Table 2.
UNIANOVA (general linear model, univariate) results (F-values, followed by P-values in brackets) for the effects of nitrogen (N), phosphorus (P) and potassium (K) on dry weight (DW) per plant, root:shoot (R:S) ratio, number of haustoria (H), number of presumably functional haustoria (PFH) per gram dry root, fine root/total root (FR/TR) ratio and shoot concentrations of N, P K, calcium (Ca) and magnesium (Mg) of Pedicularis rex and P. tricolor
| Nutrient | Pedicularis | Shoot DW | Root DW | R:S ratio | No. of H | No. of PFH | FR/TR ratio | N concentration | P concentration | K concentration | Ca concentration | Mg conc. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | P. rex | 28·569 (<0·001) | 17·377 (<0·001) | 2·949 (0·068) | 4·359 (0·022) | 0·389 (0·681) | 0·075 (0·928) | 9·591 (0·001) | 4·061 (0·028) | 11·993 (<0·001) | 0·373 (0·692) | 0·178 (0·838) |
| P. tricolor | 9·245 (0·001) | 5·515 (0·009) | 1·461 (0·249) | 1·142 (0·333) | 0·726 (0·492) | 2·887 (0·072) | 4·869 (0·015) | 1·068 (0·357) | 1·815 (0·181) | 0·872 (0·429) | 1·108 (0·344) | |
| P | P. rex | 10·839 (<0·001) | 1·616 (0·216) | 0·914 (0·412) | 1·260 (0·299) | 0·369 (0·695) | 2·609 (0·091) | 8·270 (0·001) | 20·381 (<0·001) | 7·621 (0·002) | 3·767 (0·035) | 1·321 (0·282) |
| P. tricolor | 31·102 (<0·001) | 17·323 (<0·001) | 8·571 (0·001) | 3·077 (0·061) | 0·489 (0·618) | 33·680 (<0·001) | 46·681 (<0·001) | 36·639 (<0·001) | 8·593 (0·001) | 2·456 (0·103) | 0·059 (0·942) | |
| K | P. rex | 12·681 (<0·001) | 1·319 (0·283) | 3·643 (0·039) | 4·250 (0·024) | 2·390 (0·109) | 0·838 (0·443) | 3·386 (0·048) | 2·412 (0·107) | 3·321 (0·050) | 2·128 (0·137) | 2·459 (0·103) |
| P. tricolor | 1·883 (0·170) | 0·438 (0·649) | 0·862 (0·433) | 0·951 (0·398) | 0·057 (0·945) | 2·379 (0·110) | 0·175 (0·840) | 6·192 (0·006) | 7·552 (0·002) | 4·685 (0·017) | 4·734 (0·017) |
Significant values are highlighted in bold.