LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS
ABSTRACT Understanding the loss of desiccation tolerance is of great importance in seed technology for its implications in the development of strategies for seed conservation and seedling production. In the present work, the loss of desiccation tolerance was studied in seeds of tree species Bowdichi...
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| Format: | Article |
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Sociedade de Investigações Florestais
2018-11-01
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| Series: | Revista Árvore |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000500202&lng=en&tlng=en |
| _version_ | 1819056319929253888 |
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| author | Wilson Vicente Souza Pereira José Marcio Rocha Faria Olivia Alvina Oliveira Tonetti Anderson Cleiton José Lucas Amaral de Melo |
| author_facet | Wilson Vicente Souza Pereira José Marcio Rocha Faria Olivia Alvina Oliveira Tonetti Anderson Cleiton José Lucas Amaral de Melo |
| author_sort | Wilson Vicente Souza Pereira |
| collection | DOAJ |
| description | ABSTRACT Understanding the loss of desiccation tolerance is of great importance in seed technology for its implications in the development of strategies for seed conservation and seedling production. In the present work, the loss of desiccation tolerance was studied in seeds of tree species Bowdichia virgilioides, Libidibia ferrea, Cedrela fissilis, Enterolobium contortisiliquum, Handroanthus impetiginosus, and Piptadenia gonoacantha. The seeds were collected in the region of Lavras, MG, and subjected to desiccation experiments individually for each species. Imbibition curve was created for each species by measuring seed weight at regular intervals under germination conditions. Based on this information, the seeds were allowed to imbibe for a time inferred from the imbibition curve, and then allowed to dry until reaching the initial water content measured before the imbibition begun. Then, the seeds were rehydrated, and those that developed into normal seedlings were considered desiccation-tolerant. The loss of seed desiccation tolerance followed a specific pattern in each studied species, but none of the species was tolerant to desiccation after radicle protrusion. A drastic decrease in desiccation tolerance was observed in P. gonoacantha seeds at the beginning of the germination process. Under the conditions implemented in this study, the loss of desiccation tolerance in all species started at the beginning of the germination process. These results have implications in both theoretical studies (seed priming) and the practice (in seedling production). |
| first_indexed | 2024-12-21T13:21:32Z |
| format | Article |
| id | doaj.art-6d536335aab04d7f8f0e777db712710d |
| institution | Directory Open Access Journal |
| issn | 1806-9088 |
| language | English |
| last_indexed | 2024-12-21T13:21:32Z |
| publishDate | 2018-11-01 |
| publisher | Sociedade de Investigações Florestais |
| record_format | Article |
| series | Revista Árvore |
| spelling | doaj.art-6d536335aab04d7f8f0e777db712710d2022-12-21T19:02:34ZengSociedade de Investigações FlorestaisRevista Árvore1806-90882018-11-0142510.1590/1806-90882018000500003S0100-67622018000500202LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONSWilson Vicente Souza PereiraJosé Marcio Rocha FariaOlivia Alvina Oliveira TonettiAnderson Cleiton JoséLucas Amaral de MeloABSTRACT Understanding the loss of desiccation tolerance is of great importance in seed technology for its implications in the development of strategies for seed conservation and seedling production. In the present work, the loss of desiccation tolerance was studied in seeds of tree species Bowdichia virgilioides, Libidibia ferrea, Cedrela fissilis, Enterolobium contortisiliquum, Handroanthus impetiginosus, and Piptadenia gonoacantha. The seeds were collected in the region of Lavras, MG, and subjected to desiccation experiments individually for each species. Imbibition curve was created for each species by measuring seed weight at regular intervals under germination conditions. Based on this information, the seeds were allowed to imbibe for a time inferred from the imbibition curve, and then allowed to dry until reaching the initial water content measured before the imbibition begun. Then, the seeds were rehydrated, and those that developed into normal seedlings were considered desiccation-tolerant. The loss of seed desiccation tolerance followed a specific pattern in each studied species, but none of the species was tolerant to desiccation after radicle protrusion. A drastic decrease in desiccation tolerance was observed in P. gonoacantha seeds at the beginning of the germination process. Under the conditions implemented in this study, the loss of desiccation tolerance in all species started at the beginning of the germination process. These results have implications in both theoretical studies (seed priming) and the practice (in seedling production).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000500202&lng=en&tlng=enDesiccation sensitivityTree speciesGermination |
| spellingShingle | Wilson Vicente Souza Pereira José Marcio Rocha Faria Olivia Alvina Oliveira Tonetti Anderson Cleiton José Lucas Amaral de Melo LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS Revista Árvore Desiccation sensitivity Tree species Germination |
| title | LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS |
| title_full | LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS |
| title_fullStr | LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS |
| title_full_unstemmed | LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS |
| title_short | LOSS OF DESICCATION TOLERANCE IN SEEDS OF TREE SPECIES DURING GERMINATION: THEORETICAL AND PRACTICAL IMPLICATIONS |
| title_sort | loss of desiccation tolerance in seeds of tree species during germination theoretical and practical implications |
| topic | Desiccation sensitivity Tree species Germination |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622018000500202&lng=en&tlng=en |
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