| Abstract: | Hydraulic shock waves were introduced into plants by pruning.These shock waves were monitored by a sap flux meter attachedto the plant at some distance from the excision. The measuredshock waves occurred a short time after pruning. An electricalanalogy is proposed to explain the time lags. The analogy suggestedthat, in plants undergoing auto-oscillatory behaviour, thereshould be a time lag in the transmission of oscillations insap flux along a stem. A plant undergoing auto-oscillatory watermetabolism showed a time lag of this type. |
