Manejo integrado de la pudrición de corona en el cultivo de piña (Ananas comosus), causada por Phythopthora spp
| dc.contributor.advisor | Dueñas Alvarado, Darío | |
| dc.contributor.author | Cano Llumiguano, Alexandra Karoli | |
| dc.date.accessioned | 2023-10-27T16:01:29Z | |
| dc.date.available | 2023-10-27T16:01:29Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | http://dspace.utb.edu.ec/handle/49000/14848 | |
| dc.description | Crown rot in pineapple is a devastating disease in pineapple plantations worldwide and in Ecuador, caused by a fungus of the genus Phytophthora, which can include several species depending on the size of the plant. The information obtained was paraphrased, summarized and analyzed in order to obtain relevant information on the integrated management of crown rot in pineapple (A. comosus), caused by Phythopthora spp. It was determined that crown rot disease in pineapple is caused by a fungus of the genus Phythopthora, which includes several species: Phytophthora parasitica, Phytophthora cinnamomi and Phytophthora nicotianae. The fungus P. parasitica causes an infection that usually starts with the heart of the crown and also attacks the root, especially at an early stage of development, trying to kill the plants, it is necrotic and non-functional. The fungus P. cinnamomi generates the symptoms in the aerial parts appear as slowly progressive chlorosis until the tips of the upper leaves die; the leaves fall off easily and have a strong putrid odor; a longitudinal section of the trunk reveals mummified, hard, white tissue, surrounded by a halo of necrosis; the fruits are affected by mummified, necrotic tissue that is soft to the touch. The fungus P. nicotianea generates the symptoms with watery lesions at the base of the leaves (tissue without chlorophyll) and then changing to light green (chlorophyll), when the tips of the leaves are necrotic, rotting is observed in the central leaves, the center of the rosette presents a light brown color and the presence of mycelium creates a characteristic unpleasant odor. Damage from crown rot disease in pineapple crops is significant, in which pineapple plants turn yellow and leaves drop easily; the buds are brown and have an unpleasant odor, resulting in the total loss of affected fruit, thus reducing the potential yield of the crop. Control measures against crown rot disease in pineapple should focus on soil and planting material disinfection, use of healthy seeds for planting, and reduction of soil moisture. | es_ES |
| dc.description | Crown rot in pineapple is a devastating disease in pineapple plantations worldwide and in Ecuador, caused by a fungus of the genus Phytophthora, which can include several species depending on the size of the plant. The information obtained was paraphrased, summarized and analyzed in order to obtain relevant information on the integrated management of crown rot in pineapple (A. comosus), caused by Phythopthora spp. It was determined that crown rot disease in pineapple is caused by a fungus of the genus Phythopthora, which includes several species: Phytophthora parasitica, Phytophthora cinnamomi and Phytophthora nicotianae. The fungus P. parasitica causes an infection that usually starts with the heart of the crown and also attacks the root, especially at an early stage of development, trying to kill the plants, it is necrotic and non-functional. The fungus P. cinnamomi generates the symptoms in the aerial parts appear as slowly progressive chlorosis until the tips of the upper leaves die; the leaves fall off easily and have a strong putrid odor; a longitudinal section of the trunk reveals mummified, hard, white tissue, surrounded by a halo of necrosis; the fruits are affected by mummified, necrotic tissue that is soft to the touch. The fungus P. nicotianea generates the symptoms with watery lesions at the base of the leaves (tissue without chlorophyll) and then changing to light green (chlorophyll), when the tips of the leaves are necrotic, rotting is observed in the central leaves, the center of the rosette presents a light brown color and the presence of mycelium creates a characteristic unpleasant odor. Damage from crown rot disease in pineapple crops is significant, in which pineapple plants turn yellow and leaves drop easily; the buds are brown and have an unpleasant odor, resulting in the total loss of affected fruit, thus reducing the potential yield of the crop. Control measures against crown rot disease in pineapple should focus on soil and planting material disinfection, use of healthy seeds for planting, and reduction of soil moisture. | es_ES |
| dc.description.abstract | La pudrición de corona en piña es una enfermedad devastadora en las plantaciones de piña a nivel mundial y en el Ecuador, ocasionada por un hongo del género Phytophthora, que puede incluir varias especies según el tamaño de la planta. La información obtenida fue parafraseada, resumida y analizada a fin de obtener información relevante sobre el manejo integrado de la pudrición de corona en el cultivo de piña (A. comosus), causada por Phythopthora spp. Por lo anteriormente detallado se determinó que la enfermedad pudrición de corona en el cultivo de piña es ocasionada por el hongo del género Phythopthora que incluye varias especies: Phytophthora parasitica, Phytophthora cinnamomi y Phytophthora nicotianae. El hongo P. parasitica provoca una infección que generalmente comienza con el corazón de la corona y también ataca la raíz, especialmente en una etapa temprana de desarrollo, tratando de matar las plantas, es necrótica y no funcional. El hongo P. cinnamomi genera los síntomas en las partes aéreas aparecen como clorosis lentamente progresiva hasta que mueren las puntas de las hojas superiores; las hojas se caen fácilmente y no tienen un fuerte olor pútrido; una sección longitudinal del tronco revela tejido momificado, duro y blanco, rodeado por un halo de necrosis; los frutos se ven afectados por un tejido momificado, necrótico y suave al tacto. El hongo P. nicotianea genera los síntomas con lesiones acuosas en la base de las hojas (tejido sin clorofila) y luego cambiando a verde claro (clorofila), al estar necróticas las puntas de las hojas, se observa pudrición en las hojas centrales, el centro de la roseta presenta un color marrón claro y la presencia de micelio crea un olor desagradable característico. Los daños por la enfermedad pudrición de corona en el cultivo de piña son significativos, en la cual las plantas de piña se vuelven amarillas y las hojas caen fácilmente; los cogollos son de color marrón y tienen un olor desagradable, lo que provoca la pérdida total de los frutos afectados, reduciendo así el rendimiento potencial del cultivo. Las medidas de control contra la enfermedad pudrición de corona en el cultivo de piña deben enfocarse en la desinfección de los suelos y material de siembra, utilización de semillas sanas para la siembra y reducción de la humedad del suelo. trol | es_ES |
| dc.format.extent | 31 p. | es_ES |
| dc.language.iso | es | es_ES |
| dc.publisher | BABAHOYO: UTB, 2023 | es_ES |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Ecuador | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ | * |
| dc.subject | Síntomas | es_ES |
| dc.subject | Daños | es_ES |
| dc.subject | Dispersión | es_ES |
| dc.subject | Transmisión | es_ES |
| dc.title | Manejo integrado de la pudrición de corona en el cultivo de piña (Ananas comosus), causada por Phythopthora spp | es_ES |
| dc.type | bachelorThesis | es_ES |
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