S ummary . Bacteria isolated from pink‐coloured grains of English wheat were identified as Erwinia rhapontici , and were identical with isolates made by Luisetti & Rapilly (1967) from wheat with a similar disorder in France. Pink grain was reproduced with English and French isolates and with authentic cultures of E. rhapontici when developing grain of wheat plants was inoculated, but only after wounding.
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Pauline Roberts (1974) studied this question.
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