Fig. 3.

Ethylene emission by dormant (D) and non-dormant (ND) axes isolated from control or cyanide-treated sunflower embryos imbibed for 24 h at 10 °C on water. CN (1 mM) was applied during the first 3 h of imbibition. Ethylene measurements were performed after 5 h incubation at 20 °C of axes excised from embryos in the absence (a) or presence (b) of ACC 1 mM. Means of five replicates ±SD.