Physiological parameters such as photosyhtnesis rate (A), transpiration rate (E), stomatal resistance (rs),
intercellular CO2 concentration (Ci) as well as the photosynthetic active radiation (PAR) were determined using a
portable device LCi (ADC BioScientific Ltd.). Physiological measurements were performed at three heights: 70 cm,
100 cm and 200 cm, for each variant. The following observations and measurements were effectuated: the plant
height, the average number of shoots, fruits per node, number of fruits on the main stem, number of fruit on the
lateral shoots, total fruit number/ plant, yield/plant/m2 and the average weight of the fruits.