Three inoculation methods for screening corn germplasm to white ear rot resistance

Three inoculation methods for screening corn germplasm to white ear rot resistance

Three inoculation methods (natural, spraying and pouring) of Stenocarpella maydis in corn cobs were compared for their efficiency in screening corn genotypes for resistance to this pathogen. A total of six corn hybrids were inoculated with each method. Natural infection, spraying a conidial suspension on stigmas, or pouring it directly onto corn ears resulted in 21.02%, 39.78%, and 44.32% of infected ears. The high disease pressure provided by artificial inoculation of S. maydis allowed for a better differentiation between resistant and susceptible corn hybrids. The pouring technique was the easiest to carry out and better than the other methods under field conditions.

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Main Authors: Mário,Justino L., Reis,Erlei M., Juliatti,Fernando C.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Fitopatologia 2011
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000600004
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spelling oai:scielo:S1982-567620110006000042012-03-06Three inoculation methods for screening corn germplasm to white ear rot resistanceMário,Justino L.Reis,Erlei M.Juliatti,Fernando C. S. macrospora Stenocarpella maydis Zea mays breeding Three inoculation methods (natural, spraying and pouring) of Stenocarpella maydis in corn cobs were compared for their efficiency in screening corn genotypes for resistance to this pathogen. A total of six corn hybrids were inoculated with each method. Natural infection, spraying a conidial suspension on stigmas, or pouring it directly onto corn ears resulted in 21.02%, 39.78%, and 44.32% of infected ears. The high disease pressure provided by artificial inoculation of S. maydis allowed for a better differentiation between resistant and susceptible corn hybrids. The pouring technique was the easiest to carry out and better than the other methods under field conditions.info:eu-repo/semantics/openAccessSociedade Brasileira de FitopatologiaTropical Plant Pathology v.36 n.6 20112011-12-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000600004en10.1590/S1982-56762011000600004
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Mário,Justino L.
Reis,Erlei M.
Juliatti,Fernando C.
spellingShingle Mário,Justino L.
Reis,Erlei M.
Juliatti,Fernando C.
Three inoculation methods for screening corn germplasm to white ear rot resistance
author_facet Mário,Justino L.
Reis,Erlei M.
Juliatti,Fernando C.
author_sort Mário,Justino L.
title Three inoculation methods for screening corn germplasm to white ear rot resistance
title_short Three inoculation methods for screening corn germplasm to white ear rot resistance
title_full Three inoculation methods for screening corn germplasm to white ear rot resistance
title_fullStr Three inoculation methods for screening corn germplasm to white ear rot resistance
title_full_unstemmed Three inoculation methods for screening corn germplasm to white ear rot resistance
title_sort three inoculation methods for screening corn germplasm to white ear rot resistance
description Three inoculation methods (natural, spraying and pouring) of Stenocarpella maydis in corn cobs were compared for their efficiency in screening corn genotypes for resistance to this pathogen. A total of six corn hybrids were inoculated with each method. Natural infection, spraying a conidial suspension on stigmas, or pouring it directly onto corn ears resulted in 21.02%, 39.78%, and 44.32% of infected ears. The high disease pressure provided by artificial inoculation of S. maydis allowed for a better differentiation between resistant and susceptible corn hybrids. The pouring technique was the easiest to carry out and better than the other methods under field conditions.
publisher Sociedade Brasileira de Fitopatologia
publishDate 2011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762011000600004
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AT reiserleim threeinoculationmethodsforscreeningcorngermplasmtowhiteearrotresistance
AT juliattifernandoc threeinoculationmethodsforscreeningcorngermplasmtowhiteearrotresistance
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