Plant growth regulators (PGRs) play a key role in regulating physiological and morphological development of plant species. Application of these PGRs can improve preand post-harvest quality and quantity of ornamental flowers and lessen the harmful effects of injury incurred at harvesting time. The objective of this study was to determine the appropriate spraying solution for improving preand pos...

this experiment was carried out in the agricultural faculty of guilan university. the factorial experiment was performed based on a completely randomized design of three replications. the experimental factors comprised of: lillium cultivars, navona (asiatic) and fangio (la), four levels of calcium nitrate (0, 1, 1.5 and 2 mm) in combination with three levels of iba (500, 750 and 1000 ppm) . the...