Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 2
Written by Diyan GEORGIEV, Maria GEORGIEVA, Denitsa HRISTOVA, Tatyana BOZHANSKA
The scientific experiment was conducted in a demonstration plantation at the Research Institute of Mountain Stockbreeding and Agriculture of Troyan. A fertilizing scheme was applied to aronia shrubs with various types of fertilizers, as well as combinations among them. The biochemical composition of aronia berries was compared after harvest and after one year of storage at -180C. High values of dry weight, dry matter by Re, pectin, and total polyphenols were identified in the potassium sulfate fertilizing variant. The combined fertilizing with triple superphosphate, potassium sulfate, and carbamide gave the highest content of total sugars, sucrose and total polyphenols in fruits after the storage period. Statistical differences were proven among fertilizing variants in terms of dry matter by Re, total sugars, sucrose, and ascorbic acid. Organic acids, anthocyanins, and total polyphenols had proven results. The objective of the present study is to analyze the changes in the biochemical composition of aronia berries after the application of various fertilizing variants, after harvest, and one-year storage period.
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