Table 6 Root dry mass to shoot dry mass ratio and total dry mass together with sensitivity index after 90 days of growth of N. reynaudiana in spatially heterogeneous and homogeneous P supply (mean ± SE). For each level of patch strength, means followed by different letter across columns are statistically different

0 + 0/30

Large

0.15 ± 0.03b

14.99 ± 0.45d

1.75 ± 0.08b

Medium

0.15 ± 0.02b

13.45 ± 0.21c

1.57 ± 0.13b

Small

0.13 ± 0.01ab

6.37 ± 0.11a

0.74 ± 0.04a

Homog.

0.09 ± 0.01a

8.59 ± 0.66b

0 + 7.5/30

Large

0.10 ± 0.01a

15.94 ± 1.19b

1.40 ± 0.15b

Medium

0.09 ± 0.004a

14.72 ± 0.52b

1.30 ± 0.08ab

Small

0.09 ± 0.02a

12.95 ± 0.46a

1.14 ± 0.06a

Homog.

0.10 ± 0.01a

11.37 ± 0.47a

7.5 + 0/30

Large

0.11 ± 0.01b

11.18 ± 0.63c

1.16 ± 0.22b

Medium

0.10 ± 0.004ab

8.87 ± 0.36b

0.92 ± 0.18ab

Small

0.09 ± 0.01ab

6.64 ± 0.49a

0.68 ± 0.10a

Homog.

0.09 ± 0.001a

9.84 ± 1.61bc