Table 4.
Mean (± s.e.) rate of germination (number of days for 50 % germination) and total germination percentage of the six different Ambrosia artemisiifolia populations studied (30 plants each)
| Populations | Days to 50 % germination | Total germination (%) | r | P |
|---|---|---|---|---|
| Co | 11·8 (0·7)a | 15·6 (1·8)c | 0·56 | 0·001 |
| Lu | 6·9 (0·5)b | 56·2 (4·4)b | 0·61 | <0·001 |
| Lt | 3·6 (0·3)c | 64·3 (4·1)ab | 0·28 | 0·137 |
| Ch | 9·6 (0·6)a | 62·5 (2·9)b | 0·63 | <0·001 |
| Ra | 7·1 (0·6)b | 77·3 (2·0)a | 0·45 | 0·014 |
| Sp | 10·6 (0·8)a | 71·1 (2·3)ab | −0·15 | 0·419 |
Germination was calculated on sets of 100 achenes per plant. The results of Bonferroni's multiple comparison test (within columns) are indicated by different superscript letters where values differ significantly at P < 0·05. Pearson's correlations (r) were calculated between total germination and mean achene mass within each population.