Ethylene production was monitored in different sets of
experiments every alternate day. At the time of harvest GS
apples did not produce any detectable ethylene (Fig. 1). The
untreated fruit connected to air supply started producing detectable
detectable
ethylene at day 5 at 18 °C (0.63±0.06 nl C2H4/g/h), day
12 at 7 °C (0.515±0.08 nl C2H4/g/h) and day 17 at 1 °C (0.67±
0.05 nl C2H4/g/h). Fruits connected to 1.5% O2 supply started
producing ethylene after 37 days (0.178±0.01 nl C2H4/g/h) at
18 °C, 60 days (0.19±0.02 nl C2H4/g/h) at 7 °C and 70 days
(0.2±0.01 nl C2H4/g/h) at 1 °C respectively. 1-MCP treated
fruits started producing detectable ethylene after 73, and
104 days at 18 °C and 7 °C respectively. 1-MCP treated fruits
stored at 1 °C did not produce detectable ethylene even
196 days post harvest.