From: Phalaenopsis pollinia storage at sub-zero temperature and its pollen viability assessment
Storage weeks | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 4 | 8 | 16 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 88 | 96 | |
RT | +++a | ++ | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND |
4 °C | +++ | +++ | +++ | +++ | ++ | ++ | + | − | − | ND | ND | ND | ND | ND |
− 20 °C | +++ | +++ | ++ | +++ | +++ | +++ | ++ | + | ++ | + | + | + | − | + |
− 80 °C | +++ | +++ | ++ | ++ | ++ | ++ | ++ | + | + | + | + | + | + | + |