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ZINC CONCENTRATION IN MEDICAL PLANTS GROWING IN THE BOTTOM OF THE IRTYSH AND OB

Abstract

The paper explores the safety of application of medical herbs and concentration of heavy metals (exactly zinc) in the medical herbs growing in the overflow lands of the Irtysh (town Semey, village Ozerki) and the Ob (Berdsk). The research was carried out in 2013-2016 and applied laboratory and field methods. The article reveals the data on zinc concentration in medical herbs in dependence on plant species features, morphological features and systematic ones. The research results in the fact that zinc concentration varies from 14.2 to 80.7 mg/kg and average concentration is 44.3 mg/kg. Zinc concentration in morphological organs of medical herbs is as follows: roots (49.3) > leaves (45.6) > flowers (41.2). The investigated medical herbs growing in the overflow lands of the Irtysh and the Ob are located as follows: nettle family (Urticaceae) (63.6) > labiate family (Labiatae juss) (60.3) > rosales (Rosaceae) (60.1) > plantain family (Plantaginaceae) (59.3) > aster family (Compositae) (51.3) > buckwheat family (Polygonaceae) (40.2) > legumes (Leguminosae) (37.9) > valerian family (Valerianaceae) (20.0) > parsley family (Umbreliferae) - (19.1). All the investigated plots are characterized by low accumulation and concentration of zinc in the meander bar; the research didn’t reveal any regularity in element concentration in the central and terrace near flood plain: Berdsk: terrace near flood plain zone > central zone > meander bar zone; Semey: central zone > terrace near flood plain ≥ meander bar zone; Ozerki: central zone ≥ terrace near flood plain ≥ meander bar zone. The researchers didn’t observe any excess of Threshold average zinc concentration (44.3 mg/kg). The authors observed excess in threshold criteria in some medical herbs like garden burnet (Sanguisorba оfficinalis L.) (75.8 mg/kg) and horse gowan (Matricaria recutita L.) (72.6 mg/kg) in all the zones investigated. The authors make conclusion that these medical herbs concentrate heavy metals and cannot be recommended for application. The paper reveals species with low concentration of heavy metals; they are Spanish licorice (Glycyrrhiza glabra L.) and wild chicory (Cichorium intybus) (17.3 mg/kg). These medical herbs are recommended for harvesting, storing and application.

About the Authors

Я. Попп
Новосибирский государственный аграрный университет
Russian Federation


Т. Бокова
Новосибирский государственный аграрный университет
Russian Federation


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Review

For citations:


 ,   ZINC CONCENTRATION IN MEDICAL PLANTS GROWING IN THE BOTTOM OF THE IRTYSH AND OB. Bulletin of NSAU (Novosibirsk State Agrarian University). 2016;(3):98-104. (In Russ.)

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ISSN 2072-6724 (Print)