Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat
ABSTRACT Damage to wheat crop is associated with leaf rust (Puccinia triticina) and powdery mildew (Blumeria graminis f. sp. tritici). The present study aimed to evaluate the effect of potassium phosphite and acibenzolar-S-methyl alone or associated with the fungicide epoxiconazole + pyraclostrobin on powdery mildew and leaf rust control, as well as on grain yield. The experiments were designed as randomized blocks with four replicates consisting of plots with 17 planting rows spaced at 0.17 m, with dimensions of 2.89 x 5.0 m each. Severity of powdery mildew and leaf rust was assessed in ten flag leaves and ten whole plants all over the crop season; yield was also evaluated. Severity data were used to calculate the area under the disease progress curve. There was no effect of phosphite applied alone or associated with the fungicide epoxiconazole + pyraclostrobin at different times on mildew. Acibenzolar-S-methyl controlled, on average, 70% powdery mildew. Phosphites applied alone and/or associated with the fungicide had an effect on leaf rust, reducing the severity by 59 and 62%, compared to control. Applications of phosphites alone did not affect the yield components.
Main Authors: | , , , |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Grupo Paulista de Fitopatologia
2018
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000200132 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
oai:scielo:S0100-54052018000200132 |
---|---|
record_format |
ojs |
spelling |
oai:scielo:S0100-540520180002001322018-06-07Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheatSantos,Hellen Aparecida Arantes dosPria,Maristella DallaSilva,Olavo Corrêa daMay-De-Mio,Louise Larissa Resistance induction Blumeria graminis f. sp. tritici Puccinia triticina Triticum aestivum time of application rust and powdery mildew ABSTRACT Damage to wheat crop is associated with leaf rust (Puccinia triticina) and powdery mildew (Blumeria graminis f. sp. tritici). The present study aimed to evaluate the effect of potassium phosphite and acibenzolar-S-methyl alone or associated with the fungicide epoxiconazole + pyraclostrobin on powdery mildew and leaf rust control, as well as on grain yield. The experiments were designed as randomized blocks with four replicates consisting of plots with 17 planting rows spaced at 0.17 m, with dimensions of 2.89 x 5.0 m each. Severity of powdery mildew and leaf rust was assessed in ten flag leaves and ten whole plants all over the crop season; yield was also evaluated. Severity data were used to calculate the area under the disease progress curve. There was no effect of phosphite applied alone or associated with the fungicide epoxiconazole + pyraclostrobin at different times on mildew. Acibenzolar-S-methyl controlled, on average, 70% powdery mildew. Phosphites applied alone and/or associated with the fungicide had an effect on leaf rust, reducing the severity by 59 and 62%, compared to control. Applications of phosphites alone did not affect the yield components.info:eu-repo/semantics/openAccessGrupo Paulista de FitopatologiaSumma Phytopathologica v.44 n.2 20182018-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000200132en10.1590/0100-5405/2213 |
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 |
Santos,Hellen Aparecida Arantes dos Pria,Maristella Dalla Silva,Olavo Corrêa da May-De-Mio,Louise Larissa |
spellingShingle |
Santos,Hellen Aparecida Arantes dos Pria,Maristella Dalla Silva,Olavo Corrêa da May-De-Mio,Louise Larissa Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
author_facet |
Santos,Hellen Aparecida Arantes dos Pria,Maristella Dalla Silva,Olavo Corrêa da May-De-Mio,Louise Larissa |
author_sort |
Santos,Hellen Aparecida Arantes dos |
title |
Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
title_short |
Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
title_full |
Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
title_fullStr |
Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
title_full_unstemmed |
Phosphites and acibenzolar-S-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
title_sort |
phosphites and acibenzolar-s-methyl alone and combined with fungicides for the control of biotrophic pathogens of wheat |
description |
ABSTRACT Damage to wheat crop is associated with leaf rust (Puccinia triticina) and powdery mildew (Blumeria graminis f. sp. tritici). The present study aimed to evaluate the effect of potassium phosphite and acibenzolar-S-methyl alone or associated with the fungicide epoxiconazole + pyraclostrobin on powdery mildew and leaf rust control, as well as on grain yield. The experiments were designed as randomized blocks with four replicates consisting of plots with 17 planting rows spaced at 0.17 m, with dimensions of 2.89 x 5.0 m each. Severity of powdery mildew and leaf rust was assessed in ten flag leaves and ten whole plants all over the crop season; yield was also evaluated. Severity data were used to calculate the area under the disease progress curve. There was no effect of phosphite applied alone or associated with the fungicide epoxiconazole + pyraclostrobin at different times on mildew. Acibenzolar-S-methyl controlled, on average, 70% powdery mildew. Phosphites applied alone and/or associated with the fungicide had an effect on leaf rust, reducing the severity by 59 and 62%, compared to control. Applications of phosphites alone did not affect the yield components. |
publisher |
Grupo Paulista de Fitopatologia |
publishDate |
2018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052018000200132 |
work_keys_str_mv |
AT santoshellenaparecidaarantesdos phosphitesandacibenzolarsmethylaloneandcombinedwithfungicidesforthecontrolofbiotrophicpathogensofwheat AT priamaristelladalla phosphitesandacibenzolarsmethylaloneandcombinedwithfungicidesforthecontrolofbiotrophicpathogensofwheat AT silvaolavocorreada phosphitesandacibenzolarsmethylaloneandcombinedwithfungicidesforthecontrolofbiotrophicpathogensofwheat AT maydemiolouiselarissa phosphitesandacibenzolarsmethylaloneandcombinedwithfungicidesforthecontrolofbiotrophicpathogensofwheat |
_version_ |
1756388170941857792 |