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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional de Colombia
2022
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=169977433010 https://www.redalyc.org/journal/1699/169977433010/ https://www.redalyc.org/journal/1699/169977433010/html/ https://www.redalyc.org/journal/1699/169977433010/169977433010.epub https://www.redalyc.org/journal/1699/169977433010/movil https://doi.org/10.15446/acag.v71n1.99249 |
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| _version_ | 1866817393239523328 |
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| author | Leomara Pessoa Brito |
| author_facet | Leomara Pessoa Brito |
| contents | Bíometry and pre-germínatíve treatments of seeds from an Amazon endemíc specíes Leomara Pessoa Brito José Dantas Araújo Lacerda Cintia Araújo Soares Franklin Luís Carlos Monteiro Júnior Magno Chagas Souza Áurea Izabel Aguiar Fonseca e Souza Clenes Cunha Lima Marcos Rodrigues Agrociencias mining dormancy scarification Conservation unit Ipomoea cavalcantei This study aimed to verify the impact of different methods of overcoming dormancy in the germination of Ipomoea cavalcantei seeds, in addition to surveying the biometric data of its seeds and fruits. Ripe fruits were randomly collected from the species' habitat, which is a unique ecosystem characterized by small vegetation and iron outcrops. For the biometric analyses, the weight, moisture content, length, width, and thickness of 100 fruits and 100 seeds were determined. To analyse the efficiency of overcoming seed dormancy, six different treatments were tested, including mechanical, physical, and chemical methods, and the resultant germinability, average germination time, and germination speed index were evaluated. Further, in order to estimate the imbibition curve, two treatments were selected to measure the water absorption rate of the seeds until the root emission of at least 50 % of the seeds. The results showed that the I. cavalcantei fruits and seeds biometrically vary in length, width, and thickness, which makes it difficult to obtain standard in situ samples. Moreover, mechanical scarification methods were the most efficient treatments to increase the efficiency of obtaining seedlings of this species. This study can contribute to ex situ conservation strategies for this endemic species, which is threatened by increasing mining activities. 2022 artículo científico 0120-2812 https://www.redalyc.org/articulo.oa?id=169977433010 https://www.redalyc.org/journal/1699/169977433010/ https://www.redalyc.org/journal/1699/169977433010/html/ https://www.redalyc.org/journal/1699/169977433010/169977433010.epub https://www.redalyc.org/journal/1699/169977433010/movil https://doi.org/10.15446/acag.v71n1.99249 en http://www.redalyc.org/revista.oa?id=1699 Acta Agronómica application/pdf Universidad Nacional de Colombia Acta Agronómica (Colombia) Num.1 Vol.71 |
| format | Artículo científico |
| id | redalyc_169977433010 |
| language | en |
| publishDate | 2022 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Bíometry and pre-germínatíve treatments of seeds from an Amazon endemíc specíes Leomara Pessoa Brito Agrociencias mining dormancy scarification Conservation unit Ipomoea cavalcantei Bíometry and pre-germínatíve treatments of seeds from an Amazon endemíc specíes Leomara Pessoa Brito José Dantas Araújo Lacerda Cintia Araújo Soares Franklin Luís Carlos Monteiro Júnior Magno Chagas Souza Áurea Izabel Aguiar Fonseca e Souza Clenes Cunha Lima Marcos Rodrigues Agrociencias mining dormancy scarification Conservation unit Ipomoea cavalcantei This study aimed to verify the impact of different methods of overcoming dormancy in the germination of Ipomoea cavalcantei seeds, in addition to surveying the biometric data of its seeds and fruits. Ripe fruits were randomly collected from the species' habitat, which is a unique ecosystem characterized by small vegetation and iron outcrops. For the biometric analyses, the weight, moisture content, length, width, and thickness of 100 fruits and 100 seeds were determined. To analyse the efficiency of overcoming seed dormancy, six different treatments were tested, including mechanical, physical, and chemical methods, and the resultant germinability, average germination time, and germination speed index were evaluated. Further, in order to estimate the imbibition curve, two treatments were selected to measure the water absorption rate of the seeds until the root emission of at least 50 % of the seeds. The results showed that the I. cavalcantei fruits and seeds biometrically vary in length, width, and thickness, which makes it difficult to obtain standard in situ samples. Moreover, mechanical scarification methods were the most efficient treatments to increase the efficiency of obtaining seedlings of this species. This study can contribute to ex situ conservation strategies for this endemic species, which is threatened by increasing mining activities. 2022 artículo científico 0120-2812 https://www.redalyc.org/articulo.oa?id=169977433010 https://www.redalyc.org/journal/1699/169977433010/ https://www.redalyc.org/journal/1699/169977433010/html/ https://www.redalyc.org/journal/1699/169977433010/169977433010.epub https://www.redalyc.org/journal/1699/169977433010/movil https://doi.org/10.15446/acag.v71n1.99249 en http://www.redalyc.org/revista.oa?id=1699 Acta Agronómica application/pdf Universidad Nacional de Colombia Acta Agronómica (Colombia) Num.1 Vol.71 |
| title | Bíometry and pre-germínatíve treatments of seeds from an Amazon endemíc specíes |
| topic | Agrociencias mining dormancy scarification Conservation unit Ipomoea cavalcantei |
| url | https://www.redalyc.org/articulo.oa?id=169977433010 https://www.redalyc.org/journal/1699/169977433010/ https://www.redalyc.org/journal/1699/169977433010/html/ https://www.redalyc.org/journal/1699/169977433010/169977433010.epub https://www.redalyc.org/journal/1699/169977433010/movil https://doi.org/10.15446/acag.v71n1.99249 |