Abstract

In the conditions of the Left-Bank Forest-Steppe of Ukraine field researches of four recognized in Ukraine varieties of milk thistle (Boykivchanka, Poltavka, Medea, Sirius) were carried out. It was established that the seed yield indicators of the studied varieties ranged from 9.3 c/ha to 15.9 c/ha. The maximum yield was characterized by the variety Medea, which forms an average of 5 productive baskets per plant with an average of 2 g of seeds from the basket. According to the results of laboratory studies, it was found that the content of silymarin in the seeds (2.9–4.2%) varieties meet the current regulatory quality requirements with a significant predominance. The analysis of fatty acid composition of oil varieties indicates a high content of linoleic acid — 58.78–62.39% of the amount of fatty acids, which is evidence of high quality oil of all studied varieties of milk thistle.

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