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Replicates of array at each treatment.
| Treatments | 97 kPa | 50 kPa | 25 kPa | 50 kPa/NormOx | 25 kPa/NormOx | 97 kPa/HypOx |
|---|---|---|---|---|---|---|
| Normal pressure | Low atmospheric pressure Total pressures (pTOT) | Hypobaria with normal oxygen composition (normoxia) | Hypoxia with normal pressure | |||
| Ambient at Guelph, ON | pO2 = 10 kPa | pO2 = 5 kPa | pTOT 50 kPa −pO2 = 21 kPa | pTOT 25 kPa −pO2 = 21 kPa | pTOT 97 kPa −pO2 = 5 kPa | |
| 10 day old Roots | 3 | 3 | 3 | 2 | 1 | 3 |
| 10 day old Shoots | 3 | 3 | 3 | 4 | 3 | 2 |
| 5 day old Roots | 3 | 3 | − | 3 | − | − |
