Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions

In Colombia, root-knot nematodes Meloidog yne spp. are considered as one of the main constraints in lulo crop production. These nematodes can cause root damage resulting in low production. The aim of this study was to evaluate under field conditions the reaction of 16 genotypes of lulo, Solanum quit...

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Autores Principales: Salazar González, Claudia, Betancourth-García, Carlos
Formato: Artículo (Article)
Lenguaje:Español (Spanish)
Publicado: Corporación Colombiana de Investigación Agropecuaria (Agrosavia) 2018
Acceso en línea:http://hdl.handle.net/20.500.12324/34020
id ir-20.500.12324-34020
recordtype dspace
institution Agrosavia
collection DSpace
language Español (Spanish)
description In Colombia, root-knot nematodes Meloidog yne spp. are considered as one of the main constraints in lulo crop production. These nematodes can cause root damage resulting in low production. The aim of this study was to evaluate under field conditions the reaction of 16 genotypes of lulo, Solanum quitoense Lam. (Solanaceae), of the Castilla variety and the species S. hirtum Vahl., previously selected in a greenhouse experiment and categorized as moderately resistant and resistant to the attack by Meloidog yne sp. A chemical treatment and a control treatment, the latter based on the most susceptible genotype in greenhouse experiments were also included. The experiment was conducted in a lulo grove naturally infested with root-knot nematodes under a randomized complete block design with three replications and nine plants per experimental unit. The response variables were incidence, severity and yield. The incidence was higher than 80 % in all cases, but the severity varied because of their genetic condition; BR03 and BR01 being genotypes with lower rates of severity, with values of 1.0 % and 0.8 %, respectively. The yield analysis of variance showed significant differences, indicating that genotypes SQBR01 and SQLF04, reached the highest values with 4.77 and 4.74 t/ha in a total of three harvests.
format Artículo (Article)
author Salazar González, Claudia
Betancourth-García, Carlos
spellingShingle Salazar González, Claudia
Betancourth-García, Carlos
Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
author_facet Salazar González, Claudia
Betancourth-García, Carlos
author_sort Salazar González, Claudia
title Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
title_short Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
title_full Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
title_fullStr Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
title_full_unstemmed Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions
title_sort reaction of genotypes of lulo (solanum quitoense lam.) to meloidogyne spp. under field conditions
publisher Corporación Colombiana de Investigación Agropecuaria (Agrosavia)
publishDate 2018
url http://hdl.handle.net/20.500.12324/34020
_version_ 1672081019907342336
spelling ir-20.500.12324-340202020-07-08T21:25:50Z Reaction of genotypes of lulo (Solanum quitoense Lam.) to Meloidogyne spp. under field conditions Reacción de genotipos de lulo (Solanum quitoense Lam.) a Meloidogyne spp. en condiciones de campo Reação de genótipos do fruto de lulo (Solanum quitoense Lam.) a Meloidogyne spp. em condições de campo Salazar González, Claudia Betancourth-García, Carlos In Colombia, root-knot nematodes Meloidog yne spp. are considered as one of the main constraints in lulo crop production. These nematodes can cause root damage resulting in low production. The aim of this study was to evaluate under field conditions the reaction of 16 genotypes of lulo, Solanum quitoense Lam. (Solanaceae), of the Castilla variety and the species S. hirtum Vahl., previously selected in a greenhouse experiment and categorized as moderately resistant and resistant to the attack by Meloidog yne sp. A chemical treatment and a control treatment, the latter based on the most susceptible genotype in greenhouse experiments were also included. The experiment was conducted in a lulo grove naturally infested with root-knot nematodes under a randomized complete block design with three replications and nine plants per experimental unit. The response variables were incidence, severity and yield. The incidence was higher than 80 % in all cases, but the severity varied because of their genetic condition; BR03 and BR01 being genotypes with lower rates of severity, with values of 1.0 % and 0.8 %, respectively. The yield analysis of variance showed significant differences, indicating that genotypes SQBR01 and SQLF04, reached the highest values with 4.77 and 4.74 t/ha in a total of three harvests. En Colombia, los nematodos del nudo radical Meloidogyne spp. son considerados como uno de los principales inconvenientes en la producción de lulo, por los daños que ocasionan en las raíces y la pérdida de producción asociada. El objetivo de este estudio fue evaluar en condiciones de campo la reacción de 16 genotipos de lulo (Solanum quitoense Lam., Solanaceae), variedad Castilla y la especie S. hirtum Vahl (seleccionados previamente en un experimento en invernadero y categorizados como resistentes y mode-radamente resistentes) al ataque de Meloidogyne sp. Además, se incluyeron dos testigos: uno químico (nematicida) y uno absoluto (que correspondió al genotipo con mayor susceptibilidad en invernadero). El ensayo se estableció en un lote naturalmente infestado por el nematodo, en un diseño de bloques completos al azar con tres repeticiones y nueve plantas por cada unidad experimental. Las variables de respuesta fueron incidencia, severidad y rendimiento. La incidencia fue superior al 80 % en todos los casos, pero la severidad varió debido a su condición genética. BR03 y BR01 fueron los genotipos con índices de severidad más bajos, con valores de 1,0 y 0,8 respectivamente. El análisis de varianza de rendimiento mostró diferencias significativas y evidenció que los genotipos SQBR01 y SQLF04 alcanzaron los valores más altos con 4,77 y 4,74 t/ha en tres pases de cosecha. Na Colômbia, os nematoides das galhas Meloidog ynespp. são considerados como um dos principais limitantes na produção do fruto de lulo devido aos danos que causam nas raízes e à perda de produção associada. O objetivo deste estudo foi avaliar em condições de campo a reação de 16 genótipos de lulo Solanum quitoense Lam. (Solanaceae), variedade Castilla, e a espécie S. hirtum Vahl (selecionados previamente num experimento em estufa e categori-zados como resistentes e moderadamente resistentes) ao ataque de Meloidog yne sp. Além disso, incluíram-se dois indicadores: um químico (nematicida) e um absoluto (que correspondeu ao genótipo com maior suscetibilidade em estufa). O ensaio foi estabelecido em um lote naturalmente infestado pelo nematoide, num desenho de blocos completos ao acaso com três repetições e nove plantas por cada unidade experimental. As variáveis de resposta foram incidência, severidade e rendimento. A incidência foi superior a 80 % em todos os casos, mas a severidade variou por sua condição genética. BR03 e BR01 foram os genótipos com índices de severidade mais baixos, com valores de 1,0 e 0,8 respectivamente. A análise de variância de rendimento mostrou diferenças significativas e evidenciou que os genótipos SQBR01 e SQLF04 atingiram os valores mais altos com 4,77 e 4,74 t/ha em três passes da colheita. Lulo 2018-11-06T20:41:44Z 2018-11-06T20:41:44Z 2017 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revista.corpoica.org.co/index.php/revista/article/view/629 10.21930/rcta.vol18_num2_art:629 http://hdl.handle.net/20.500.12324/34020 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa http://revista.corpoica.org.co/index.php/revista/article/view/629/445 application/pdf Colombia Corporación Colombiana de Investigación Agropecuaria (Agrosavia) Corpoica Ciencia y Tecnología Agropecuaria; Vol 18 No 2 (2017); 295-306 Corpoica Ciencia y Tecnología Agropecuaria; Vol. 18 Núm. 2 (2017); 295-306 revista Corpoica Ciência e Tecnologia Agropecuária; v. 18 n. 2 (2017); 295-306 2500-5308 0122-8706 10.21930/rcta.vol18-num2
score 11,39188