• Exogenous PSKα application delays broccoli florets yellowing during cold storage. Lower MDA accumulation represents preserving membrane integrity. Promoting ROS scavenging systems contributes to lower H 2 O accumulation. Suppressing PLD and LOX expression is accompanying by triggering HSP70 HSP90 expression. Triggering IPT suppressing CKO higher cytokinin The of limits the economic nutritiona...