The effects of preharvest phytogenetic preparates that can reduce the percentage of cracked cheries

This research carried out in the years 2012-2013 was aimed to investigate the effects of various phytogenetic preparation applications on the fruit cracking and fruit quality parameters in 0900 Ziraat, Napolyon and Early Burlat sweet cherries. For this aim the trees of the sweet cherry cultivars were sprayed with Raingard (0.5 ml/L), Frutasol (20 ml/L) and Greenstim (0.2 g/L). The Raingard and Frutasol applications were sprayed to trees two times, the first apllication were sprayed on colouring fruit period and the second one were sprayed after 2 weeks of first application. The Greenstim application was single, sprayed on the colour change period. In this research, all applications shows that can reduce the fruit cracking and in these applications, Frutasol and Greenstim effected the fruit quality parameters positive aspect generally. In point of reducing fruit cracking, the best results founded with Greenstim application from Napolyon and 0900 Ziraat sweet cherry cultivars. Key words: Sweet cherry, Prunus avium L., fruit cracking, fruit quality parameters, Frutasol, Greenstim, Raingard.