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PCIB, NPA, and the distance at which plants were decapitated above node 5 had no effect on early bud growth after decapitation. Illustrated are the effects of 1 mm of either NPA or PCIB on the node 5 axillary bud outgrowth in pea plants. A, The position is shown at which the plants were decapitated, 1 cm (low) or 10 cm (high) above node 5. B and C, Bud growth responses are shown to 2 μL of treatments to the node 5 bud, including 1 mm PCIB (B) and 1 mm NPA (C).
