Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita

ABSTRACT The Trichoderma species act as plant symbionts, decomposers of organic material, and as antagonists of root phytoparasites. To estimate the potential of four native strains of Trichoderma as growth promoters of Capsicum annuum L. and as biocontrol against root knot nematode Meloidogyne inco...

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Autores principales:	Herrera-Parra,Elizabeth, Cristóbal-Alejo,Jairo, Ramos-Zapata,José A.
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	Antagonistic fungi interaction root-knot nematodes sweet pepper.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000400318
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spelling	oai:scielo:S0718-583920170004003182018-01-30Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognitaHerrera-Parra,ElizabethCristóbal-Alejo,JairoRamos-Zapata,José A. Antagonistic fungi interaction root-knot nematodes sweet pepper. ABSTRACT The Trichoderma species act as plant symbionts, decomposers of organic material, and as antagonists of root phytoparasites. To estimate the potential of four native strains of Trichoderma as growth promoters of Capsicum annuum L. and as biocontrol against root knot nematode Meloidogyne incognita (Kofoid and White) Chitwood, two bioassays in greenhouse were established. In one, the capacity of Trichoderma to promote initial growth of seedlings (36 d after planting, dap) was evaluated. In the other, the biocontrol of Trichoderma against M. incognita at 96 dap was also evaluated. The Trichoderma strains and the chemical fertilization treatment significantly promoted seedling growth at 36 dap (P ≤ 0.01). With respect to the control, T. atroviride promoted greater height in the seedlings, while T. atroviride, T. virens and T. harzianum-C2 increased fresh weight in roots (60.14%) and both T. atroviride and T. harzianum-C2 produced up to 82.30% more dry root biomass. In biocontrol, the control plants registered the highest damage with galling indexes of 85.50% (P ≤ 0.01). The lowest galling indexes were estimated with all the Trichoderma strains (21.60% to 35%). Trichoderma atroviride reduced egg production by 63% and the production of females by 14.36%, with respect to the oxamyl nematicide. Biocontrol of the nematode through the application of the Trichoderma strains favored growth of the plants in general. The fungal species studied show potential as growth promoting agents and as biocontrol agents M. incognita in C. annuum.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.4 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000400318en10.4067/S0718-58392017000400318
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antagonistic fungi interaction root-knot nematodes sweet pepper.
spellingShingle	Antagonistic fungi interaction root-knot nematodes sweet pepper. Herrera-Parra,Elizabeth Cristóbal-Alejo,Jairo Ramos-Zapata,José A. Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
description	ABSTRACT The Trichoderma species act as plant symbionts, decomposers of organic material, and as antagonists of root phytoparasites. To estimate the potential of four native strains of Trichoderma as growth promoters of Capsicum annuum L. and as biocontrol against root knot nematode Meloidogyne incognita (Kofoid and White) Chitwood, two bioassays in greenhouse were established. In one, the capacity of Trichoderma to promote initial growth of seedlings (36 d after planting, dap) was evaluated. In the other, the biocontrol of Trichoderma against M. incognita at 96 dap was also evaluated. The Trichoderma strains and the chemical fertilization treatment significantly promoted seedling growth at 36 dap (P ≤ 0.01). With respect to the control, T. atroviride promoted greater height in the seedlings, while T. atroviride, T. virens and T. harzianum-C2 increased fresh weight in roots (60.14%) and both T. atroviride and T. harzianum-C2 produced up to 82.30% more dry root biomass. In biocontrol, the control plants registered the highest damage with galling indexes of 85.50% (P ≤ 0.01). The lowest galling indexes were estimated with all the Trichoderma strains (21.60% to 35%). Trichoderma atroviride reduced egg production by 63% and the production of females by 14.36%, with respect to the oxamyl nematicide. Biocontrol of the nematode through the application of the Trichoderma strains favored growth of the plants in general. The fungal species studied show potential as growth promoting agents and as biocontrol agents M. incognita in C. annuum.
author	Herrera-Parra,Elizabeth Cristóbal-Alejo,Jairo Ramos-Zapata,José A.
author_facet	Herrera-Parra,Elizabeth Cristóbal-Alejo,Jairo Ramos-Zapata,José A.
author_sort	Herrera-Parra,Elizabeth
title	Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
title_short	Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
title_full	Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
title_fullStr	Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
title_full_unstemmed	Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita
title_sort	trichoderma strains as growth promoters in capsicum annuum and as biocontrol agents in meloidogyne incognita
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000400318
work_keys_str_mv	AT herreraparraelizabeth trichodermastrainsasgrowthpromotersincapsicumannuumandasbiocontrolagentsinmeloidogyneincognita AT cristobalalejojairo trichodermastrainsasgrowthpromotersincapsicumannuumandasbiocontrolagentsinmeloidogyneincognita AT ramoszapatajosea trichodermastrainsasgrowthpromotersincapsicumannuumandasbiocontrolagentsinmeloidogyneincognita
_version_	1714205372254781440

Trichoderma strains as growth promoters in Capsicum annuum and as biocontrol agents in Meloidogyne incognita

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