For determining the pressure exerted by the sap flowing from a stem stump. Manometer graduated 0 to 200 x 1 mm, for attachment by means of rubber tube or tape to the cut stem of a plant growing vigorously in wet soil.
For investigating transpiration. Measures the uptake of water by a cut plant shoot. The cut shoot may be replaced by a porous pot filled with water which enables measurement of the rate of evaporation from a moist surface, thus giving indication of relative humidity. Comprises a capillary tube wi...
A reservoir with 3 hole stopper for holding a graduated capillary tube 390 mm long, a short length of 10 mm dia glass tube to hold plant shoot and a funnel of 25 ml with a stopcock.