Determinations of the Heat Transfer Coefficient of a Leaf

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Abstract
Methods are reviewed for determining experimentally the coefficient (h) relating the temperature difference and the heat flux between a leaf and the ambient air. An approximate equation applying to several thin-leaved plants is [image] where t-1/2 is the number of minutes taken for a leaf''s temperature to change halfway to the new equilibrium value, after an abrupt alteration of the incident radiation intensity.