Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires
In mountain environments of Córdoba (Argentina), where tourist activity predominates and livestock activity is based on native species, the fires that affect the area compromise the recovery of the natural landscape. The objective of this work was to evaluate the germination capacity of Eustachys re...
| Main Authors: | , |
|---|---|
| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2021
|
| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/28090 |
| _version_ | 1841854048268976128 |
|---|---|
| author | Martinat, Jimena Elisa Gil, Silvia Patricia Gil, Silvia Patricia |
| author_facet | Martinat, Jimena Elisa Gil, Silvia Patricia Gil, Silvia Patricia |
| author_sort | Martinat, Jimena Elisa |
| collection | Portal de Revistas |
| description | In mountain environments of Córdoba (Argentina), where tourist activity predominates and livestock activity is based on native species, the fires that affect the area compromise the recovery of the natural landscape. The objective of this work was to evaluate the germination capacity of Eustachys retusa and Schizachyrium condensatum, native forages, subjected to pre-germination treatments and fire factors. Three repetitions were performed for each seed treatment: potassium nitrate, cold, smoke and heat shock tests. Germination was assessed for 21 days. A favorable increase in germination was observed in the 90 °C treatments for S. condensatum and a decrease in germination of E. retusa in cold and 120 °C for 10 min treatments. In the rest of the treatments carried out there were no significant differences with the control. In none of the treatments S. condensatum reached 50 % germination, while E. retusa was always higher than 70 %. We conclude that the seeds of E. retusa and S. condensatum tolerate low or moderate fire temperatures and are capable of germinating at 120 °C. E. retusa has advantages for colonizing burned sites in the Cordoba highlands. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-28090 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2021 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-280902022-03-22T16:44:42Z Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires Capacidad germinativa de Poaceae nativas de las sierras de Córdoba (Argentina) afectadas por incendios Martinat, Jimena Elisa Gil, Silvia Patricia Gil, Silvia Patricia propagation heat shock smoke Eustachys retusa Schizachyrium condensatum propagación choque térmico humo Eustachys retusa Schizachyrium condensatum In mountain environments of Córdoba (Argentina), where tourist activity predominates and livestock activity is based on native species, the fires that affect the area compromise the recovery of the natural landscape. The objective of this work was to evaluate the germination capacity of Eustachys retusa and Schizachyrium condensatum, native forages, subjected to pre-germination treatments and fire factors. Three repetitions were performed for each seed treatment: potassium nitrate, cold, smoke and heat shock tests. Germination was assessed for 21 days. A favorable increase in germination was observed in the 90 °C treatments for S. condensatum and a decrease in germination of E. retusa in cold and 120 °C for 10 min treatments. In the rest of the treatments carried out there were no significant differences with the control. In none of the treatments S. condensatum reached 50 % germination, while E. retusa was always higher than 70 %. We conclude that the seeds of E. retusa and S. condensatum tolerate low or moderate fire temperatures and are capable of germinating at 120 °C. E. retusa has advantages for colonizing burned sites in the Cordoba highlands. En ambientes serranos de Córdoba (Argentina) donde predomina la actividad turística y ganadera basada en especies forrajeras nativas, los incendios que afectan la zona comprometen la recuperación del paisaje natural. El objetivo de este trabajo fue evaluar la capacidad germinativa de Eustachys retusa y Schizachyrium condensatum, forrajeras nativas, sometidas a tratamientos pregerminativos y a factores del fuego. A sus semillas se les aplicaron tres repeticiones de los siguientes tratamientos: nitrato de potasio, frío, humo y choques térmicos. Se evaluó la germinación durante 21 días. Se observó un incremento favorable de la germinación en los tratamientos de 90 °C para S. condensatum y una disminución en la germinación de E. retusa en los tratamientos de frío y 120 °C durante 10 min. En el resto de los tratamientos realizados no hubo diferencias significativas con el testigo. En ninguno de los tratamientos S. condensatum alcanzó el 50 % de germinación, mientras que E. retusa resultó siempre mayor al 70 %. Se concluye que las semillas de E. retusa y S. condensatum toleran temperaturas de incendios rasantes o moderados y son capaces de germinar a 120 °C. E. retusa presenta ventajas para colonizar sitios quemados de las serranías cordobesas. Facultad de Ciencias Agropecuarias 2021-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/28090 10.31047/1668.298x.v38.n2.28090 AgriScientia; Vol. 38 No. 2 (2021); 41-51 AgriScientia; Vol. 38 Núm. 2 (2021); 41-51 1668-298X 10.31047/1668.298x.v38.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/28090/36806 https://revistas.unc.edu.ar/index.php/agris/article/view/28090/37365 Derechos de autor 2021 Jimena Elisa Martinat, Patricia Gil https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | propagation heat shock smoke Eustachys retusa Schizachyrium condensatum propagación choque térmico humo Eustachys retusa Schizachyrium condensatum Martinat, Jimena Elisa Gil, Silvia Patricia Gil, Silvia Patricia Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title | Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title_alt | Capacidad germinativa de Poaceae nativas de las sierras de Córdoba (Argentina) afectadas por incendios |
| title_full | Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title_fullStr | Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title_full_unstemmed | Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title_short | Reproductive capacity of native Poaceae from the mountains of Córdoba (Argentina) affected by fires |
| title_sort | reproductive capacity of native poaceae from the mountains of cordoba argentina affected by fires |
| topic | propagation heat shock smoke Eustachys retusa Schizachyrium condensatum propagación choque térmico humo Eustachys retusa Schizachyrium condensatum |
| topic_facet | propagation heat shock smoke Eustachys retusa Schizachyrium condensatum propagación choque térmico humo Eustachys retusa Schizachyrium condensatum |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/28090 |
| work_keys_str_mv | AT martinatjimenaelisa reproductivecapacityofnativepoaceaefromthemountainsofcordobaargentinaaffectedbyfires AT gilsilviapatricia reproductivecapacityofnativepoaceaefromthemountainsofcordobaargentinaaffectedbyfires AT gilsilviapatricia reproductivecapacityofnativepoaceaefromthemountainsofcordobaargentinaaffectedbyfires AT martinatjimenaelisa capacidadgerminativadepoaceaenativasdelassierrasdecordobaargentinaafectadasporincendios AT gilsilviapatricia capacidadgerminativadepoaceaenativasdelassierrasdecordobaargentinaafectadasporincendios AT gilsilviapatricia capacidadgerminativadepoaceaenativasdelassierrasdecordobaargentinaafectadasporincendios |