A method is founded on consideration of soil as three-phase system where soil solution reaction (pH), absorbing capacity (E) and content of organic matter (OM) are the main characteristics. The method of complete estimation of soil properties (CESP) for quantified analysis of radionuclide soil-to-plant TF dependence on soil properties is grounded and proposed. The area of an effective section (relative units)2 calculated as an area of the triangle with apexes lying in co-ordinates of normalised vectors pH, E and OM in three-dimensional space for complete estimation is used. It is shown that the dependence of 137Cs TF to various crops on CESP can be approximated by equation of power law.

Absorption↗

PubMedDate not supplied

[The effect of uranium on the growth and developmental of plants and the relationship between its accumulation and its concentration in the growth medium].

Explore the source record for details and available documents.

Plants, Edible↗

PubMedDate not supplied

Biological effects of radionuclides on plants.

On the basis of analysis of the literature and personal data, principles of dosimetry were determined and an analysis was given of biological effects of radionuclides on plants when administered aerially and by root. A comparison was made of radiosensitivity of barley and dependence of sensitivity on the growth phase of the plant at the time of irradiation with a standard LD50 and UD50. The possibility of using correlated paramaters of bioinformation, such as the sensitivity indicator of evaluation of biological effects caused by small radiation doses, is considered. On the basis of correlations of the data obtained a prognosis is made of the probability of losses in harvest of grains subjected to radionuclides at various periods of development.

Dose-Response Relationship, Radiation↗

PubMedDate not supplied

[Cytogenetic effect of acute gamma-irradiation on the leaf and apical meristem of common pine].

Explore the source record for details and available documents.

Chromosomes↗

PubMedDate not supplied

[Effect of radiation on the structure of model and natural biomembranes using differential scanning calorimetry].

A novel method of DSC studies of biomembranes has been proposed, making it possible to investigate the influence of ionizing radiations upon the structure of water dispersions of phospholipids and phospholipid-based systems of natural origin, e.g., rat liver homogenates and erythrocyte ghosts. It is shown that in certain concentration range of the bonded water thermograms obtained are reproducible during heating and cooling cycles and can give information about phase state, supramolecular ordering and radiation sensitivity of the systems under consideration.

Animals↗

PubMedDate not supplied

[Analysis of temperature and radiation-induced effects in model and natural biomembranes using UV-spectroscopy method].

Effects of low-dose gamma-irradiation (up to 1 R) upon UV absorption spectra of water dispersions of egg yolk lecithin (1:1) and samples of rat liver homogenate were studied. Clearly detectable changes could be observed in the 200-220 nm range already under dose loads of several mGy. Radiation sensitivity was shown to be essentially temperature dependent, being the highest at physiological temperatures.

Animals↗