Published in Scientific Papers. Series B, Horticulture, Vol. LXV, Issue 2
Written by Daniela ENCIU (BUNICELU), Ioana CĂTUNEANU, Liliana BĂDULESCU, Florin TOMA
Although the bulbs are produced in many countries, the Netherlands is the center of the world flower bulb industry. Bulbs are specialized underground organs that undergo a series of physiological and biochemical changes during the cold season. The main purpose of this paper was to to compare the correlations between physiological parameters and biochemical changes. The storage conditions for hyacinth bulbs were: T:1°C and RH: 90%, and the five cultivars of hyacinths chosen for analysis (Gipsy Queen, Jan Boss, Miss Saigon, Pink Pearl, White Pearl), these being analyzed at two different moments (before and after the storage period), and the analyzes performed were: respiration and transpiration rates, mass loss, glucose, fructose and soluble solids contents. From obtained results it was observed decreases of the mass loss between 6% (for Jan Boss and Pink Pearl cultivars) and 10% (for White Pearl cultivar), between the initial and the final moment of analyses. For respiration rate were observed increases between 4 times (for Jan Boss cv.) up to 6 times (for Pink Pearl cv), between the initial and final moments. The soluble solids content recorded an increase between 10% for Miss Saigon cv. up to 20% for Gipsy Queen cv., between the initial and final moments.
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