CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE
<p>The conservation of Araucaria seeds is widely compromised in function of their recalcitrant feature, which hampers the planning of recovery actions of the degraded populations. Therefore, the objective of this study was to monitor the physiological changes in Araucaria seeds under controlle...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Portuguese |
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Universidade Federal de Santa Maria
2014-12-01
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| Series: | Ciência Florestal |
| Subjects: | |
| Online Access: | http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/16586 |
| _version_ | 1819040299806097408 |
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| author | Cristhyane Garcia Cileide Maria Medeiros Coelho Marcelo Maraschin Luciana Magda de Oliveira |
| author_facet | Cristhyane Garcia Cileide Maria Medeiros Coelho Marcelo Maraschin Luciana Magda de Oliveira |
| author_sort | Cristhyane Garcia |
| collection | DOAJ |
| description | <p>The conservation of Araucaria seeds is widely compromised in function of their recalcitrant feature, which hampers the planning of recovery actions of the degraded populations. Therefore, the objective of this study was to monitor the physiological changes in Araucaria seeds under controlled storage conditions, in order to get insights as to the viability and vigor conservation. The physiological quality of freshly harvested seeds was evaluated and every 60 days throughout the 180 days-storage period in laboratory ambient without thermal control, refrigerator (5 ° C), and freezer (-18 ° C) until the final period of 180 days. After each sampling period, the seed viability (germination and tetrazolium tests) and vigor (artificial aging, germination speed index – IVG and electrical conductivity) were assessed. A reduction in the normal seedlings percentage was noticed over the period of storage of Araucaria seeds. The conservation in freezer and the lack of thermal control caused a complete loss of the seed viability at 60 and 180 days of storage, respectively. However, the refrigerator storage promoted the conservation of seed viability, with 64% germination after 180 days of storage, an event associated with the reduction of the metabolic activity of seeds. Based on the viability and vigor tests, it was concluded that storage in refrigerator provided longer storage periods to Araucaria seeds in comparison to the other storage conditions herein studied.</p> |
| first_indexed | 2024-12-21T09:06:54Z |
| format | Article |
| id | doaj.art-244f2b4acf6b4f359c3025850f707de0 |
| institution | Directory Open Access Journal |
| issn | 0103-9954 1980-5098 |
| language | Portuguese |
| last_indexed | 2024-12-21T09:06:54Z |
| publishDate | 2014-12-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Florestal |
| spelling | doaj.art-244f2b4acf6b4f359c3025850f707de02022-12-21T19:09:19ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982014-12-0124485786610.5902/19805098165868951CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGECristhyane GarciaCileide Maria Medeiros CoelhoMarcelo MaraschinLuciana Magda de Oliveira<p>The conservation of Araucaria seeds is widely compromised in function of their recalcitrant feature, which hampers the planning of recovery actions of the degraded populations. Therefore, the objective of this study was to monitor the physiological changes in Araucaria seeds under controlled storage conditions, in order to get insights as to the viability and vigor conservation. The physiological quality of freshly harvested seeds was evaluated and every 60 days throughout the 180 days-storage period in laboratory ambient without thermal control, refrigerator (5 ° C), and freezer (-18 ° C) until the final period of 180 days. After each sampling period, the seed viability (germination and tetrazolium tests) and vigor (artificial aging, germination speed index – IVG and electrical conductivity) were assessed. A reduction in the normal seedlings percentage was noticed over the period of storage of Araucaria seeds. The conservation in freezer and the lack of thermal control caused a complete loss of the seed viability at 60 and 180 days of storage, respectively. However, the refrigerator storage promoted the conservation of seed viability, with 64% germination after 180 days of storage, an event associated with the reduction of the metabolic activity of seeds. Based on the viability and vigor tests, it was concluded that storage in refrigerator provided longer storage periods to Araucaria seeds in comparison to the other storage conditions herein studied.</p>http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/16586araucáriaconservação de sementespotencial fisiológicosementes recalcitrantes. |
| spellingShingle | Cristhyane Garcia Cileide Maria Medeiros Coelho Marcelo Maraschin Luciana Magda de Oliveira CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE Ciência Florestal araucária conservação de sementes potencial fisiológico sementes recalcitrantes. |
| title | CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE |
| title_full | CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE |
| title_fullStr | CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE |
| title_full_unstemmed | CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE |
| title_short | CONSERVATION OF THE VIABILITY AND VIGOR OF <i>Araucaria angustifolia</i> (Bert.) O. Kuntze SEEDS DURING THE STORAGE |
| title_sort | conservation of the viability and vigor of i araucaria angustifolia i bert o kuntze seeds during the storage |
| topic | araucária conservação de sementes potencial fisiológico sementes recalcitrantes. |
| url | http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/16586 |
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