Supplementary Figures Low oxygen storage improves tomato postharvest cold tolerance, especially for tomatoes cultivated with additional far-red LED light

S1: Spectra of the PhysioSpec Greenhouse lamp (A) with white LED light and additional far-red light and the spectra of the PhysioSpec Greenhouse lamp (B) with only white LED light. Total light intensity in µmol m^–2 s^–1. Light intensity far-red light (A) = 12,6 µmol m^–2 s^–1. Light intensity far-red light (B) = 4.3 µmol m^–2 s^–1. PPF = photonsynthetic photon flux. YPF = yield photon flux. PPE = photosynthetic photon efficacy. R (625 – 700 nm) /FR (700 – 820 nm) = ratio between red and far red light.
S2:

Weight loss percentage of MG (A) and R (B) tomatoes during cold storage at 2 °C (blue area) and subsequent shelf-life at 20 °C (white area). Orange, green, red, and purple lines and symbols indicate 1, 5, and 21 kPa O₂ (low oxygen control) applied during cold storage at 2 °C , and 21 kPa O₂ at 12 °C (temperature control ), respectively. The average weight loss percentage with indicated standard error is shown for two replicates of four tomatoes (N=2)
S3:Hydrogen peroxide (H₂O₂) production of MG tomatoes cultivated under white LED light (WL) without far red lighting (A) or with additional far red lighting during cultivation (B) during cold storage (blue area) at 2 °C and subsequent shelf-life at 20 °C (white area). Orange, green, red, and purple lines and symbols indicate 1 kPa, 5 kPa, 21 kPa O₂ (low oxygen control) applied during storage at 2 °C , and 21 kPa O₂ at 12 °C (temperature control ), respectively. The average H₂O₂ production with indicated standard error is shown for two replicates of four tomatoes (N=2); (repeated measure over times). LSD values (P < 0.05) are indicated per panel.