. 2017 Apr 28;8:662. doi: 10.3389/fpls.2017.00662

Table 1.

Effect of watering treatments on stem-specific conductivity (K_S) measured on the Sperry apparatus and the percent functioning vessels measured via μCT (% functioning) after 10 h of darkness.

Hydraulic functioning	No water	Partially watered	Fully watered	Mid-day
Sperry apparatus (B73 only)
K_S internode (% of max)	35.4 (11.7)^bc∗	51.7 (10.9)^b∗	76.4 (19.6)^a	31.5 (12.9)^c
K_S internode (kg m^-1 s^-1 MPa^-1)	0.75 (0.25)^bc∗	1.09 (0.23)^b∗	1.62 (0.42)^a	0.67 (0.27)^c
K_S complete stem (kg m^-1 s^-1 MPa^-1)	0.064 (0.108)^a∗	0.26 (0.23)^a	0.29 (0.29)^a∗	0.082 (0.118)^a
μCT scanning
μCT, B73 (% functioning)	72.8 (8.7)^a	72.3 (4.9)^a	90.1 (9.9)^a	–
μCT, CML103 (% functioning)	77.7 (4.1)^b	89.3 (0.3)^a	95.8 (0.6)^a	–
μCT, combined (% functioning)	75.2 (6.3)^b	80.8 (10.2)^ab∗	92.9 (6.6)^a∗	–

‘Mid-day’ values were taken between the hours of 1200 and 1400 immediately after measuring and were not allowed a recovery period. Tukey mean separation (α = 0.05) is denoted with lowercase letters. Borderline significance (α = 0.10) is denoted with an ‘^∗’. Values in parentheses denote 1 SD. μCT results differed significantly between genotypes (P = 0.032).