Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma

Wild oat (Avena fatua L.) is a problematic weed of wheat (Triticum aestivum L.) in Pakistan. The present study was designed to evaluate the herbicidal activity of culture filtrates of four Trichoderma spp., namely T. harzianum, T. pseudokoningii, T. reesei and T. viride, against this weed species. I...

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Autores principales:	Javaid,Arshad, Ali,Sajjad
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2011
Materias:	Alternative herbicides fungal metabolites
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200004
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spelling	oai:scielo:S0718-583920110002000042018-10-01Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of TrichodermaJavaid,ArshadAli,Sajjad Alternative herbicides fungal metabolites Wild oat (Avena fatua L.) is a problematic weed of wheat (Triticum aestivum L.) in Pakistan. The present study was designed to evaluate the herbicidal activity of culture filtrates of four Trichoderma spp., namely T. harzianum, T. pseudokoningii, T. reesei and T. viride, against this weed species. In a laboratory bioassay, original (100%) and diluted (50%) culture filtrates of T. harzianum and T. pseudokoningii significantly reduced shoot and root growth of A. fatua seedlings. Only original culture filtrates of T. reesei exhibited significant effects, while the effect of filtrates of T. viride was insignificant against shoot and root growth of the target weed species. Generally, original concentrations of culture filtrates of all Trichoderma spp., except T. harzianum, significantly reduced various parameters of root and shoot growth of wheat seedlings. In foliar spray bioassay, pot-grown 1-wk and 2-wk old A. fatua and wheat seedlings were sprayed with 100% culture filtrates of the four Trichoderma spp. thrice with 5 d interval each. Culture filtrates of all except T. viride significantly diminished root and shoot biomass of A. fatua plants in 1-wk old plants. The effect of foliar spray on root and shoot growth of wheat was insignificant. Present study concludes that metabolites of T. harzianum, T. reesei and T. pseudokoningii contain herbicidal constituents for the management of A. fatua.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.71 n.2 20112011-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200004en10.4067/S0718-58392011000200004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Alternative herbicides fungal metabolites
spellingShingle	Alternative herbicides fungal metabolites Javaid,Arshad Ali,Sajjad Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
description	Wild oat (Avena fatua L.) is a problematic weed of wheat (Triticum aestivum L.) in Pakistan. The present study was designed to evaluate the herbicidal activity of culture filtrates of four Trichoderma spp., namely T. harzianum, T. pseudokoningii, T. reesei and T. viride, against this weed species. In a laboratory bioassay, original (100%) and diluted (50%) culture filtrates of T. harzianum and T. pseudokoningii significantly reduced shoot and root growth of A. fatua seedlings. Only original culture filtrates of T. reesei exhibited significant effects, while the effect of filtrates of T. viride was insignificant against shoot and root growth of the target weed species. Generally, original concentrations of culture filtrates of all Trichoderma spp., except T. harzianum, significantly reduced various parameters of root and shoot growth of wheat seedlings. In foliar spray bioassay, pot-grown 1-wk and 2-wk old A. fatua and wheat seedlings were sprayed with 100% culture filtrates of the four Trichoderma spp. thrice with 5 d interval each. Culture filtrates of all except T. viride significantly diminished root and shoot biomass of A. fatua plants in 1-wk old plants. The effect of foliar spray on root and shoot growth of wheat was insignificant. Present study concludes that metabolites of T. harzianum, T. reesei and T. pseudokoningii contain herbicidal constituents for the management of A. fatua.
author	Javaid,Arshad Ali,Sajjad
author_facet	Javaid,Arshad Ali,Sajjad
author_sort	Javaid,Arshad
title	Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
title_short	Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
title_full	Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
title_fullStr	Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
title_full_unstemmed	Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma
title_sort	alternative management of a problematic weed of wheat avena fatua l. by metabolites of trichoderma
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200004
work_keys_str_mv	AT javaidarshad alternativemanagementofaproblematicweedofwheatavenafatualbymetabolitesoftrichoderma AT alisajjad alternativemanagementofaproblematicweedofwheatavenafatualbymetabolitesoftrichoderma
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Alternative management of a problematic weed of wheat Avena fatua L. by metabolites of Trichoderma

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