the impact of drought stress of the cultivation medium on the growth and postharvest life of lilium and chlorophyll in different potassium concentrations of nutrient solution

To study the effect of different concentrations of potassium in thenutrient solution and water stress on the quality and quantity yield of liliumla cv.termoli, a pot experiment was conducted based on completely randomizeddesign in sand and perlite medium (50:50) in three levels of potassium (kfree,6 mm k and and 12 mm k in hoagland solution) with three replications.in the present study, the growth indices, post-harvest life of flower andpotassium and chlorophyll contents were measured in shoots. the resultsshowed that the plant dry/fresh weight and vegetative height was highest in 6mm potassium treatments. lily postharvest life at 6 mm k was increased 5.7days relative to k-free conditions. the chlorophyll a, b and total content innutrient solution without k were lower than in nutrient solution with 6 and 12mm potassium.