The diversity of fruit shapes of Prunus armeniaca L. natural populations in Mountainous Dagestan

D.M. Anatov, Z.M. Asadulaev
The study of the natural population of the apricot in Dagestan is important for solving a number of issues in the field of systematics, genetics, ecology and selection. Based on quality characteristics of fruits of 418 trees of natural population of Prunus armeniaca in Mountainous Dagestan, the comparative analysis showed that 91% of the fruits are small, with a rounded top (77%) and with flattened top (71%). They mainly have mostly orange skin color (69%) and orange flesh color (70%), an acidic flavour (74%) with the predominance of dry consistency (56%). Some trees (up to 26%) have fruits with blush skin and the flesh hard to detach from the stone. Practically no large species as well as species of cream-colored skin and flesh are detected. With the growing distance from home gardens and increasing altitude, phenotypic diversity of fruits decreases and the number of small rounded dried fruit species of orange skin color with acidic flavour and hard to detach stone increases. Clustering of natural populations of apricot in Dagestan has shown that the main differentiating characteristic is the shape of the fruit as well as other significant characteristics including “flesh colour” and “skin colour” and less significant characteristics such as “fruit flavor”, “shape of the top” and “fruit consistency”. As for the “shape of the stem”, “depth of the seam”, “blush skin” and “stone detachability” they are found not very informative in the process of clustering of natural populations of the apricot in Dagestan.
Anatov, D.M. and Asadulaev, Z.M. (2021). The diversity of fruit shapes of Prunus armeniaca L. natural populations in Mountainous Dagestan. Acta Hortic. 1324, 265-270
DOI: 10.17660/ActaHortic.2021.1324.41
apricot, populations, phenotypic diversity, fruits, stones, Mountainous Dagestan

Acta Horticulturae