Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds
Setaria sphacelata is a tropical forage grass, cultivated in diverse regionsdue to its plasticity. Like other summer perennial forages, it has a slow establishment. Hydration-dehydration (HD) pregerminative treatments improve the germination and establishment of many species. The objective of this w...
| Main Authors: | , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2020
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/24889 |
| _version_ | 1811172635098218496 |
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| author | Tamborelli, Melina Rut Fiant, Silvina Elisabeth |
| author_facet | Tamborelli, Melina Rut Fiant, Silvina Elisabeth |
| author_sort | Tamborelli, Melina Rut |
| collection | Portal de Revistas |
| description | Setaria sphacelata is a tropical forage grass, cultivated in diverse regionsdue to its plasticity. Like other summer perennial forages, it has a slow establishment. Hydration-dehydration (HD) pregerminative treatments improve the germination and establishment of many species. The objective of this work was to evaluate the effect of HD with water and potassium nitrate on Setariasphacelata seeds. A factorial treatment design of 2 x 3 x 2 was applied. The first factor was the imbibitory agent: water (A) and potassium nitrate at 2 % (N); the second the imbibition time: 24, 48 and 72 hours; and the third the lot evaluated (two). Four repetitions of 50 seeds per treatment and one control (T) were sown. Germinative energy, germination percentage, fresh and dead seeds (SM) were recorded. Between lots, only significant differences were found in SM. The treatments A24, A48, A72 and N24 were better than T in speed and percentage of germination, while N48 and N72 were similar or inferior. It is concluded that HD treatment with water for 72 hours proved to be the best treatment. Immersion for more than 24 hours in potassium nitrate at 2 % impaired seed viability. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-24889 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2020 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-248892023-04-13T17:29:42Z Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds Efecto de tratamientos pregerminativos de hidratación-deshidratación sobre la viabilidad y germinación de semillas de Setaria sphacelata Tamborelli, Melina Rut Fiant, Silvina Elisabeth forrajera megatérmica priming germinación dormición nitrato de potasio tropical forage priming germination dormancy potassium nitrate Setaria sphacelata is a tropical forage grass, cultivated in diverse regionsdue to its plasticity. Like other summer perennial forages, it has a slow establishment. Hydration-dehydration (HD) pregerminative treatments improve the germination and establishment of many species. The objective of this work was to evaluate the effect of HD with water and potassium nitrate on Setariasphacelata seeds. A factorial treatment design of 2 x 3 x 2 was applied. The first factor was the imbibitory agent: water (A) and potassium nitrate at 2 % (N); the second the imbibition time: 24, 48 and 72 hours; and the third the lot evaluated (two). Four repetitions of 50 seeds per treatment and one control (T) were sown. Germinative energy, germination percentage, fresh and dead seeds (SM) were recorded. Between lots, only significant differences were found in SM. The treatments A24, A48, A72 and N24 were better than T in speed and percentage of germination, while N48 and N72 were similar or inferior. It is concluded that HD treatment with water for 72 hours proved to be the best treatment. Immersion for more than 24 hours in potassium nitrate at 2 % impaired seed viability. Setaria sphacelata es una gramínea forrajera megatérmica cultivada en diversas regiones dada su plasticidad. Al igual que otras forrajeras perennes estivales, tiene lenta implantación. Los tratamientos pregerminativos de hidratación-deshidratación (HD) mejoran la germinación y el establecimiento de muchas especies. El objetivo de este trabajo fue evaluar el efecto de HD con agua y nitrato de potasio en semillas de Setaria sphacelata. Se aplicó un diseño factorial de tratamientos 2 x 3 x 2. Un primer factor fue el agente imbibitorio: agua (A) y nitrato de potasio 2 % (N); el segundo, el tiempo de imbibición: 24, 48 y 72 horas; y el tercero, los lotes evaluados (dos). Se sembraron cuatro repeticiones de 50 semillas por tratamiento y un testigo (T). Se registró energía germinativa, porcentaje de germinación, semillas frescas y muertas (SM). Entrelotes sólo se encontraron diferencias significativas en % SM. Los tratamientos A24, A48, A72 y N24 superaron al T en porcentaje y velocidad de germinación, mientras que los N48 y N72 fueron similares o inferiores. El mejor tratamiento resultó ser HD con agua por 72 horas. La inmersión por más de 24 horas en nitrato de potasio 2 % perjudicó la viabilidad de las semillas. Facultad de Ciencias Agropecuarias 2020-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/24889 10.31047/1668.298x.v37.n2.24889 AgriScientia; Vol. 37 No. 2 (2020); 35-43 AgriScientia; Vol. 37 Núm. 2 (2020); 35-43 1668-298X 10.31047/1668.298x.v37.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/24889/41044 https://revistas.unc.edu.ar/index.php/agris/article/view/24889/32704 Derechos de autor 2020 Melina Rut Tamborelli, Silvina Elisabeth Fiant https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | forrajera megatérmica priming germinación dormición nitrato de potasio tropical forage priming germination dormancy potassium nitrate Tamborelli, Melina Rut Fiant, Silvina Elisabeth Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title | Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title_alt | Efecto de tratamientos pregerminativos de hidratación-deshidratación sobre la viabilidad y germinación de semillas de Setaria sphacelata |
| title_full | Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title_fullStr | Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title_full_unstemmed | Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title_short | Effect of hydration-dehydration pregerminative treatments on the viability and germination of Setaria sphacelata seeds |
| title_sort | effect of hydration dehydration pregerminative treatments on the viability and germination of setaria sphacelata seeds |
| topic | forrajera megatérmica priming germinación dormición nitrato de potasio tropical forage priming germination dormancy potassium nitrate |
| topic_facet | forrajera megatérmica priming germinación dormición nitrato de potasio tropical forage priming germination dormancy potassium nitrate |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/24889 |
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