The Use of the Infra-red ‘Image Converter’ Viewing Apparatus in the Study of the Effects of Localized Wounds on the Growth of Etiolated Avena Seedlings

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Abstract
Experiments are described in which etiolated Avena seedlings were briefly exposed to infra-red radiation and observed with an ‘image converter’ apparatus for the purpose of wounding them accurately at predetermined places. Data on the effects of wounding on the subsequent growth of the seedlings in darkness are presented and discussed in terms of the auxin theory of growth regulation.