Abstract
The changes in the levels of growth regulating substances using the wheat coleoptile straight growth test were determined in the leaves of vernalized (flowering) and non-vernalized (non-flowering) plants of sugar-beet, cv. Poly-AG-Poland at two stages; the end of vernalization treatment (210 days from planting) and full-flowering stage. IAA was detected only in the extracts of the leaves of non-vernalized plants after210 days from planting. No inhibitory activity was detected, except in the case of the concentrated extract of the leaves of non-vernalized plants. This growth promoting zone was found at Rf 0.5–0.8 in the leaves of flowering plants after cold treatment and at flowering time. This zone of growth promoting action was suggested to have a major role in the flowering of sugar-beet.
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Khalil, S., Reda, F. Pattern of growth regulating substances in the leaves of vernalized sugar-beet during flowering period. Biol Plant 22, 81–85 (1980). https://doi.org/10.1007/BF02878242
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DOI: https://doi.org/10.1007/BF02878242