Inventors:
William Wenkert - Red Hook NY
International Classification:
G01N 1508
G01N 33483
Abstract:
To indicate stomatal aperture in plant leaves, this instrument measures the permeability to air flow across the leaf. Air entrance and exit chambers are temporarily and non-destructively sealed on opposite sides of the leaf. The entrance chamber is pressurized while the exit chamber remains sealed as an initial test for any leakage. The exit chamber is then opened to the atmosphere and the time required for a specific volume of air to move across the leaf is measured.