Radical biostimulation and solar irradiation in Coffea arabica L. nursery plants
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| Autores: | , , |
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| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2024 |
| Descripción: | Introduction. In the nursery stage, quality Coffea arabica plants can be formed, which reduces the stressful effects after transplanting, increases photosynthetic efficiency and maintains a constant growth rate. Objective. To evaluate the effect of biostimulants and solar irradiation on the growth and physiology of C. arabica plants during the nursery stage. Materials and methods. The experiments were carried out in a greenhouse at the Benemérita Universidad Autónoma de Puebla, Mexico. Each lasted 270 days and were carried out in 2018 and 2022. In a factorial design in blocks; factor 1 (biostimulants: control, mycorrhizal fungi, seaweed, and organic polymers). Factor 2 (irradiation: 81, 168, 278 and 440 µmol m-2 s-1). Factor 3 (varieties: Costa Rica 95, Marsellesa, Caturra Roja and Garnica). Mycorrhizal colonization (MC), root system proportion (RSP), growth rate (GR), aerial proportion (AP), chlorophylls, and nutritional content were all determined. An ANOVA was performed on the data to detect differences between treatments. Results. At 270 days after sowing, the Marsellesa variety biostimulated with mycorrhizal fungi and exposed to an irradiation of 168±36 µmol m-2 s-1, reached higher values in MC with 36.51 %, and GR with 0.175 g g-1 day. In Costa Rica 95 and Marsellesa, biostimulation with polymers and an irradiation of 440±59 µmol m-2 s-1 was significantly related (p≤0.05) to increases of 3.08 mg g-1 FMW in total chlorophyll. In Marsellesa, high nutritional contents in N, P, K, Ca, and Mg were obtained by biostimulation with polymers and exposure to 168±36 μmol m-2 s-1 of irradiation. Conclusions. Radical biostimulation with mycorrhizal fungi and irradiation levels of 168 to 278 μmol m-2 s-1 led to better development in coffee plants. |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/59975 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/59975 |
| Palabra clave: | seaweed total chlorophyll mycorrhizae organic polymers algas marinas clorofila total micorrizas polímeros orgánicos |