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Abstract
The aim of the research is to determine the optimal terms of the accumulation of vitamins by the organs of Geum depending on the rhythms of their seasonal development. Methods. The method for determining the vitamin C is based on the ability of ascorbic acid to change the color to blue in the acidic medium - 2,6 - dichlorophenolindophenol - to the leucoform, while ascorbic acid is oxidized to dehydroascorbic acid. Determination of vitamins A and E was carried out by reversed-phase high-performance liquid chromatography. Results. It was found that the highest indices of vitamin A and E in the leaves of G. urbanum and G. rivale are observed in July. In the rhizomes of avens, the maximum concentration of vitamins A and E is observed in March during their intensive growth, vitamin C in January. Decrease in the supply of rhizomes of plants with vitamins A and E continues in the autumn period, while for the vitamin C it is observed in the early spring. In the inflorescences, at the beginning of flowering, G. rivale L. and G. urbanum L. are characterized by the greatest content of vitamin A; by the end of flowering, vitamins E and C are accumulated more intensively. Conclusion. The leaves of wintering plants of G. urbanum L. and G. rivale L. continue to contain vitamins A, E, C despite low temperatures under snow cover and are not subject to significant destruction. During the winter rest period, the content of vitamin C in the roots reaches a maximum.
Highlights
G. urbanum и G. ri- кологической, парфюмерной отраслях проvale во взрослом состоянии представляют мышленности особый интерес представляют собой «архитектурную модель»: на много- сведения о накоплении витаминов в органах летнем моноподиально нарастающем вегета- гравилатов с учётом ритма их сезонного разтивном побеге образуются монокарпические вития
Moscow-Leningrad, USSR Academy of Sciences Publ., vol V
Summary
ЗАВИСИМОСТЬ СОДЕРЖАНИЯ ВИТАМИНОВ В ОРГАНАХ GEUM URBANUM И GEUM RIVALE (GEUM, ROSACEAE) ОТ РИТМА СЕЗОННОГО РАЗВИТИЯ. Установлено, что наибольшие показатели содержания витаминов A и E в листьях G. urbanum и G. rivale наблюдаются в июле. В корневищах гравилатов максимальная концентрация витаминов A и E отмечается в марте в период их интенсивного отрастания, витамина C - в январе. Отмечается наибольшее содержание витамина A, к концу цветения накапливаются более интенсивно витамины E и C. Витамины A, E, C в листьях зимующих растений G. urbanum L. Ключевые слова: Geum rivale L., Geum urbanum L., витамины, корни, соцветия, листья, полезные свойства. Зависимость содержания витаминов в органах Geum urbanum и Geum rivale (Geum, Rosaceae) от ритма сезонного развития // Юг России: экология, развитие. DEPENDENCE OF VITAMIN CONTENT IN THE GEUM URBANUM AND GEUM RIVALE (GEUM, ROSACEAE) ORGANS ON THE RHYTHM OF SEASONAL DEVELOPMENT
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