Flowering and nutritional status of Gladiolus hybridus L. 'Black Velvet' following gibberellin treatment
Flowering and nutritional status of Gladiolus hybridus L. 'Black Velvet' following gibberellin treatment release_3empk2oywrct7f5tqydc3lk2wm

Abstract

Flowering and nutritional status in Gladiolus hybridus L. 'Black Velvet' were assessed following gibberellic acid treatment (GA<sub>3</sub>). Treatment were applied to corm (12–14 diameter) by soaking for 30 min in water solutions of GA<sub>3</sub> at 100, 350 and 600 mg/dm<sup>3 </sup>with a control consisting of soaking-in water. All GA<sub>3</sub> treatments inhibited elongation of inflorescence shoots and stimulated spike elongation. None of the tested concentrations affected the number of developing flowers in the spike, except for the 100 mg/dm<sup>3</sup> in the 2nd year of the study. All GA<sub>3</sub> treatments stimulated calcium uptake, but had no effect on the uptake of other macronutrients. All the GA<sub>3</sub> treatments increased manganese content in leavesbud did not affect copper content. GA<sub>3</sub> at 600 mg/dm<sup>3</sup> stimulated uptake of iron and boron at 600 mg/dm<sup>3</sup> but inhibited both at lower concentrations. Zinc uptake was stimulated at 100 mg/dm<sup>3 </sup>but inhibited at higher concentration. 
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