Table 4 Stem diameter variations by circadian cycle phases for fertilized and control stone pine trees expressed as mm × 100

0.12 ± 0.05 c

0.11 ± 0.05 c

5.66 ± 0.69 b

1.35 ± 1.40 c

6.12 ± 0.69 b

1.96 ± 1.42 c

0.08 ± 0.05 c

0.17 ± 0.04 c

8.56 ± 0.65 a

3.77 ± 0.54 c

9.20 ± 0.66 a

4.18 ± 0.54 bc

0.35 ± 0.05 a

0.30 ± 0.04 ab

3.37 ± 0.6 c

2.07 ± 0.65 c

4.01 ± 0.61 bc

2.54 ± 0.66 c

0.14 ± 0.05 c

0.20 ± 0.04 bc

1.38 ± 1.63 c

2.12 ± 1.63 c

1.53 ± 1.64 c

2.76 ± 1.64 bc