Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards
The frequency at which seed accessions are monitored for viability during storage in genebanks (reciprocal of the monitoring interval) must balance timely detection of loss in viability against monitoring cost (seed depletion and staff resource). Up to three decades of genebank seed germination test...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/105829 |
| _version_ | 1855521268404584448 |
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| author | Ellis, R.H. Nasehzadeh, M. Hanson, Jean Ndiwa, Nicholas N. Woldemariam, Yeshi |
| author_browse | Ellis, R.H. Hanson, Jean Nasehzadeh, M. Ndiwa, Nicholas N. Woldemariam, Yeshi |
| author_facet | Ellis, R.H. Nasehzadeh, M. Hanson, Jean Ndiwa, Nicholas N. Woldemariam, Yeshi |
| author_sort | Ellis, R.H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The frequency at which seed accessions are monitored for viability during storage in genebanks (reciprocal of the monitoring interval) must balance timely detection of loss in viability against monitoring cost (seed depletion and staff resource). Up to three decades of genebank seed germination test results of diverse grasses maintained in the International Livestock Research Institute's medium-term store (circa 8 °C with 5% moisture content) were evaluated in an attempt to derive recommendations on seed accession monitoring intervals. Six different patterns of variation in germination test results during storage were found amongst seed lots by probit analysis within 29 genera: no trend (6 genera); contrasting trends (positive to negative) (3); common slope of loss in viability (11); common slope of increase in ability to germinate (6); common loss in viability (2); common increase in ability to germinate (1). Recommended monitoring intervals were calculated from the fitted survival curves for each of the 13 genera showing uniformity in loss in viability: the medium-term store expectation of 2–10 years' maintenance of high viability was met in eight genera, whilst four provided greater survival periods. Furthermore, the 13 genera showing either no trend over period of storage or an increase in ability to germinate during storage also exceeded the expectations for survival periods in medium-term stores. Advice is provided on calculating monitoring intervals for different combinations of initial viability with a wide range of potential regeneration standards. |
| format | Journal Article |
| id | CGSpace105829 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1058292024-10-03T07:40:51Z Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards Ellis, R.H. Nasehzadeh, M. Hanson, Jean Ndiwa, Nicholas N. Woldemariam, Yeshi seeds crops forage animal feeding The frequency at which seed accessions are monitored for viability during storage in genebanks (reciprocal of the monitoring interval) must balance timely detection of loss in viability against monitoring cost (seed depletion and staff resource). Up to three decades of genebank seed germination test results of diverse grasses maintained in the International Livestock Research Institute's medium-term store (circa 8 °C with 5% moisture content) were evaluated in an attempt to derive recommendations on seed accession monitoring intervals. Six different patterns of variation in germination test results during storage were found amongst seed lots by probit analysis within 29 genera: no trend (6 genera); contrasting trends (positive to negative) (3); common slope of loss in viability (11); common slope of increase in ability to germinate (6); common loss in viability (2); common increase in ability to germinate (1). Recommended monitoring intervals were calculated from the fitted survival curves for each of the 13 genera showing uniformity in loss in viability: the medium-term store expectation of 2–10 years' maintenance of high viability was met in eight genera, whilst four provided greater survival periods. Furthermore, the 13 genera showing either no trend over period of storage or an increase in ability to germinate during storage also exceeded the expectations for survival periods in medium-term stores. Advice is provided on calculating monitoring intervals for different combinations of initial viability with a wide range of potential regeneration standards. 2019-03 2019-11-20T07:26:18Z 2019-11-20T07:26:18Z Journal Article https://hdl.handle.net/10568/105829 en Open Access Springer Ellis, R.H., Nasehzadeh, M., Hanson, J., Ndiwa, N. and Woldemariam, Y. 2019. Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards. Genetic Resources and Crop Evolution 66(3):723–734. |
| spellingShingle | seeds crops forage animal feeding Ellis, R.H. Nasehzadeh, M. Hanson, Jean Ndiwa, Nicholas N. Woldemariam, Yeshi Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title | Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title_full | Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title_fullStr | Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title_full_unstemmed | Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title_short | Medium-term seed storage of diverse genera of forage grasses, evidence-based genebank monitoring intervals, and regeneration standards |
| title_sort | medium term seed storage of diverse genera of forage grasses evidence based genebank monitoring intervals and regeneration standards |
| topic | seeds crops forage animal feeding |
| url | https://hdl.handle.net/10568/105829 |
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