Fig. 1. Leaf water potential (
l), leaf turgor potential (p), and leaf osmotic potential at full turgor (
100%) measured at midday on marguerite (A. coronopifolium) and dwarf sea-lavender (L. pectinatum) plants under control, S1, S2, and S3 treatments, at the end of the application period (t1) and 15 d later (t2). Each histogram represents the mean of five plants. Vertical bars on each histogram represent the standard error.