Physiologia Plantarum · 1975 · 43 citations · 11 references
Life SciencesPlant BiologyPlant SciencesPlant BiochemistryPlant Hormone BiologyPlant PhysiologyAuxin BiologyBulbous Ornamental CropsPlant Growth RegulationAuxin TreatmentsBulb BiologyCytokinin Effects On GrowthCytokinin-mediated Shoot GrowthGibberellin ApplicationGibberellin Effects
Abstract The effect of various growth substances on regeneration and growth of bulblets on excised bulb scale segments of Hyacinthus orientalis L. cv. Pink Pearl was studied. Bulblet formation was promoted by the auxins IAA and IBA but was inhibited by NAA at high concentrations. IAA hardly affected bulblet weight, whereas IBA and NAA at high concentrations decreased it. Cytokinins had hardly any effect on bulblet regeneration and bulblet weight, Gibberellins inhibited both bulblet regeneration and bulblet weight; GA 4+7 acted much stronger than GA 3 . ABA and ethephon decreased bulblet regeneration and bulblet growth.
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