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Physiological parameters (semel). Net photosynthesis (PN) and stomatal conductance (gs) of Vitis vinifera with three different soil management treatments. Measurements were conducted from May to September (2021 and 2022, (A)–(D)). Data (mean ± SE, n = 10) were subjected to one-way ANOVA. The bars represent the standard deviation. Different letters indicate significant differences between Zeowine, Zeolite, and Compost (LSD test, p ≤ 0.05).
