BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

In Chile, the main factor in red clover {Trifolium pretense L.) stand decline is fusarium-root rot, which results in a reduction in yield. Fusarium oxysporum (Schlect.) is the most prevalent pathogen recovered from diseased red clover roots plants. Agronomical management of red clover includes appli...

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Autores principales:	Ceballos,Ricardo, Cofre,Ximena, Quiroz,Andrés, Espinoza,Nelson, Palma,Graciela
Lenguaje:	English
Publicado:	Sociedad Chilena de la Ciencia del Suelo 2009
Materias:	herbicide fusariosis legume plant diseases
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912009000200006
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spelling	oai:scielo:S0718-279120090002000062009-09-09BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONSCeballos,RicardoCofre,XimenaQuiroz,AndrésEspinoza,NelsonPalma,Graciela herbicide fusariosis legume plant diseases In Chile, the main factor in red clover {Trifolium pretense L.) stand decline is fusarium-root rot, which results in a reduction in yield. Fusarium oxysporum (Schlect.) is the most prevalent pathogen recovered from diseased red clover roots plants. Agronomical management of red clover includes application of broadleaf herbicides such as MCPA and bentazon. This study was conducted to evaluate the effects of bentazon and bentazon/MCPA mixture on phytotoxicity and root rot as caused by F. oxysporum on red clover, under greenhouse conditions. In addition, in vitro mycelial growth and conidial germination of F. oxysporum was studied. A reduction of 40% in crown diameter and 57% shoot dry weight was observed 30 days after treatment with a high rate of bentazon/MCPA and F. oxysporum inoculum. The bentazon - F. oxysporum interaction reduced root dry weight by 57% at IX rate and 42% with 2X rate at 20 and 30 of evaluation. Bentazon caused a significant increase in phytotoxicity at the high rate and the mixture bentazon/MCPA increased root rot severity and phytotoxicity at the high rate. The conidial germination and mycelial growth were significantly reduced by bentazon/MCPA. These results suggest that red clover growth and persistence could be adversely affected by F. oxysporum after bentazon and bentazon/MCPA application.info:eu-repo/semantics/openAccessSociedad Chilena de la Ciencia del SueloRevista de la ciencia del suelo y nutrición vegetal v.9 n.2 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912009000200006en10.4067/S0718-27912009000200006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	herbicide fusariosis legume plant diseases
spellingShingle	herbicide fusariosis legume plant diseases Ceballos,Ricardo Cofre,Ximena Quiroz,Andrés Espinoza,Nelson Palma,Graciela BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
description	In Chile, the main factor in red clover {Trifolium pretense L.) stand decline is fusarium-root rot, which results in a reduction in yield. Fusarium oxysporum (Schlect.) is the most prevalent pathogen recovered from diseased red clover roots plants. Agronomical management of red clover includes application of broadleaf herbicides such as MCPA and bentazon. This study was conducted to evaluate the effects of bentazon and bentazon/MCPA mixture on phytotoxicity and root rot as caused by F. oxysporum on red clover, under greenhouse conditions. In addition, in vitro mycelial growth and conidial germination of F. oxysporum was studied. A reduction of 40% in crown diameter and 57% shoot dry weight was observed 30 days after treatment with a high rate of bentazon/MCPA and F. oxysporum inoculum. The bentazon - F. oxysporum interaction reduced root dry weight by 57% at IX rate and 42% with 2X rate at 20 and 30 of evaluation. Bentazon caused a significant increase in phytotoxicity at the high rate and the mixture bentazon/MCPA increased root rot severity and phytotoxicity at the high rate. The conidial germination and mycelial growth were significantly reduced by bentazon/MCPA. These results suggest that red clover growth and persistence could be adversely affected by F. oxysporum after bentazon and bentazon/MCPA application.
author	Ceballos,Ricardo Cofre,Ximena Quiroz,Andrés Espinoza,Nelson Palma,Graciela
author_facet	Ceballos,Ricardo Cofre,Ximena Quiroz,Andrés Espinoza,Nelson Palma,Graciela
author_sort	Ceballos,Ricardo
title	BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
title_short	BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
title_full	BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
title_fullStr	BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
title_full_unstemmed	BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS
title_sort	bentazon-mcpa effect on fusarium oxysporum root rot on trifolium pratense in greenhouse conditions
publisher	Sociedad Chilena de la Ciencia del Suelo
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912009000200006
work_keys_str_mv	AT ceballosricardo bentazonmcpaeffectonfusariumoxysporumrootrotontrifoliumpratenseingreenhouseconditions AT cofreximena bentazonmcpaeffectonfusariumoxysporumrootrotontrifoliumpratenseingreenhouseconditions AT quirozandres bentazonmcpaeffectonfusariumoxysporumrootrotontrifoliumpratenseingreenhouseconditions AT espinozanelson bentazonmcpaeffectonfusariumoxysporumrootrotontrifoliumpratenseingreenhouseconditions AT palmagraciela bentazonmcpaeffectonfusariumoxysporumrootrotontrifoliumpratenseingreenhouseconditions
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BENTAZON-MCPA EFFECT ON Fusarium oxysporum ROOT ROT ON Trifolium pratense IN GREENHOUSE CONDITIONS

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