Preliminary studies on biological control of the blackpoint complex of wheat in Argentina

Blackpoint is a brownish or black discoloration of wheat kernels and biological control is a complementary strategy to manage the disease. This work evaluated the effect of five strains of Trichoderma harzianum and one strain of T. koningii on the growth of Bipolaris sorokiniana and Alternaria alter...

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Autores principales: Mónaco, Cecilia Inés, Sisterna, Marina Noemí, Perelló, Analía Edith, Dal Bello, Gustavo Mariano
Formato: Articulo
Lenguaje:Inglés
Publicado: 2004
Materias:
Biología
Ciencias Agrarias
Alternaria alternata
Biological control
Bipolaris sorokiniana
Blackpoint
Wheat
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131419
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131419
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Ciencias Agrarias
Alternaria alternata
Biological control
Bipolaris sorokiniana
Blackpoint
Wheat
spellingShingle Biología
Ciencias Agrarias
Alternaria alternata
Biological control
Bipolaris sorokiniana
Blackpoint
Wheat
Mónaco, Cecilia Inés
Sisterna, Marina Noemí
Perelló, Analía Edith
Dal Bello, Gustavo Mariano
Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
topic_facet Biología
Ciencias Agrarias
Alternaria alternata
Biological control
Bipolaris sorokiniana
Blackpoint
Wheat
description Blackpoint is a brownish or black discoloration of wheat kernels and biological control is a complementary strategy to manage the disease. This work evaluated the effect of five strains of Trichoderma harzianum and one strain of T. koningii on the growth of Bipolaris sorokiniana and Alternaria alternata and compared the results of screening tests under controlled conditions and field evaluations on bread and durum wheat ears. Disease incidence, infection percentage and seedling emergence percentage determined in a greenhouse assay were evaluated. Dual cultures showed Trichoderma spp. inhibited significantly the mycelial growth of B. sorokiniana between 36 and 71% and of A. alternata between 41 and 61%. Microscopic examination of B. sorokiniana and A. alternata showed plasmolysis and vacuolization of hyphae of the pathogens in the presence of the antagonists tested. With pre-inoculation of wheat ears at anthesis under field conditions, disease incidence, infection percentage by blotter tests and seedling emergence in the greenhouse did not show significant differences between controls and treatments with Trichoderma spp.
format Articulo
Articulo
author Mónaco, Cecilia Inés
Sisterna, Marina Noemí
Perelló, Analía Edith
Dal Bello, Gustavo Mariano
author_facet Mónaco, Cecilia Inés
Sisterna, Marina Noemí
Perelló, Analía Edith
Dal Bello, Gustavo Mariano
author_sort Mónaco, Cecilia Inés
title Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
title_short Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
title_full Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
title_fullStr Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
title_full_unstemmed Preliminary studies on biological control of the blackpoint complex of wheat in Argentina
title_sort preliminary studies on biological control of the blackpoint complex of wheat in argentina
publishDate 2004
url http://sedici.unlp.edu.ar/handle/10915/131419
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AT perelloanaliaedith preliminarystudiesonbiologicalcontroloftheblackpointcomplexofwheatinargentina
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