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Comportamiento de Meloidogyne incognita sobre tomate y pimiento resistente en Uruguay

Authors: Piedra-Buena, Ana; Díez-Rojo, M. A.; Bello Pérez, Antonio; Robertson, Lee; López-Pérez, J. A.; Escuer, Miguel; León, L. de;

Comportamiento de Meloidogyne incognita sobre tomate y pimiento resistente en Uruguay

Abstract

[ES] Para evaluar la influencia del sistema de cultivo en la selección de biotipos virulentos de Meloidogyne incognita en Uruguay, se estudió la virulencia de 33 poblaciones de este nematodo procedentes de invernaderos, tanto en monocultivo como en rotación, mediante bioensayos con cultivares de tomate y pimiento resistentes a M. incognita. Se encontraron 36,4% de las poblaciones virulentas a tomate y pimiento resistentes; 33,3% virulentas a tomate resistente, pero no a pimiento; 24,2% avirulentas a tomate y pimiento resistentes y el 6,1% restante presentó virulencia sólo a pimientos portadores de genes de resistencia. Se encontró una asociación positiva entre los monocultivo de tomate o pimiento con cultivares resistentes y la presencia de virulencia en las poblaciones de M. incognita. .

[EN] The virulence of 33 populations of Meloidogyne incognita collected from greenhouses under monoculture and crop rotation was studied to evaluate the influence of the cropping system on the selection of virulent biotypes in Uruguay, using bioassays including cultivars of tomato and pepper, resistant to M. incognita .Over thirty six percent of the populations were virulent on resistant tomato and pepper; 33.3% were virulent on resistant tomato, but not on pepper; 24.2% were avirulent on resistant cultivars of tomato and pepper and 6.1% were virulent only on peppers carrying resistance genes. There was a positive association between monoculture of resistant tomato or pepper and the presence of virulent populations of M. incognita.

Este trabajo forma parte de los proyectos INIA OT 03-006-C7-6 y AGL2002-04040-C05-01 AGR-FOR. Ana Piedra Buena es becaria de la Agencia Española de Cooperación Internacional (AECI-MAEC).

Peer reviewed

Keywords

Root-knot nematode, Rotation, Resistencia, Greenhouse, Monocultivo, Nematodos formadores de nódulos, Resistance, Manejo de cultivos, Rotación, Monoculture, Invernadero, Crop management

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green