Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XXV, Issue 1
Written by Stanislava ATANASOVA, Maria GEORGIEVA, Diyan GEORGIEV, Petya IVANOVA
The biochemical composition of raspberry fruit was studied at two different planting distances. Their qualitative characteristics were determined. The impact of an individual technological element on the studied indicators was analysed. The experiment included raspberry cultivars, such as 'Willamette', 'Meeker', 'Samodiva' and a candidate cultivar 'Magdalena' from the collection plantation of RIMSA-Troyan. The planting material was produced in vitro. The planting distances were: 0.30 m and 0.50 m in the intra row spacing and 3.00 m in the row spacing. The highest amount of anthocyanins (38.87 mg) and total polyphenols (263.37 mg%) were reported for 'Willamette' fruit at 0.50 m planting distances. The highest antioxidant activity was reported in 'Willamette' fruit (7750.00 μmol TE/100 g) (at 0.30 m) and 'Samodiva' (6625.00 μmol TE/100 g) (at 0.50 m). The sensor rating is in the range from 4.63 ('Willamette' - 0.50 m) to 4.93 ('Magdalena' candidate cultivar - 0.30 m).
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