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Development of an approach to assess critical doses and dose rates for cultivated plants

Published online by Cambridge University Press:  09 January 2012

J. Barescut ,
D. Lariviere ,
T. Stocki ,
A.A. Oudalova ,
L.N. Ulyanenko  and
S.A. Geras’kin
A.A. Oudalova
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249032 Obninsk, Russia
L.N. Ulyanenko
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249032 Obninsk, Russia
S.A. Geras’kin
Affiliation:
Russian Institute of Agricultural Radiology and Agroecology, 249032 Obninsk, Russia
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Abstract

The aim of this work is to develop methods for an assessment of critical doses and dose rates that can result in significant radiation-induced effects in agrocenoses. This is realized on an example of cultivated plants which are one of the main components of agroecosystems. Available information on dose dependences in such umbrella endpoints as reproduction, survival, morbidity, alterations in morphological and biochemical processes, genetic effects in crops, vegetables, fruit trees, etc are gathered from papers issued mainly in Russian scientific press during last 50 years. Data are maintained as database in MS Access that contains about 10000 records at the moment. As critical exposure values, doses are considered producing 50% changes of biological effect at acute impact (ED50), or dose rates resulting in 10% changes at chronic exposure of plants (EDR10). The critical doses and dose rates for agrocenosis estimated from available information on reproduction and survival are presented here. Primary data are assesed for their quality according to several criteria. Three models (linear, logariphmic, logistic) for dose-effect relationship are tested for an applicability to fit a dose-effect dependence taking account of their goodness-of-fit and robustness of ED50 and EDR10 estimates.

Type
Research Article
Information
Radioprotection , Volume 46 , Issue 6: ICRER 2011 – International Conference on Radioecology & Environmental Radioactivity: Environment & Nuclear Renaissance , 2011 , pp. S249 - S254
Copyright
© Owned by the authors, published by EDP Sciences, 2011

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