Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa
Forage grass species of the genus Urochloa play a crucial role in tropical and subtropical ecosystems, particularly in Latin America, where they are important for livestock production due to their adaptability and productivity. Despite their economic importance, there are no definitive conclusions a...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Springer
2025
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/170289 |
| _version_ | 1855514466194554880 |
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| author | Salazar, Daniel E. Santos-M, Luis Guillermo Guzzon, Filippo Wenzl, Peter |
| author_browse | Guzzon, Filippo Salazar, Daniel E. Santos-M, Luis Guillermo Wenzl, Peter |
| author_facet | Salazar, Daniel E. Santos-M, Luis Guillermo Guzzon, Filippo Wenzl, Peter |
| author_sort | Salazar, Daniel E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Forage grass species of the genus Urochloa play a crucial role in tropical and subtropical ecosystems, particularly in Latin America, where they are important for livestock production due to their adaptability and productivity. Despite their economic importance, there are no definitive conclusions about dormancy-breaking methods in this genus. This study examined 34 seed lots of U. brizantha, U. ruziziensis, U. decumbens, and U. humidicola, conserved at the International Center for Tropical Agriculture (CIAT) genebank for different periods (from one to 22 years in storage). Seeds of all four species showed high viability for up to 21–22 years of long-term storage, estimated by tetrazolium tests. Additionally, removal of seed covering structures significantly promoted final germination, highlighting the efficacy of this simple method to break seed dormancy in U. brizantha, U. ruziziensis, and U. decumbens, with germination results not statistically different from tetrazolium tests for these three species. However, this method was less efficient in achieving high germination percentages for seeds of U. humidicola, and further research is needed to identify efficient dormancy breaking methods for this species. Finally, this study found that gibberellic acid treatments did not promote seed germination in any of the four evaluated species. |
| format | Journal Article |
| id | CGSpace170289 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1702892025-11-11T17:40:21Z Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa Salazar, Daniel E. Santos-M, Luis Guillermo Guzzon, Filippo Wenzl, Peter plant genetic resources forage seed dormancy viability tests Forage grass species of the genus Urochloa play a crucial role in tropical and subtropical ecosystems, particularly in Latin America, where they are important for livestock production due to their adaptability and productivity. Despite their economic importance, there are no definitive conclusions about dormancy-breaking methods in this genus. This study examined 34 seed lots of U. brizantha, U. ruziziensis, U. decumbens, and U. humidicola, conserved at the International Center for Tropical Agriculture (CIAT) genebank for different periods (from one to 22 years in storage). Seeds of all four species showed high viability for up to 21–22 years of long-term storage, estimated by tetrazolium tests. Additionally, removal of seed covering structures significantly promoted final germination, highlighting the efficacy of this simple method to break seed dormancy in U. brizantha, U. ruziziensis, and U. decumbens, with germination results not statistically different from tetrazolium tests for these three species. However, this method was less efficient in achieving high germination percentages for seeds of U. humidicola, and further research is needed to identify efficient dormancy breaking methods for this species. Finally, this study found that gibberellic acid treatments did not promote seed germination in any of the four evaluated species. 2025-06 2025-01-29T07:07:23Z 2025-01-29T07:07:23Z Journal Article https://hdl.handle.net/10568/170289 en Open Access application/pdf Springer Salazar, D.E.; Santos-M, L.G.; Guzzon, F.; Wenzl, P. (2025) Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa. Genetic Resources and Crop Evolution. ISSN: 0925-9864 |
| spellingShingle | plant genetic resources forage seed dormancy viability tests Salazar, Daniel E. Santos-M, Luis Guillermo Guzzon, Filippo Wenzl, Peter Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title | Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title_full | Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title_fullStr | Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title_full_unstemmed | Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title_short | Effects of covering structures and gibberellic acid in promoting seed germination of Urochloa |
| title_sort | effects of covering structures and gibberellic acid in promoting seed germination of urochloa |
| topic | plant genetic resources forage seed dormancy viability tests |
| url | https://hdl.handle.net/10568/170289 |
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