Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions
ABSTRACT: Recalcitrant seeds are sensitive to desiccation and low storage temperatures, but there is a gradient of recalcitrance between different species and between populations of the same species. Therefore, tolerance to drying and low temperatures, as well as the respiratory rates of seeds, can...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Tecnologia de Sementes
2021-08-01
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| Series: | Journal of Seed Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372021000100117&tlng=en |
| _version_ | 1819005567569494016 |
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| author | Edmir Vicente Lamarca Claudio José Barbedo |
| author_facet | Edmir Vicente Lamarca Claudio José Barbedo |
| author_sort | Edmir Vicente Lamarca |
| collection | DOAJ |
| description | ABSTRACT: Recalcitrant seeds are sensitive to desiccation and low storage temperatures, but there is a gradient of recalcitrance between different species and between populations of the same species. Therefore, tolerance to drying and low temperatures, as well as the respiratory rates of seeds, can be conditioned by the source of the material. The present study aimed to evaluate the relationship among desiccation and low temperature tolerance, and respiratory rates of Inga vera embryos from different regions. The embryos were submitted to three drying levels and incubated for up to fifteen days at -4, -2, 2 and 5 °C. Then, they were evaluated for respiration, germination and electrical conductivity. The embryos tolerated freezing at -4 °C since they were associated with certain levels of drying and a consequent change in the energy status of water. In conclusion, the conditions in which the embryos are formed define their degree of maturation at dispersal, hence their tolerance to desiccation and freezing. |
| first_indexed | 2024-12-20T23:54:51Z |
| format | Article |
| id | doaj.art-0ba321f3bee9421eba2cbace36bf1cfa |
| institution | Directory Open Access Journal |
| issn | 2317-1545 |
| language | English |
| last_indexed | 2024-12-20T23:54:51Z |
| publishDate | 2021-08-01 |
| publisher | Associação Brasileira de Tecnologia de Sementes |
| record_format | Article |
| series | Journal of Seed Science |
| spelling | doaj.art-0ba321f3bee9421eba2cbace36bf1cfa2022-12-21T19:22:44ZengAssociação Brasileira de Tecnologia de SementesJournal of Seed Science2317-15452021-08-014310.1590/2317-1545v43247247Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regionsEdmir Vicente Lamarcahttps://orcid.org/0000-0003-4289-3663Claudio José Barbedohttps://orcid.org/0000-0002-4417-7495ABSTRACT: Recalcitrant seeds are sensitive to desiccation and low storage temperatures, but there is a gradient of recalcitrance between different species and between populations of the same species. Therefore, tolerance to drying and low temperatures, as well as the respiratory rates of seeds, can be conditioned by the source of the material. The present study aimed to evaluate the relationship among desiccation and low temperature tolerance, and respiratory rates of Inga vera embryos from different regions. The embryos were submitted to three drying levels and incubated for up to fifteen days at -4, -2, 2 and 5 °C. Then, they were evaluated for respiration, germination and electrical conductivity. The embryos tolerated freezing at -4 °C since they were associated with certain levels of drying and a consequent change in the energy status of water. In conclusion, the conditions in which the embryos are formed define their degree of maturation at dispersal, hence their tolerance to desiccation and freezing.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372021000100117&tlng=enLeguminosaerecalcitrant seedsstorage |
| spellingShingle | Edmir Vicente Lamarca Claudio José Barbedo Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions Journal of Seed Science Leguminosae recalcitrant seeds storage |
| title | Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions |
| title_full | Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions |
| title_fullStr | Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions |
| title_full_unstemmed | Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions |
| title_short | Respiratory rates and freezing tolerance of embryos of Inga vera Willd. subsp. affinis (DC.) T.D. Penn. from different regions |
| title_sort | respiratory rates and freezing tolerance of embryos of inga vera willd subsp affinis dc t d penn from different regions |
| topic | Leguminosae recalcitrant seeds storage |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372021000100117&tlng=en |
| work_keys_str_mv | AT edmirvicentelamarca respiratoryratesandfreezingtoleranceofembryosofingaverawilldsubspaffinisdctdpennfromdifferentregions AT claudiojosebarbedo respiratoryratesandfreezingtoleranceofembryosofingaverawilldsubspaffinisdctdpennfromdifferentregions |