Temporal changes in the activity of cellulase (CEL), polygalacturonase (PG) and ACC in AZ treated with water (Control), thidiazuron (TDZ) and coronatine (COR).

<p>Different tissues from Control, TDZ or COR treated plants for 5: leaf; P: petiole; AZ: leaf abscission zone; B: boll crust. Each value represents the mean ± SE of three replicates. Bars with the same letters are not significantly different.