Evaluación del efecto auxin-like de ácidos húmicos en maíz mediante análisis digital de imágenes
The auxin-like effect consists in plant growth promotion by humic acids (HA). In this research the auxin-like effect was determined by digital image processing, both foliar and root surface of corn plants were assessed. The HA were obtained through alcaline solubilization coal, HA-NaOH and through c...
- Autores:
-
Pantoja Guerra, Manuel
Almanza Pérez, Yezid
Valero Valero, Nelson
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
- Repositorio:
- Repositorio Institucional UDCA
- Idioma:
- spa
- OAI Identifier:
- oai:repository.udca.edu.co:11158/1605
- Acceso en línea:
- https://revistas.udca.edu.co/index.php/ruadc/article/view/90
https://doi.org/10.31910/rudca.v19.n2.2016.90
- Palabra clave:
- Ácidos húmicos
Procesamiento digital
Sustancia húmicas
Matlab
ImageJ
Auxinas
Maíz
- Rights
- openAccess
- License
- Derechos Reservados - Universidad de Ciencias Aplicadas y Ambientales, 2016
| Summary: | The auxin-like effect consists in plant growth promotion by humic acids (HA). In this research the auxin-like effect was determined by digital image processing, both foliar and root surface of corn plants were assessed. The HA were obtained through alcaline solubilization coal, HA-NaOH and through coal bacterial solubilization, HA-CSB3 and HA-CSB25. The application of the HA solutions of 20, 80 and 150mgHA/L was evaluated through seed immersion and foliar spray on two week-old plants. The experiment was carried out under shade cloth with five replicates by treatments; 30 days after planting in soil, leaf area was measured using ImageJ software and total root surface through an algorithm of Matlab. Significant increase in leaf area of plants treated by immersion of seeds in HA-BSC3-80mg/L and 150mg/L, AH-CSB25-20mg/L and 150mg/L, and HA-NaOH-80mg/L was found, as well as in plants treated by foliar aspersion of HA-CSB3-150mg/L, AH-CSB 25-150mg/L and HA-NaOH-150mg/L. Moreover significant increase in total root surface of plants treated with HA-CSB25-150mg/L, HA-NaOH-80mg/L and HA-CSB3-80mg/L and all treatments of HA by aspersion was found. The auxin-like effect of humic acids on maize plants was evidenced through digital image analysis; this tool can produce accurate information to measure some plant development parameters. |
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