Endogenous acidic and neutral growth-promoting substances were extracted from sour cherry ( Prunus cerasus L. cv. Montmorency) seed and pericarp tissues, separated by ascending paper chromatography and detected by the Avena first internode bioassay. Although correlations were established between the levels of seed auxin and concomitant development of the nucellus and integuments and the development of the endosperm and embryo, no correlation was found between the levels of seed and pericarp auxin or between the level of pericarp auxin and concomitant fruit development.
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Hopping et al. (1975) studied this question.