Comparative measurements of plant radioactivity in the Agrobotanical Garden and experimental fields

  • Attila T. SZABO University of Agricultural Science and Veterinary Medicine, 3-5 Manastur St., 400372 Cluj-Napoca
  • Stefan TAMAS Radio Isotope Laboratory, 3rd Medical Clinic St. Croitorilor 19, Cluj-Napoca
Keywords: sampling effects, plant radioactivity

Abstract

In order to demonstrate the usefulness of the Garden's Catalogue in unforeseen situations, the radioactivity of some plant species cultivated on different plots of the Agrobotanical Garden has been measured in May 1986. Comparative measurements have been carried out on species harvested from the experimental fields Sapca-Verde (Cluj-Napoca) and from a collection trip in Tulcea county (Tulcea, Babadag), too. A monocanal energy spectrometer NK-350 (Gamma) has been used for measurements; impulses per minute have been registered and plant radioactivity expressed in Becquerel (Bq) units has been calculated. The highest values have been measured in the Agrobotanical Garden (alt. s.m. 475 m, incl. about 200 , exp. NE). Small-leaved low stature plants of Cyperaceae and Poaceae family have been much more radioactive than large-leaved Brassicaceae. In 28th May 1986 plants were generally more radioactive at basis as on top; older stems were 4-6 times more radioactive than top leaves or regrowth after harvest. Washing in running water (100 gr fresh weight in 50 l water for 5 minutes) reduced the radioactivity levels measured in different species with about 30%.

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Published
1986-08-05
How to Cite
SZABO, A. T., & TAMAS, S. (1986). Comparative measurements of plant radioactivity in the Agrobotanical Garden and experimental fields. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 16(1), 143-150. https://doi.org/10.15835/nbha161218
Section
Research Articles

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