Biological and Pomological Characteristics of Autochthonous Plum Cultivars Collected in Western Serbia

During 2020 and 2021, the flowering phenophase and the most important characteristics of
trees and fruits of fourteen in situ collected autochthonous plum genotypes grown in the area of western Serbia were studied. The results showed that none of the collected genotypes had low vigour,
while the suckering tendency varied from low to extremely high, and yield efficiency ranged from
medium to good. All studied genotypes were characterized by a long flowering period, with genotypes ‘[-GMNe/1’ and ‘[-U`K/5’ standing out for their very late onset of flowering. The tested genotypes had oval to elliptical fruit shape, small stone and medium flesh percentage. Regarding fruit
size, most genotypes belonged to the small fruit group, a few were classified as medium-sized fruit
and only one genotype (‘[-KrGP/2’) fell into the large fruit category. Regarding the content of soluble solids, all tested genotypes showed good fruit quality. However, genotype ‘[-^aB/1’ was characterized by the highest content of soluble solids, total and invert sugars, which indicate its particular
chemical composition