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. 2022 Jun 6;13:866053. doi: 10.3389/fpls.2022.866053

FIGURE 2.

FIGURE 2

Average values of gas exchange parameters in a Tempranillo vineyard grafted onto M1, M4, and 1103-Paulsen (1P) rootstocks subjected to different water quality (C, control and S, saline irrigation) on DOY 233 of 2019 in Valencia, Spain. AN, net photosynthesis; gs, stomatal conductance; WUEi, intrinsic water use efficiency. Data are averages and standard errors of 18 and 12 measurements per water quality and rootstock, respectively. Within each parameter, asterisks or letters denote significant differences between water quality treatments or rootstocks at p < 0.05 (Duncan test), respectively.