Fig. 7.

Soil water potential at 20 and 50 cm depth measured from 22 May to 8 August in 2018. Measurements are for sandy loam (A) and clay loam (B) soils and experimental plots planted with the barley wild type (WT; ‘Optic’) and its hairless mutant (NRH). Data are the mean of four replicates, with error bars representing the s.e. The dotted area represents the tensiometers limit (less than –70 kPa). Also presented is the daily precipitation recorded at the experimental sites between 15 May and 13 August in 2017 and 2018.