effect of salinity stress and trinexapac-ethyl on initial growth of two lolium perenne cultivars

abstract little information is available concerning morphological responses of lolium perenne cultivars (numan and speedy green) to salinity and trinexapac-ethyl treatment in initial growth. in order to evaluate the effect of salinity treatment (0, 2000, 4000 and 6000 mg/lit) and trinexapac-ethyl levels (0, 50, 100 gr/ha) on morphological responses of 'numan' and 'speedy green' in initial growth stage, an experiment was conducted in a factorial experiment based on completely randomized design with three replications. sodium chloride levels significantly affected shoot and root length, but no significant trinexapac-ethyl treatment was found in initial growth of lolium perenne cultivars. trinexapac-ethyl and salinity treatment has no intraction effect in initial growth of this two cultivars. lolium perenne performance was not affected by trinexapac-ethyl in all concentration in initial growth of this experiment when irrigated by salinity water.