Влияние на някои елементи от технологията на отглеждане върху биохимичния състав на плодове от малини.

The biochemical composition of raspberry fruits at two different planting distances was investigated. Cultivars, such as Willamette, Meeker, Samodiva and the candidate cultivar Magdalena from the collection plantation of RIMSA-Troyan were included in the experiment. The planting material was produced in vitro. Planting distances are: 0.30 m and 0.50 m in the intrarow area of the plantation and 3.00 m in the inter-row spacing. The highest content of ascorbic acid was recorded in both variants of Willamette cultivar with 22.80 mg%. The highest amount of total sugars was found in the fruits of Willamette (0.30 m – 2.40%) and the candidate cultivar Magdalena (0.50 m – 2.70%). Variants with smaller plant spacing in Meeker and the candidate cultivar Magdalena had higher total polyphenol content (196.74 mg%; 204.13 mg%). [ABSTRACT FROM AUTHOR]