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Seed traits, seed viability and germination rates of seeds collected from 12 natural Juniper (Juniperus communis) populations in the UK, 2023-2025

These data describe the rates of filled, viable and germinating seeds from over 60 maternal juniper trees from across the UK. 12 populations from the Scottish Highlands to Southern English Downs were sampled in Fall 2023. Four different methods of seed viability testing were applied, and germination was monitored for over a year in response to nine different combinations of pretreatments and stratifications. Reproducible analyses and visualizations from an associated study are provided with an R project. This trial was conducted to determine the optimal treatment for juniper stratification and to quantify the variability in seedlot quality/viability among populations. Full details about this dataset can be found at https://doi.org/10.5285/64607f86-0228-4a03-9d87-6e36435028a1

Simple

Date (Publication)
2025-09-25
Identifier
https://catalogue.ceh.ac.uk/id/64607f86-0228-4a03-9d87-6e36435028a1
Identifier
doi: / 10.5285/64607f86-0228-4a03-9d87-6e36435028a1
Other citation details
Baker, J., Cottrell, J., Ennos, R., Perry, A., Cavers, S. (2025). Seed traits, seed viability and germination rates of seeds collected from 12 natural Juniper (Juniperus communis) populations in the UK, 2023-2025. NERC EDS Environmental Information Data Centre 10.5285/64607f86-0228-4a03-9d87-6e36435028a1
Point of contact
  UK Centre for Ecology & Hydrology - James Baker
https://orcid.org/0009-0003-0514-4644
Author
  UK Centre for Ecology & Hydrology - Baker, J.
https://orcid.org/0009-0003-0514-4644
Author
  Forest Research - Cottrell, J.
Author
  University of Edinburgh - Ennos, R.
Author
  UK Centre for Ecology & Hydrology - Perry, A.
Author
  UK Centre for Ecology & Hydrology - Cavers, S.
Owner
  UK Centre for Ecology & Hydrology
Publisher
  NERC EDS Environmental Information Data Centre
Custodian
  NERC EDS Environmental Information Data Centre
GEMET - INSPIRE themes, version 1.0
  • Species Distribution
GEMET - Concepts, version 4.1.3
  • germination
  • stratification
  • seed (biology)
  • plant population
  • conservation
  • conservation of species
  • forest conservation
  • forest biodiversity
Keywords
  • Evolutionary ecology
  • Common Juniper
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Use constraints
otherRestrictions Other restrictions
Other constraints
This resource is available under the terms of the Open Government Licence
Use constraints
otherRestrictions Other restrictions
Other constraints
If you reuse this data, you should cite: Baker, J., Cottrell, J., Ennos, R., Perry, A., Cavers, S. (2025). Seed traits, seed viability and germination rates of seeds collected from 12 natural Juniper (Juniperus communis) populations in the UK, 2023-2025. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/64607f86-0228-4a03-9d87-6e36435028a1
Spatial representation type
textTable Text, table
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Biota
  • Environment
Begin date
2023-01-01
End date
2025-12-31
N
S
E
W
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Unique resource identifier
OSGB 1936 / British National Grid
Distribution format
  • Comma-separated values (CSV) ()

Distributor
  NERC EDS Environmental Information Data Centre
OnLine resource
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Supporting information

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Hierarchy level
dataset Dataset
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dataset

Conformance result

Date (Publication)
2010-12-08
Statement
Berries were collected from populations in fall 2023, weighed, and inspected for parasitism. Seeds were extracted with a food processor; filled and empty seeds were separated using the float test, then surface sanitized and dried. Dried seeds were weighed and stored at 4 degrees C until used. Seeds were then treated with one of two different pretreatments, consisting of soaking them in water or a 1% Citric Acid solution for 48 hours. A Control group was also included that was not pretreated. Next, seeds were subject to one of 4 different thermal stratification treatments: A warm stratification followed by a cold stratification; just a warm stratification; just a cold stratification; and a control without a stratification treatment. Germination was then monitored for over a year, and the differences among seedlots, populations and regions of the UK were quantified. Additional seedlot quality and seed viability data were also collected for all 60 seedlots included in the germination trial. The field cut test (the proportion of seeds that are visibly filled with healthy embryonic tissue when bisected), the estimated numbers of filled and empty seeds from the float test, tetrazolium chloride (TZ) staining and X-ray viability are each applied to each seedlot. These results are then compared and contrasted to evaluate their relative accuracy and precision.
File identifier
64607f86-0228-4a03-9d87-6e36435028a1 XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2025-11-13T16:19:38
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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Spatial extent

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Keywords

GEMET - INSPIRE themes, version 1.0
Species Distribution

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