Skip to main content
. 2015 Mar 4;66(8):2315–2324. doi: 10.1093/jxb/erv029

Table 3.

The ability of different models to predict leaf xylem ABA concentration ([X-ABA]leaf) of fixed and alternated PRD tomato plants

[X-ABA]leaf was measured in detached leaves. For each plant, the difference between model (equations 1–3) and measurement is calculated as the ratio [X-ABA]model/[X-ABA]leaf. Values above or below 1 indicates that the model overestimates or underestimates [X-ABA]leaf, respectively. Three different models (equations 1–3) are indicated: see the Materials and methods. The numbers in the brackets are the n values.

Irrigation treatment Mean (equation 1) Leaf water potential (equation 2) Fractional (equation 3) P-value
PRD-Fixed 1.75aA (12) 1.54bAB (12) 1.10B (12) 0.030
PRD-Alternated 2 h 1.12b (12) 1.50b (12) 1.03 (12) 0.253
PRD-Alternated 6 h 1.65aA (12) 2.44aA (12) 1.31B (12) 0.007
P-value 0.012 0.044 0.186
Combined data 1.51A (36) 1.83A (36) 1.15B (36) 0.001

Within each row (superscript capital letters) different letters indicate significant differences between means at P ≤0.05 by Duncan’s test.

Within each column (subscript lowercase letters), different letters indicate significant differences between means at P ≤0.05 by Duncan’s test.