Magdalene Dragassaki

Magdalene Dragassaki
Hellenic Mediterranean University · Agriculture

Doctor of Philosophy

About

14
Publications
1,507
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44
Citations
Introduction

Publications

Publications (14)
Article
Ptilostemon chamaepeuce, a plant native to Crete, has the potential to develop into a new flori-cultural crop; therefore regeneration via organogenesis was studied. Seeds were germinated at rates higher than 84% to produce plant material for in vitro culture. The influence of growth regulators was investigated on MS and WPM media supplemented with...
Article
Full-text available
Ptilostemon chamaepeuce (L.) Less, has the potential to develop into a new floricultural crop but techniques for its propagation are required. Studies were conducted to investigate the effect of IBA application, the dipping in tap or warm water and various substrates upon adventitious rooting of leaf stem tip cuttings. Cuttings were dipped in ethan...
Article
Full-text available
Stenting is a grafting technique for quick propagation of greenhouse rose plants all year round based on bench-grafting of a leafy scion with a dormant bud on a single internode stem cutting of the rootstock and rooting under mist. Formation of the graft union and rooting occurs simultaneously, resulting in a complete plant in 3 weeks. The present...
Article
Colchicum macrophyllum (Colchicaceae), a protected hysteranthous geophyte is being investigated as a potential floricultural crop. In its natural habitat it exhibits seed dormancy and low germination. Dormancy and seed germination of C. macrophyllum were investigated by seeds pre-treated for 4 or 8 weeks in wet vermiculite at 5°C, 20°C or room temp...
Article
Sternbergia sicula (Tineo ex Guss), Amaryllidaceae, is a bulbous perennial plant native of Eastern Mediterranean countries growing in rocky areas 100 to 1000 m high. It bears bright yellow flowers in early autumn before leaves appear in a rosette form. It is an attractive plant with potential use in commercial floriculture mainly as a landscape pla...
Article
Staehelina petiolata (L.) Hilliard et Burtt., an endemic plant of Crete, is a potential new floricultural crop. Studies were conducted to investigate the effects of season, IBA application, and rooting media on rooting of stem tip cuttings from wild plants of S. petiolata. Season had a strong influence on rooting percentage and number of roots. Inc...
Article
Twin scale explants of Pancratium maritimum were cultured on MS supplemented with BA and NAA, each at concentrations of 0, 5, 10 or 20 μM, alone or in combination. Each explant produced 3-4 adventitious bulblets when cultured on MS with or without BA, whereas, in all combinations of BA and NAA (or NAA alone) the number of bulblets per explant was r...
Article
Ebenus cretica, L, Fabaceae is an attractive endemic plant of Crete being studied at the TEI of Heraklion with promising results as a potential new flower crop. Research has shown that E.cretica can be propagated by seed or stem cuttings. However, due to great variability observed among the native population, a series of experiments have been initi...
Article
The stimulation of excised coleoptile elongation in wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) caused by a low-molecular weight regulator released from the polyvinyl esters of 2,4-dichlorophenoxyacetic acid was studied. The specific relation between regulator concentration and polymer bioactivity depended on the chemical structure...
Article
It was established that the rate of alkaline hydrolysis of polymeric esters of a number of monocarboxylic acids falling into the category of plant growth regulators of the auxin group (2,4-dichlorophenoxyace-tic, 1-naphthylacetic, 2-naphthoxyacetic, and 2-naphthylthioacetic) decreases as the strength of the acid decreases and the molecular mass of...
Article
Full-text available
Ebenus cretica , Leguminosae, is a characteristic endemic plant of the Mediterranean island of Crete. It is a perennial bush up to 1 m tall with composite pubescent leaves and pinky red or purple flowers on 5- to 20-cm-long racemes. The fruit is surrounded by the calyx and contains one seed. The plants grow on rocky hillsides in alkaline soils at a...
Article
Achimenes is a summer-flowering pot plant commonly propagated by shoot tip cuttings taken from rhizomes released from dormancy. Micropropagation was used in this study in order to establish a protocol for producing plants in winter when Achimenes are not usually available. Leaf segments, taken in August 1993, from hybrids `Flamenco', `Rosenelfe', `...
Article
Full-text available
Polymeric formulations of plant growth regulators (PGR) are high-molecular weight systems in which the PGR unit can be slowly released providing prolonged action and effectiveness in a wide range of concentrations. In this study, Achimene explants were used for testing the biological activity of polymeric derivatives of NAA and 2,4-D. Shoots of Ach...
Article
Ebenus cretica , Leguminosae, is a characteristic endemic plant of the Mediterranean island of Crete. It is a perennial bush up to 1 m tall with composite pubescent leaves and pinky red or purple flowers on 5- to 20-cm-long racemes. The fruit is surrounded by the calyx and contains one seed. The plants grow on rocky hillsides in alkaline soils at a...

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