Table 4 Media used for the Polyethylene glycol 4000 (PEG4000) concentration test
From: Screening and optimisation of in vitro pollen germination medium for sweetpotato (Ipomoea batatas)
Treatment | pH | Sucrose (g/L) | PEG4000 (g/L) | Boric acid (mg/L) | Calcium nitrate (mg/L) | Germination rate (%) |
|---|---|---|---|---|---|---|
PEG4000 medium 1 | 6.0 | 50 | 0 | 100 | 200 | 46.4 ± 7.8 |
PEG4000 medium 2 | 6.0 | 50 | 50 | 100 | 200 | 73.5 ± 5.0* |
PEG4000 medium 3 | 6.0 | 50 | 100 | 100 | 200 | 62.2 ± 7.8* |
PEG4000 medium 4 | 6.0 | 50 | 150 | 100 | 200 | 34.1 ± 12.8 |
PEG4000 medium 5 | 6.0 | 50 | 200 | 100 | 200 | 12.7 ± 2.1 |
PEG4000 medium 6 | 6.0 | 50 | 250 | 100 | 200 | 11.8 ± 3.0 |
PEG4000 medium 7 | 6.0 | 50 | 300 | 100 | 200 | 11.2 ± 2.8 |