Evaluation under grazing of pasture germplasm in advanced stages of selection
Evaluation under grazing is an important stage in the evaluation of pasture germplasm for the selection of potential new cultivars. Entry to this stage of evaluation presupposes an already existing adaptation to the climatic and edaphic conditions of the relevant area or areas, high yield, resistanc...
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| Format: | Book Chapter |
| Language: | Inglés |
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International Center for Tropical Agriculture
1993
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| Online Access: | https://hdl.handle.net/10568/82071 |
| _version_ | 1855517019038810112 |
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| author | Jones, Raymond J. |
| author_browse | Jones, Raymond J. |
| author_facet | Jones, Raymond J. |
| author_sort | Jones, Raymond J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Evaluation under grazing is an important stage in the evaluation of pasture germplasm for the selection of potential new cultivars. Entry to this stage of evaluation presupposes an already existing adaptation to the climatic and edaphic conditions of the relevant area or areas, high yield, resistance to pests and diseases, and a clear-cut objective for the eventual use of the germplasm under evaluation.
Common grazing of all accessions under evaluation is usual at this stage but care needs to be taken to avoid bias. Suggestions for avoiding bias include grouping accessions of similar plant form and including them in separate experiments, the separation of fertilizer treatment variables, the use of two or more grazing regimes, and the use of individually grazed plots.
Practical problems concerning number of sites, strategies to use, duration of experiments, and pasture measurements are discussed. |
| format | Book Chapter |
| id | CGSpace82071 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1993 |
| publishDateRange | 1993 |
| publishDateSort | 1993 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace820712025-11-05T16:55:01Z Evaluation under grazing of pasture germplasm in advanced stages of selection Jones, Raymond J. feed crops germplasm evaluation methods grazing pilot farms plantas forrajeras germoplasma evaluación métodos pastoreo fincas experimentales Evaluation under grazing is an important stage in the evaluation of pasture germplasm for the selection of potential new cultivars. Entry to this stage of evaluation presupposes an already existing adaptation to the climatic and edaphic conditions of the relevant area or areas, high yield, resistance to pests and diseases, and a clear-cut objective for the eventual use of the germplasm under evaluation. Common grazing of all accessions under evaluation is usual at this stage but care needs to be taken to avoid bias. Suggestions for avoiding bias include grouping accessions of similar plant form and including them in separate experiments, the separation of fertilizer treatment variables, the use of two or more grazing regimes, and the use of individually grazed plots. Practical problems concerning number of sites, strategies to use, duration of experiments, and pasture measurements are discussed. 1993 2017-06-20T09:00:48Z 2017-06-20T09:00:48Z Book Chapter https://hdl.handle.net/10568/82071 en Open Access application/pdf International Center for Tropical Agriculture Jones, Raymond J.. 1993. Evaluation under grazing of pasture germplasm in advanced stages of selection . In: Paladines M., Osvaldo L.; Lascano, Carlos E. (eds.). Forage germplasm under small-plot grazing: Evaluation of methodologies: Proceedings of a workshop held in Cali, Colombia, 22-24 September 1982 . Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. p. 171-191. (CIAT publication no. 210) |
| spellingShingle | feed crops germplasm evaluation methods grazing pilot farms plantas forrajeras germoplasma evaluación métodos pastoreo fincas experimentales Jones, Raymond J. Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title | Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title_full | Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title_fullStr | Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title_full_unstemmed | Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title_short | Evaluation under grazing of pasture germplasm in advanced stages of selection |
| title_sort | evaluation under grazing of pasture germplasm in advanced stages of selection |
| topic | feed crops germplasm evaluation methods grazing pilot farms plantas forrajeras germoplasma evaluación métodos pastoreo fincas experimentales |
| url | https://hdl.handle.net/10568/82071 |
| work_keys_str_mv | AT jonesraymondj evaluationundergrazingofpasturegermplasminadvancedstagesofselection |