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Different cut positions (cp) (A) and development of the abscission zone (B–E). (A) The positions of the decapitating poinsettia cyathia (flowers) to induce controlled abscission. We have used cp2 in all experiments reported here. (B) Day 0 (control). (C) Day 5. (D) Day 6. (E) Day 7. Arrows indicate the AZs on the flower pedicels.
