Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia
“Jacaranda” (Jacaranda mimosifolia) and "mezquite” (Prosopis laevigata) are timber species that generally present problems with regard to the germination of their seeds in natural conditions, since they have a very hard and impermeable cover. Different treatments have been applied to improve th...
| Autores principales: | , , , , |
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| Formato: | Online |
| Lenguaje: | eng |
| Publicado: |
Instituto de Ecología, A.C.
2019
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| Acceso en línea: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2521665 |
| _version_ | 1799769349925371904 |
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| author | Costilla-Hermosillo, María Guadalupe Ortiz-Morales, Martín Loza-Cornejo, Sofía Frausto-Reyes, Claudio Ali Metwally, Sami |
| author_facet | Costilla-Hermosillo, María Guadalupe Ortiz-Morales, Martín Loza-Cornejo, Sofía Frausto-Reyes, Claudio Ali Metwally, Sami |
| author_sort | Costilla-Hermosillo, María Guadalupe |
| collection | MYB |
| description | “Jacaranda” (Jacaranda mimosifolia) and "mezquite” (Prosopis laevigata) are timber species that generally present problems with regard to the germination of their seeds in natural conditions, since they have a very hard and impermeable cover. Different treatments have been applied to improve the germinative response of both species with unfavorable results. This study aimed to know the effect of the pre-sowing laser biostimulation on germination and seedlings growth of these species. The seeds were biostimulated with a He-Ne laser (632 nm, 10 mW). Considering three replications of 50 seeds for each species, five irradiation treatments were applied (30 s, 60 s, 90 s, 120 s, 150 s) and control. The results for mezquite demonstrated that the highest number of germinated seeds (96%) was obtained with the treatments 90 s and 150 s; in contrast, the control seeds showed a lower germination percentage (16%). Additionally, the 30 s treatment produced a positive effect on the growth of the root, and it was different (p < 0.05) to the remaining treatments and the control. For Jacaranda, there were significant statistical differences (p < 0.05) between the control and the different treatments. 29% of seed germination occurs without any treatment. However, for 90 s and 120 s, germination is induced in a relatively high percent (97%-99%). For both species, the best treatment was 120 s, since higher values were recorded for all the morphological variables. It is concluded that laser biostimulation can produce beneficial effects on the germination of seeds and seedling growth and it could contribute to the propagation and conservation of these species. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1665 |
| institution | Madera y Bosques |
| language | eng |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-16652022-11-29T22:48:28Z Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia Bioestimulación láser para mejorar capacidad germinativa de semillas y el crecimiento de plántulas de Prosopis laevigata y Jacaranda mimosifolia Costilla-Hermosillo, María Guadalupe Ortiz-Morales, Martín Loza-Cornejo, Sofía Frausto-Reyes, Claudio Ali Metwally, Sami anatomical changes biochemical characteristics He-Ne laser germination percentage cambios anatómicos características bioquímicas láser He-Ne porcentaje de germinación “Jacaranda” (Jacaranda mimosifolia) and "mezquite” (Prosopis laevigata) are timber species that generally present problems with regard to the germination of their seeds in natural conditions, since they have a very hard and impermeable cover. Different treatments have been applied to improve the germinative response of both species with unfavorable results. This study aimed to know the effect of the pre-sowing laser biostimulation on germination and seedlings growth of these species. The seeds were biostimulated with a He-Ne laser (632 nm, 10 mW). Considering three replications of 50 seeds for each species, five irradiation treatments were applied (30 s, 60 s, 90 s, 120 s, 150 s) and control. The results for mezquite demonstrated that the highest number of germinated seeds (96%) was obtained with the treatments 90 s and 150 s; in contrast, the control seeds showed a lower germination percentage (16%). Additionally, the 30 s treatment produced a positive effect on the growth of the root, and it was different (p < 0.05) to the remaining treatments and the control. For Jacaranda, there were significant statistical differences (p < 0.05) between the control and the different treatments. 29% of seed germination occurs without any treatment. However, for 90 s and 120 s, germination is induced in a relatively high percent (97%-99%). For both species, the best treatment was 120 s, since higher values were recorded for all the morphological variables. It is concluded that laser biostimulation can produce beneficial effects on the germination of seeds and seedling growth and it could contribute to the propagation and conservation of these species. "Jacaranda" (Jacaranda mimosifolia) y "mezquite" (Prosopis laevigata) son especies que presentan problemas en la germinación de sus semillas en condiciones naturales, por tener una cubierta muy dura e impermeable. Se han aplicado diferentes tratamientos para mejorar la respuesta germinativa de ambas especies con resultados poco favorables. Este estudio tuvo como objetivo conocer el efecto de la bioestimulación láser en semillas sobre la germinación y el crecimiento de plántulas en estas especies. Se utilizó un láser He-Ne (632 nm, 10 mW). Con tres repeticiones de 50 semillas, se aplicaron cinco tratamientos de irradiación (30 s, 60 s, 90 s, 120 s, 150 s) y el control. Los resultados para el mezquite demostraron que el control tuvo el menor porcentaje de germinación (26%), y el mayor número de semillas germinadas (96%) fue para 90 s y 150 s de irradiación. El tratamiento de 30 s produjo un efecto positivo sobre el crecimiento de la raíz y fue significativamente diferente (p < 0.05) a los tratamientos restantes y al control. Para la jacaranda, se observaron diferencias significativas (p < 0.05) entre el control y los tratamientos, las semillas sin ningún tratamiento germinaron 29% y con los tratamientos de 90 s y 120 s la germinación fue de 97%-99%. Adicionalmente, destacó el efecto del tratamiento 120 s, ya que se registraron valores más altos para todas las variables morfológicas. Se concluye que la bioestimulación con láser puede mejorar el porcentaje de germinación y el crecimiento de las plántulas, por lo que podría contribuir significativamente a la propagación y conservación de estas especies. Instituto de Ecología, A.C. 2019-09-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf application/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2521665 10.21829/myb.2019.2521665 Madera y Bosques; Vol. 25 No. 2 (2019): Verano 2019 Madera y Bosques; Vol. 25 Núm. 2 (2019): Verano 2019 2448-7597 1405-0471 eng https://myb.ojs.inecol.mx/index.php/myb/article/view/e2521665/1963 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2521665/1952 Derechos de autor 2019 Madera y Bosques |
| spellingShingle | Costilla-Hermosillo, María Guadalupe Ortiz-Morales, Martín Loza-Cornejo, Sofía Frausto-Reyes, Claudio Ali Metwally, Sami Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title | Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title_full | Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title_fullStr | Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title_full_unstemmed | Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title_short | Laser biostimulation for improving seeds germinative capacity and seedlings growth of Prosopis laevigata and Jacaranda mimosifolia |
| title_sort | laser biostimulation for improving seeds germinative capacity and seedlings growth of prosopis laevigata and jacaranda mimosifolia |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2521665 |
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