INHIBITION OF SENESCENCE IN CUT CARNATION FLOWERS CAUSED BY ULTRA-HIGH CONCENTRATIONS OF 2,4-D

Production of both CO₂ and ethylene and petal senescence were accelerated by uptake of 4, 20, and 100 mg 2, 4-D/1, compared to water controls. 500 mg 2, 4-D/1 suppressed CO₂ and ethylene evolution and retarded senescence.
Although 500 mg 2, 4-D/1 protected against senescence of petals, stem and gynaecium tissues were adversely affected by the same concentration.

Symposium on Growth Regulators in Floriculture

J.N. Sacalis, R. Nichols

https://doi.org/10.17660/ActaHortic.1979.91.15