

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Relation entre la tension hydrique du sol dans l'horizon 30–60 cm et la concentration en sucre du nectar (points bleus : valeurs mesurées ; points rouges : valeurs du modèle Y = 72,47 − 0,32X ; r2 adjusted = 0,94, P < 2.10−16).

Linear correlation between the water deficit of the soil at 30–60 cm depth and the sugar concentration of the nectar (blue dots: measured values; red dots: values from the model).

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