The exact science of tree sap transport has puzzled plant physiologists for many years. Sap's migration throughout tree trunks and branches is linked heavily to transpiration, the movement and ...

A device that looks like a hip flask is giving trees a voice. The sap flow meter, made by a company in northern NSW and used by scientists around the world, is harnessing trees as environmental ...

IT has been assumed by those who have used a pulse of heat as an indicator to measure the rate of flow of sap in trees 1 that the speed of the sap is identical with that of the heat pulse.

1. The source of pressure for the bleeding of trees in spring seems to be localized in different portions of the plant in different species. 2. Trees may be roughly classified into two groups in this ...