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Gibberellin and growth inhibitor changes in potato tuber buds in response to cold treatment

1976; Wiley; Volume: 83; Issue: 2 Linguagem: Inglês

10.1111/j.1744-7348.1976.tb00614.x

1744-7348

Tudor H. Thomas, D. C. E. Wurr,

Potato Plant Research

SUMMARY Eye plugs removed from tubers of four potato cultivars previously stored for 14 days at 2 °C and then left at 15 °C for a further 14 days contained more gibberellin and less growth inhibitor activity than those kept at 15 °C for 28 days. Two gibberellin‐active peaks were obtained when the extracts from cold‐treated tubers were separated on paper chromatograms with an isopropanol/ammonia/water solvent. The main inhibitor did not appear to be abscisic acid.