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Ultrasonic irradiation of bean roots and the influence of exposure parameters

Department of Medical Physics, Royal Postgraduate Medical School, Du Cane Road, London W12 0HS

This excerpt was created in the absence of an abstract.

Bleaney and Oliver (1972) have demonstrated dose response curves for inhibition of root growth in Vicia faba seedlings following irradiation with continuous wave 1·5 MHz ultrasound at intensities up to about 3 W/cm², averaged over the dividing region of the meristem. It appears therefore that this system is one in which the biological effects of different irradiation parameters may be studied and further experiments have been carried out in this laboratory, using essentially the same techniques of culture and irradiation, in an attempt to elucidate the interaction mechanisms involved. These results will be reported in detail elsewhere but some points form an immediate extension of their earlier studies.