Table 1.
Germination responses of freshly harvested and after-ripened seed lots of Stackhousia tryonii
| Seed lot |
Approximate age (years) |
External colour of seeds |
Moisture content (%) |
Dormancy (%) |
Germination (%) |
|---|---|---|---|---|---|
| Dec 1996 | 4·5 | Dark brown | 6·0 ± 0·2 | 72 | 28·3 ± 2·4 |
| Feb 2000 | 1·5 | Brown | 5·9 ± 0·3 | 62 | 38·3 ± 4·6 |
| Aug 2000 | 1 | Green-yellow | 6·3 ± 0·4 | 90 | 10 ± 0·0 |
| Aug 2001 | Freshly harvested | Green | 7·4 ± 0·2 | 100 | 0 |
Moisture content and germination values shown are means ± s.e. Seeds were germinated under light [white fluorescent tubes with mean photon flux density (400–700 nm) of 40 µmol−2 m−1 s−1 at seed level]. The ungerminated seeds in all seed lots were viable (stained pink with tetrazolium).