Seed germination and conservation of endemic, rare, and threatened aromatic plants of Cyprus

Kadis, Costas; Kounnamas, Constantinos; Georghiou, K.

doi:10.1560/ijps.58.3-4.251

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…As other studies have shown (e.g. Francisco-Ortega et al 1994;Perez-Garcia et al 1995;Georghiou 1996;Cerabolini et al 2004;Estrelles et al 2004b;Gimenez-Benavides et al 2005;Brusa et al 2007;Lorite et al 2007;Todorovic et al 2007;Flores et al 2008;Kadis et al 2008), knowing how to germinate the seeds is vital in developing effective procedures and protocols for promoting ex situ conservation for many rare and threatened species.…”

Section: Discussionmentioning

confidence: 99%

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Seed dispersal and germination behavior of three threatened endemic labiates of Cyprus

Kadis

Georghiou

2010

Plant Species Biology

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The present study examined seed dispersal and germination in three of the most threatened endemic labiates of Cyprus: Origanum cordifolium, Phlomis brevibracteata and Phlomis cypria ssp. occidentalis. Some common traits in these taxa can be correlated with their overall survival strategy. Seeds mature in mid to late summer, but most seeds remain on the mother plants until the beginning of the rainy season. The opening of the calyces containing the seeds seems to be caused by absorption of moisture. Water is also the most important dispersal factor because the seeds are dispersed by rain. Seed germination occurs at relatively low temperatures that prevail in the field at the beginning of the rainy season. This behavior provides the plants with ecological advantages because their seeds are exposed on the soil at the most appropriate period (mid to late autumn) for germination and seedling survival. The present study contributes substantially to in situ and ex situ conservation of these threatened plants.

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Section: Discussionmentioning

confidence: 99%

“…Preliminary experiments have shown similar behavior in the other endemic labiates of Cyprus, that is, Phlomis cypria ssp. cypria and Sideritis cypria (C. Kadis, 2008).…”

Section: Discussionmentioning

confidence: 99%

Seed dispersal and germination behavior of three threatened endemic labiates of Cyprus

Kadis

Georghiou

2010

Plant Species Biology

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“…Depending on their climatic origin, various species have different temperature requirements for seed germination [ 14 ]. The optimal germination temperature for Mediterranean species is usually relatively low, ranging from 5 to 15 °C, and germination in nature is often limited to early winter when rainfall is adequate [ 17 , 18 , 19 , 20 ]. This strategy ensures that plants may have a longer growing season period, lasting until the onset of typical Mediterranean summer droughts.…”

Section: Introductionmentioning

confidence: 99%

Influence of Temperature on Seed Germination of Five Wild-Growing Tulipa Species of Greece Associated with Their Ecological Profiles: Implications for Conservation and Cultivation

Hatzilazarou

Pipinis

Kostas

et al. 2023

Plants

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Although tulips are famous worldwide as ornamental plants, the knowledge about the seed germination of wild-growing species remains limited. The aim of the present study was to investigate the effect of temperature on seed germination of the local, wild-growing Greek endemics Tulipa bakeri and T. goulimyi and the sub-Balkan endemic T. undulatifolia, which are threatened with extinction, as well as the Mediterranean T. australis and the Asiatic T. clusiana naturalized on Chios Island (Greece). The germination responses at five constant temperatures (5, 10, 15, 20, and 25 °C) were assessed for all studied species in growth chambers under a 12:12 light–dark photoperiod. The ecological profile for each species was developed in R using open-source bioclimatic data; this was built to illustrate the abiotic environmental conditions of their wild habitats, to facilitate the examination of temperature effects on seed germination, and to facilitate their cultivation in artificial environments. The results indicated that the seed germination requirements of the studied species had a range-specific temperature dependence, reflecting their natural adaptation to local ecological conditions. Seed germination of T. bakeri, T. australis, and T. clusiana was observed only in a narrow range of very low temperatures (5–10 °C), whereas germination of T. undulatifolia and T. goulimyi occurred at temperatures between 5 and 15 °C. A temperature increase to 20 or 25 °C resulted in the absence of seed germination for all five Greek tulip species. The germinated seeds were planted in pots and bulblets were developed under greenhouse conditions. Seeds and bulblets constitute valuable genetic materials for the cultivation and ex situ conservation of these five Greek tulip species, three of which are threatened with extinction.

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“…They have a great export potential for medicinal, aromatic and ornamental purposes while their cultivation has been limited due to low germination performance and slow seedling growth. Some reports on germination of Sideritis species showed that the germination performance was varied with temperature, light, seed treatment and species (Evstatieva & Popova 1998;Esterelles et al 2010;Kadis et al 2010;Yankova-Tsvetkova et al 2013). They reported controversial results about germination behavior of different Sideritis species and have not developed a standard method.…”

Section: Introductionmentioning

confidence: 99%

Factors affecting germination performance of four endemic Sideritis species in Turkey

Kaya

Kulan

Gümüşçü³

et al. 2015

Tarım Bilimleri Dergisi

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The genus Sideritis is an indigenous plant to temperate and subtropical regions of Turkey, especially for Mediterranean and Aegean region, and is extensively used as herbal tea and spice. The seeds of Sideritis species have a difficulty in germination, which limits their cultivation. This study was conducted to evaluate the germination performance of 4 endemic Sideritis species (Sideritis condensata, S. libanotica ssp. linearis, S. leptoclada and S. tmolea) harvested freshly or stored for 1 and 2 years in terms of germination percentage and mean germination time and to determine the suitability of seed treatments (Hydration and gibberellic acid (GA 3 ) application, and their combination with pre-chilling) for overcoming germination difficulty in the species. Germination percentages of these species ranged from 28.5% to 77.0%. The lowest germination rate and the highest mean germination time (11.9 day) were determined in S. libanotica ssp. linearis in fresh seeds. Improved germination and shortened mean germination time were achieved using 200 mg L -1 GA 3 application. Seed storage did not influence the germination of the Sideritis species. It was found that pre-chilling did not prerequisite for germination of the species. It was concluded that GA 3 treatment should effectively be used as a method for improving germination of endemic Sideritis species regardless of seed age.

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Seed germination and conservation of endemic, rare, and threatened aromatic plants of Cyprus

Abstract: Micromeria cypria, Salvia veneris, and Teucrium divaricatm ssp. canescens season. Salvia willeana and Nepeta troodi, rate. In both species, treatment with GA 3 S. willeana. Sideritis cypria Teucrium divaricatum ssp. canescens ments with nitrates, GA 3

Cited by 7 publications

References 29 publications

Seed dispersal and germination behavior of three threatened endemic labiates of Cyprus

Seed dispersal and germination behavior of three threatened endemic labiates of Cyprus

Influence of Temperature on Seed Germination of Five Wild-Growing Tulipa Species of Greece Associated with Their Ecological Profiles: Implications for Conservation and Cultivation

Factors affecting germination performance of four endemic Sideritis species in Turkey

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