2.1. Crop cultivars
Two crop cultivars of greenhouse vegetables were used in these
experiments; cucumber (Cucumis sativus L.) “RS 24189 F1” from
Royal Sluis Com. (USA), and indeterminate tomato; (Solanum lycopersicum Mill.) “Newton” from Syngenta Company, The Netherlands.
The cultivars were selected as they are the ones of the most commonly growing under protected environment in the JV.