CORRELATIONS BETWEEN THE DARK RED COLOR OF THE EXOCARP MALUS BACCATA (L.) BORKH AND PHOTOPROTECTIVE COMPOUNDS
The dwarf form of Malus baccata, which grows in the Republic of Buryatia and the Irkutsk region, has a dark red exocarp. Another feature of the fruits of Malus baccata is that they are not sensitive to sunburn and have immunity to scab. To understand what determines the dark red exocarp, a correlative comparison of the morphological characters and the biochemical composition of the fruits of Malus baccata has been performed. As a result of the correlation analysis, it has been found that the dark red color of the exocarp has a significant positive correlation with an increase in the concentration of procyanidin B1, phloridzine, quercetin, anthocyanin and ascorbic acid in the exocarp.