Improvement of Rose hips (Rosa spp.) by selection wild grown in Yozgat province

This research, aimed of the selection of superior properties in naturally growing rosehips, conducted in Yozgat province of central Turkey during 2015-2016. In this study, fruit samples were taken from a total of 142 the rosehip genotypes. First year, 49 types were found to be promising as a result of weighted grading which was modified. In the second year of the selection, selected genotypes, which were chosen in the first year, were investigated morphological and pomological characteristics. It was determined that the mean fruit weights, fruit flesh ratios, soluble solid contents, pH, titratable acidity, dry matter contents, vitamin C ratios, and these selected genotypes were ranged from 0,77 g to 3,14 g; from 60,98% to 94,36%; from 10,0% to 53,0%; from 3,33% to 4,59%; from 0,75% to 2,49%; from 24,65% to 62,17%; from 869,55 mg/100 mg to 4002,39 mg/ 100g, respectively. Keywords: Rose hips, selection, fruit properties, Yozgat