Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover
Round-leaved sundew (Drosera rotundifolia L.) is a rare bog species that is commonly collected for the European herbal market in the wild, leading to the destruction of its natural populations. The aim of this study is to compare sundew cultivation methods on Sphagnum lawn that meet the requirements...
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| Format: | Article |
| Language: | English |
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International Mire Conservation Group and International Peatland Society
2021-05-01
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| Series: | Mires and Peat |
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| Online Access: | http://mires-and-peat.net/media/map27/map27_15.pdf |
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| author | Balázs Baranyai Matthias Krebs Claudia Oehmke Hans Joosten |
| author_facet | Balázs Baranyai Matthias Krebs Claudia Oehmke Hans Joosten |
| author_sort | Balázs Baranyai |
| collection | DOAJ |
| description | Round-leaved sundew (Drosera rotundifolia L.) is a rare bog species that is commonly collected for the European herbal market in the wild, leading to the destruction of its natural populations. The aim of this study is to compare sundew cultivation methods on Sphagnum lawn that meet the requirements of the pharmaceutical industry and could promote a sustainable commercial cultivation. Seed germination and seedling survival of D. rotundifolia were studied in biodegradable cellulose pots, paper mesh bags or directly sown (cultivation methods) in a natural, a semi-natural Sphagnum farming and a greenhouse environment (cultivation conditions); using different seed densities. Drosera was cultivated on Sphagnum palustre or S. papillosum lawn and with or without co-occurring vascular plants. Best seed germination for all cultivation methods was recorded in the greenhouse, most successful were cellulose pots (≤ 26 %). Cellulose pots were also most successful under semi-natural (≤ 15 %) and natural (≤ 7 %) conditions. Lowest seed germination rates (< 1 %) were found for direct sowing under semi-natural and natural conditions, indicating that large-scale cultivation by direct sowing requires large quantities of seeds. High survival rates were observed for all cultivation methods in the second year of growth (mean 70 %). The removal of co-occurring vascular plants showed a positive correlation with the number of Drosera seedlings in the first year and led to a higher number of surviving Drosera plants in the second year. Cultivation of D. rotundifolia in biodegradable cellulose pots and direct seed sowing on Sphagnum lawns meet the cultivation requirements of the pharmaceutical industry and have many ecological benefits compared to collection in the wild. |
| first_indexed | 2024-03-12T10:53:08Z |
| format | Article |
| id | doaj.art-0bf2b7721c8a4d10a3495e41673c204f |
| institution | Directory Open Access Journal |
| issn | 1819-754X |
| language | English |
| last_indexed | 2024-03-12T10:53:08Z |
| publishDate | 2021-05-01 |
| publisher | International Mire Conservation Group and International Peatland Society |
| record_format | Article |
| series | Mires and Peat |
| spelling | doaj.art-0bf2b7721c8a4d10a3495e41673c204f2023-09-02T06:38:06ZengInternational Mire Conservation Group and International Peatland SocietyMires and Peat1819-754X2021-05-01271511410.19189/MaP.2020.APG.StA.1937Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant coverBalázs Baranyai0Matthias Krebs1Claudia Oehmke2Hans Joosten3Institute of Botany and Landscape Ecology, University of Greifswald, Partner in the Greifswald Mire Centre, GermanyInstitute of Botany and Landscape Ecology, University of Greifswald, Partner in the Greifswald Mire Centre, GermanyInstitute of Botany and Landscape Ecology, University of Greifswald, Partner in the Greifswald Mire Centre, GermanyInstitute of Botany and Landscape Ecology, University of Greifswald, Partner in the Greifswald Mire Centre, GermanyRound-leaved sundew (Drosera rotundifolia L.) is a rare bog species that is commonly collected for the European herbal market in the wild, leading to the destruction of its natural populations. The aim of this study is to compare sundew cultivation methods on Sphagnum lawn that meet the requirements of the pharmaceutical industry and could promote a sustainable commercial cultivation. Seed germination and seedling survival of D. rotundifolia were studied in biodegradable cellulose pots, paper mesh bags or directly sown (cultivation methods) in a natural, a semi-natural Sphagnum farming and a greenhouse environment (cultivation conditions); using different seed densities. Drosera was cultivated on Sphagnum palustre or S. papillosum lawn and with or without co-occurring vascular plants. Best seed germination for all cultivation methods was recorded in the greenhouse, most successful were cellulose pots (≤ 26 %). Cellulose pots were also most successful under semi-natural (≤ 15 %) and natural (≤ 7 %) conditions. Lowest seed germination rates (< 1 %) were found for direct sowing under semi-natural and natural conditions, indicating that large-scale cultivation by direct sowing requires large quantities of seeds. High survival rates were observed for all cultivation methods in the second year of growth (mean 70 %). The removal of co-occurring vascular plants showed a positive correlation with the number of Drosera seedlings in the first year and led to a higher number of surviving Drosera plants in the second year. Cultivation of D. rotundifolia in biodegradable cellulose pots and direct seed sowing on Sphagnum lawns meet the cultivation requirements of the pharmaceutical industry and have many ecological benefits compared to collection in the wild.http://mires-and-peat.net/media/map27/map27_15.pdfdroserae herbapaludiculturepharmaceutical requirementssphagnum farmingsundew |
| spellingShingle | Balázs Baranyai Matthias Krebs Claudia Oehmke Hans Joosten Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover Mires and Peat droserae herba paludiculture pharmaceutical requirements sphagnum farming sundew |
| title | Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover |
| title_full | Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover |
| title_fullStr | Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover |
| title_full_unstemmed | Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover |
| title_short | Seed germination and seedling survival of Drosera rotundifolia (L.) cultivated on Sphagnum: Influence of cultivation methods and conditions, seed density, Sphagnum species and vascular plant cover |
| title_sort | seed germination and seedling survival of drosera rotundifolia l cultivated on sphagnum influence of cultivation methods and conditions seed density sphagnum species and vascular plant cover |
| topic | droserae herba paludiculture pharmaceutical requirements sphagnum farming sundew |
| url | http://mires-and-peat.net/media/map27/map27_15.pdf |
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