Effect of biostimulant application on development of pansy (Viola tricolor var. Hortensis dc.) seedlings

Pansy (Viola tricolor var. hortensis DC.) is a biennial large-flowered hybrid plant cultivated as popular ornamental in urban green areas. The plants prefers sun and well-drained soil, but also tolerate low temperatures. optimal time for transplanting pansy seedlings outdoors beds autumn, although early autumn frosts can affect the insufficient nutrient uptake, which be limiting factor seedling survival. To avoid these effects, treated with different growth stimulants such biostimulant Radifarm®. aim of this study was to investigate effects Radifarm® application on development seedlings. experiments were carried out glasshouse Faculty Agriculture Banja Luka, Bosnia Herzegovina, set up split-plot design untreated during 2014 2015. In greenhouse, young (Valagro SpA, Italy) concentration 0.30% while control only tap water. During experiment, following parameters recorded: height (cm), diameter number leaves, flowers. At end experiment root above-ground fresh, dry mass recorded. Biostimulant treatment showed improved results by increasing examined parameters. ensure production high quality overcoming temperature stress providing good uptake reduction fertilizers environmental contamination.