Excess moisture was removed using a salad spinner. Untreated stem discs served as
control. Treated and untreated discs were sealed in Ziploc® sealable
polyethylene bags (18 cm 16 cm) and stored at 5 C for 21 days. Similarly, the stem discs were treated with 0.5 g/L trans-cinna- maldehyde solution (CD) at 15 C for 30 min (Martin~on et al., 2014), heatshock (HS) by immersing in 50 C water for 1.5 min (Murata