METHOD AND APPARATUS FOR MONITORING STOMATAL APERTURE

PROBLEM TO BE SOLVED: To provide a method and apparatus for monitoring a stomatal aperture, accurately grasping the water stress condition of a plant with an easy means. SOLUTION: This method for monitoring a stomatal aperture includes arranging each a wet surface imitation leaf 1 getting wet in water and a dried imitation leaf 2 evaporating completely no water in the vicinity of a raw leaf 110 of a plant 100, measuring each leaf temperature of the raw leaf 110, the wet surface imitation leaf 1, and the dried imitation leaf 2, and obtaining a stomatal aperture of the raw leaf 110 using each of the measured leaf temperatures. Since each leaf temperature of the raw leaf, the wet surface imitation leaf, and the dried imitation leaf is measured, it is possible to exclude environmental factors based on the leaf temperatures, and accurately grasp the relative value of the stomatal aperture by an easy means. COPYRIGHT: (C)2010,JPO&INPIT