ITEMS

modern scholarly publishers in the finest tradition

Journals

	Search

Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

Institutional price:	$4518.00
Issues per year:	20

Best Paper Award Selection - Editorial Board Site

2002, Volume57

203 pages

Issue price - $394.00

Effect of Electromagnetic Radiation and Temperature on Wheat Seed Viability

N. I. Grigor'eva
S. S. Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

L. M. Chepel
V. Karazin National University of Kharkov, 4, SvobodaSq., Kharkov, 61077, Ukraine

S. P. Sirenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine

T. M. Cheshko
V. Karazin National University of Kharkov, 4, SvobodaSq., Kharkov, 61077, Ukraine

V. I. Kiyko
V. Karazin National University of Kharkov, 4, SvobodaSq., Kharkov, 61077, Ukraine

N. N. Gorobets
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkov; N Zhukovski National Aerospace University “KhAI”, 17, Chkalov St., Kharkiv, 61070, Ukraine

ABSTRACT

The influence of electromagnetic radiation (EMR.) of microwave (MW) or EHF ranges and He-Ne laser rays on thermal stability of wheat seeds was investigated. The energetic dose density was common for all the types of radiation under study, being 840 mJ/cm² or 126 mJ/cm² in different sets of experiments. The seeds were warmed-up in a water thermostat at 52 °C for 20 min. The EMR effect was examined prior to and after the seed warming-up with different time intervals (5, 60 min and 24 hours) between the impacts of the above factors. The seed reaction was judged from the germination percentage. The results obtained suggest the EMR ability to modify the thermal stability of wheat seeds. The protective effect was observed for the seeds being irradiated after warming-up. In some cases the seed irradiation prior to warming-up was conducive to the sensibilization effect. The similarities in the seed reaction to EMR with different wavelengths but the same energetic dose density were revealed. The present study can be regarded as a model of reactions occurring not only in the seeds but also in other biological objects, including human organism. This should be taken into account in using a variety of physiotherapy methods.