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Gonzales, X., (2022). Prospección de nemátodos asociados al cultivo de Caqui (Diospyros kaki L.f) en la costa central del Perú [Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/5446
Gonzales, X., Prospección de nemátodos asociados al cultivo de Caqui (Diospyros kaki L.f) en la costa central del Perú []. PE: Universidad Nacional Agraria La Molina; 2022. https://hdl.handle.net/20.500.12996/5446
@misc{renati/247326,
title = "Prospección de nemátodos asociados al cultivo de Caqui (Diospyros kaki L.f) en la costa central del Perú",
author = "Gonzales Huamán, Ximena",
publisher = "Universidad Nacional Agraria La Molina",
year = "2022"
}
Title: Prospección de nemátodos asociados al cultivo de Caqui (Diospyros kaki L.f) en la costa central del Perú
Authors(s): Gonzales Huamán, Ximena
Advisor(s): Palomo Herrera, Ángel Alfonso
Keywords: Diospyros kaki; Nematodos de las plantas; Relaciones huésped patógeno; Plagas de plantas; Respuesta de la planta; Producción; Calidad; Perú; Caqui
OCDE field: https://purl.org/pe-repo/ocde/ford#4.01.06
Issue Date: 2022
Institution: Universidad Nacional Agraria La Molina
Abstract: La presente investigación se realizó con el objetivo de identificar los principales nematodos fitopatógenos asociados al cultivo de caqui (Diospyros kaki L.f) en la costa central del Perú. Para realizar la identificación, la investigación se dividió en dos fases: fase de campo y fase de laboratorio. En la fase de campo se muestrearon 28 muestras de raíces y suelos provenientes de 1 vivero y 8 fundos ubicados en las provincias de Huaura, Huaral y Cañete de la región Lima. La fase de laboratorio se desarrolló en el Laboratorio de Nematología de la Universidad Nacional Agraria La Molina (UNALM) en el cual se determinó la presencia de siete géneros: Tylenchulus sp. , Helicotylenchus sp., Meloidogyne sp., Rotylenchulus sp., Paratylenchus sp., Scutellonema sp. y Tylenchorhynchus sp. La identificación de estos siete géneros fue a nivel morfológico utilizando claves taxonómicas específicas para cada género con excepción del género Meloidogyne en el cual además de utilizar las claves taxonómicas también se analizaron los cortes perineales de las hembras. Dentro de esos géneros, se determinó que las especies de nematodos fitopatógenos con mayor incidencia fueron Tylenchulus semipenetrans, Helicotylenchus dihystera, Meloidogyne incógnita y Meloidogyne javanica siendo Tylenchulus semipenetrans la especie con mayor incidencia (54%) en las muestras de suelo y raíces y una de las especies más importantes ya que se pudo correlacionar su población con la sintomatología del caqui al igual que Meloidogyne incógnita y Meloidogyne javanica puesto que se observaron nodulaciones en un grado cuatro según la escala de severidad propuesta por Taylor y Sasser (1983) en la raíces.
This research was carried out with the objective of identifying the main phytopathogenic nematodes associated with persimmon cultivation (Diospyros kaki L.f) in the central coast of Peru. To carry out the identification, the research was divided into two phases: field phase and laboratory phase. In the field phase, 28 root and soil samples were sampled from one greenhouse and nine farms in Huaura, Huaral and Cañete provinces of the Lima region. The laboratory phase was developed in the Nematology Laboratory of the National Agrarian University La Molina (UNALM) in which the presence of seven genera was determined: Tylenchulus sp. , Helicotylenchus sp., Meloidogyne sp., Rotylenchulus sp., Paratylenchus sp., Scutellonema sp. and Tylenchorhynchus sp. The identification of these seven genera was at a morphological level using specific taxonomic keys with the exception of the genus Meloidogyne in which the perineal sections of the females were analyzed . Within these genera, it was determined that the species of phytopathogenic nematodes with the highest incidence were Tylenchulus semipenetrans, Helicotylenchus dihystera, Meloidogyne incognita and Meloidogyne javanica. Being Tylenchulus semipenetrans the specie with the highest incidence (54%) in soil and root samples and one of the most important species because its population could be correlated with the symptoms of persimmon as well as Meloidogyne incognita and Meloidogyne javanica since nodulations were observed in a grade four according to the severity scale proposed by Taylor and Sasser (1983) in the roots.
This research was carried out with the objective of identifying the main phytopathogenic nematodes associated with persimmon cultivation (Diospyros kaki L.f) in the central coast of Peru. To carry out the identification, the research was divided into two phases: field phase and laboratory phase. In the field phase, 28 root and soil samples were sampled from one greenhouse and nine farms in Huaura, Huaral and Cañete provinces of the Lima region. The laboratory phase was developed in the Nematology Laboratory of the National Agrarian University La Molina (UNALM) in which the presence of seven genera was determined: Tylenchulus sp. , Helicotylenchus sp., Meloidogyne sp., Rotylenchulus sp., Paratylenchus sp., Scutellonema sp. and Tylenchorhynchus sp. The identification of these seven genera was at a morphological level using specific taxonomic keys with the exception of the genus Meloidogyne in which the perineal sections of the females were analyzed . Within these genera, it was determined that the species of phytopathogenic nematodes with the highest incidence were Tylenchulus semipenetrans, Helicotylenchus dihystera, Meloidogyne incognita and Meloidogyne javanica. Being Tylenchulus semipenetrans the specie with the highest incidence (54%) in soil and root samples and one of the most important species because its population could be correlated with the symptoms of persimmon as well as Meloidogyne incognita and Meloidogyne javanica since nodulations were observed in a grade four according to the severity scale proposed by Taylor and Sasser (1983) in the roots.
Link to repository: https://hdl.handle.net/20.500.12996/5446
Note: Universidad Nacional Agraria La Molina. Facultad de Agronomía. Departamento Académico de Fitopatología
Discipline: Agronomía
Grade or title grantor: Universidad Nacional Agraria La Molina. Facultad de Agronomía
Grade or title: Ingeniero Agrónomo
Juror: Espinoza Nuñez, Erick; Aragón Caballero, Liliana Maria; Huarhua Zaquinaula, Medali Heidi
Register date: 15-Aug-2022
This item is licensed under a Creative Commons License