Seeds of South Australia
Eleocharis geniculata (Cyperaceae)
Spike-rush
List of species for Eleocharis
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Herbarium region:
Lake Eyre
NRM region:
South Australian Arid Lands
IBRA region
Witjira (STP06)Stony Plains
 Endangered   (IUCN: EN D)   [Dalhousie only; tourists/soap - threats]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Eleocharis]
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Jul-160%NANA 30% hydrogen peroxide 20 min, water rinse, 500 mg/L gibberellic acid 24 h;
1% agar;
Incubated under winter conditions
Jul-160%NANA 30% hydrogen peroxide 20 min, water rinse;
1% agar;
Incubated under winter conditions
Jul-160%NANA 30%hydrogen peroxide 20 min, water rinse, 10% smoke water 24 h;
1% agar;
Incubated under winter conditions
Jul-160%NANA dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse, 10% smoke water + 500 mg/L gibberellic acid 24 h;
1% agar;
Incubated under winter conditions
Jul-160%NANA dry heat 90°C oven 15 min, 30% hydrogen peroxide 20 min, water rinse;
1% agar;
Incubated under winter conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)