The monitoring of changes in the CWSI of potato leaves was performed by determining the leaf surface temperature (T) and the temperatures of moisture (Tmoisture) and dry (Tdry) standards using a thermal imager, the Testo 885 (Testo, Lenzkirch, Germany). The acquired images were processed using the IRSoft software (version 4.8) (Testo, Lenzkirch, Germany), and the stomatal conductance value of the leaf was obtained using the equation [92 (link)]
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