Table I.
Dose-dependent effects of BFA on P. meyeri pollen germination and pollen tube growth
The germinated pollen grains were counted after 36-h culture, and only those pollen tubes with their length longer than the diameter of pollen grain were considered germinated.
| BFA
|
Germination Rate
|
Pollen Tube Length
|
|||||
|---|---|---|---|---|---|---|---|
| 6 h | 12 h | 18 h | 24 h | 30 h | 36 h | ||
| μg mL−1 | % | μm | |||||
| 0 | 84.5 ± 3.4 | 45.0 ± 1.8 | 91.5 ± 3.6 | 187.7 ± 5.6 | 262.5 ± 8.4 | 300.9 ± 9.1 | 315.9 ± 9.7 |
| 1 | 83.0 ± 3.3 | 43.0 ± 1.9 | 89.8 ± 4.5 | 185.9 ± 5.5 | 250.2 ± 7.9 | 265.7 ± 9.0 | 265.2 ± 9.5 |
| 3 | 68.1 ± 2.7 | 39.5 ± 1.6 | 85.3 ± 4.3 | 151.3 ± 5.5 | 175.0 ± 7.3 | 169.2 ± 8.4 | 165.1 ± 8.2 |
| 5 | 48.3 ± 1.9 | 39.2 ± 1.8 | 78.5 ± 3.8 | 80.5 ± 3.6 | 82.3 ± 4.0 | 83.0 ± 4.1 | 84.8 ± 4.2 |
| 8 | 8.2 ± 0.4 | 38.1 ± 1.8 | 39.5 ± 1.8 | 45.2 ± 2.2 | 43.7 ± 2.1 | 49.0 ± 2.4 | 48.0 ± 2.3 |