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Influencia del potasio en la resistencia de los tejidos de arroz al ataque de Pyricularia oryzae Cav.

The relation between 5 levels of potassium (1170, 1750, 2340 2920, y 3510 ppm), foliage tissue resistance and rice panicle resistance to the action of Pyricularia oryzae Cav. was studied. Plants height and dry residue was too considered. Two inoculations were made. The first to the foliage (160 day...

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Autores principales: Moscol Riofrío, L., Morales Abanto, A.
Formato: Artículo
Lenguaje:Español
Publicado: Instituto Interamericano de Cooperación para la Agricultura (IICA) 2025
Materias:
Oryza sativa||Oryza sativa||Oryza sativa||Oryza sativa
Pyricularia oryzae||Pyricularia oryzae||pyricularia oryzae||Pyricularia oryzae
Hongo||Fungi||fungo||Champignon
Enfermedad fungosa||fungal diseases||doença fúngica||maladie fongique
Potasio||potassium||Potássio||potassium
Elemento químico||elements||elemento químico||élément chimique
Resistencia a la enfermedad||disease resistance||resistência aos agentes patogénicos||résistance aux maladies
Sede Central
Acceso en línea:https://repositorio.catie.ac.cr/handle/11554/12863
Sumario:The relation between 5 levels of potassium (1170, 1750, 2340 2920, y 3510 ppm), foliage tissue resistance and rice panicle resistance to the action of Pyricularia oryzae Cav. was studied. Plants height and dry residue was too considered. Two inoculations were made. The first to the foliage (160 days old) and the second to the panicle neck (12 days later). The conditions were 100 per cent relative humidity and 25°C temperature. The results suggest tha the plants with higher levels of potassium are more resistant to Pyricularia oryzae cav. than those with lower levels. The plant´s height and dry residue showed a significative linear tendency.

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