Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi

The parasitic weed species Striga asiatica (L.) Kuntze is one of major constraints in maize production in Malawi. Studies were conducted from 1999/2000 to 2001/2002 seasons to evaluate the effects of seed dressing with imazapyr (an acetolactate synthase [ALS] - inhibiting herbicide) at 0 and 45 g ha...

Full description

Bibliographic Details
Authors: Kabambe, V.H., Kanampiu, F., Nambuzi, S.C., Kauwa, A.E.
Format: article
Status:Published version
Publication Date:2007
Country:México
Institution:Centro Internacional de Mejoramiento de Maíz y Trigo
Repository:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/3187
Online Access:http://hdl.handle.net/10883/3187
Access Level:Open access
Keyword:AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Acetolactate Synthase
STRIGA ASIATICA
IMAZAPYR
ZEA MAYS
id MX_4533544cccc2ff148f05608c8eb73df7
oai_identifier_str oai:repository.cimmyt.org:10883/3187
network_acronym_str MX
network_name_str México
repository_id_str
spelling Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in MalawiKabambe, V.H.Kanampiu, F.Nambuzi, S.C.Kauwa, A.E.AGRICULTURAL SCIENCES AND BIOTECHNOLOGYAcetolactate SynthaseSTRIGA ASIATICAIMAZAPYRZEA MAYSThe parasitic weed species Striga asiatica (L.) Kuntze is one of major constraints in maize production in Malawi. Studies were conducted from 1999/2000 to 2001/2002 seasons to evaluate the effects of seed dressing with imazapyr (an acetolactate synthase [ALS] - inhibiting herbicide) at 0 and 45 g ha-1 and two fertilizer rates (0 and 69N:21P2O5:0+4S kg ha-1) on maize with ALS target site resistance on Striga suppression and grain yield at Chitedze Research Station and farmers? fields. In the first season, imazapyr suppressed Striga emergence across all sites but did not increase yield. In contrast, fertilizer application had no effect on Striga emergence (P>0.05), but significantly increased yield (P<0.05). In the second season results were similar, but in addition the use of herbicide increased yield. In the third season a local hybrid (SC627) was included to compare yield potential of the untreated Imazapyr Resistant (IR) variety. The local check yielded higher than the IR hybrid with or without herbicide treatment, but sustained the highest emergence of witchweeds. The untreated IR hybrid had less Striga than SC627 and more than the treated. Overall, fertilizer use is found to be the single most important factor in increasing maize yield under S. asiatica infection, while herbicide use is important for reducing emergence.687-691Academic Journalshttp://www.academicjournals.org/ajar/abstracts/abstracts/abstracts2007/Dec/Kabambe%20et%20al.htm2013-06-30T05:24:48Z2013-06-30T05:24:48Z2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePDFapplication/pdf1991-637X­http://hdl.handle.net/10883/3187122African Journal of Agricultural Researchreponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishMalawiMalawiCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.Open Accessinfo:eu-repo/semantics/openAccessoai:repository.cimmyt.org:10883/31872024-10-11T19:57:49Z
dc.title.none.fl_str_mv Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
title Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
spellingShingle Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
Kabambe, V.H.
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Acetolactate Synthase
STRIGA ASIATICA
IMAZAPYR
ZEA MAYS
title_short Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
title_full Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
title_fullStr Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
title_full_unstemmed Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
title_sort Evaluation of the use of herbicide (Imazapyr) and fertilizer application in integrated management of Striga asiatica in maize in Malawi
dc.creator.none.fl_str_mv Kabambe, V.H.
Kanampiu, F.
Nambuzi, S.C.
Kauwa, A.E.
author Kabambe, V.H.
author_facet Kabambe, V.H.
Kanampiu, F.
Nambuzi, S.C.
Kauwa, A.E.
author_role author
author2 Kanampiu, F.
Nambuzi, S.C.
Kauwa, A.E.
author2_role author
author
author
dc.subject.none.fl_str_mv AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Acetolactate Synthase
STRIGA ASIATICA
IMAZAPYR
ZEA MAYS
topic AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Acetolactate Synthase
STRIGA ASIATICA
IMAZAPYR
ZEA MAYS
description The parasitic weed species Striga asiatica (L.) Kuntze is one of major constraints in maize production in Malawi. Studies were conducted from 1999/2000 to 2001/2002 seasons to evaluate the effects of seed dressing with imazapyr (an acetolactate synthase [ALS] - inhibiting herbicide) at 0 and 45 g ha-1 and two fertilizer rates (0 and 69N:21P2O5:0+4S kg ha-1) on maize with ALS target site resistance on Striga suppression and grain yield at Chitedze Research Station and farmers? fields. In the first season, imazapyr suppressed Striga emergence across all sites but did not increase yield. In contrast, fertilizer application had no effect on Striga emergence (P>0.05), but significantly increased yield (P<0.05). In the second season results were similar, but in addition the use of herbicide increased yield. In the third season a local hybrid (SC627) was included to compare yield potential of the untreated Imazapyr Resistant (IR) variety. The local check yielded higher than the IR hybrid with or without herbicide treatment, but sustained the highest emergence of witchweeds. The untreated IR hybrid had less Striga than SC627 and more than the treated. Overall, fertilizer use is found to be the single most important factor in increasing maize yield under S. asiatica infection, while herbicide use is important for reducing emergence.
publishDate 2007
dc.date.none.fl_str_mv 2007
2013-06-30T05:24:48Z
2013-06-30T05:24:48Z
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 1991-637X­
http://hdl.handle.net/10883/3187
identifier_str_mv 1991-637X­
url http://hdl.handle.net/10883/3187
dc.language.none.fl_str_mv English
language_invalid_str_mv English
dc.rights.none.fl_str_mv Open Access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Open Access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv PDF
application/pdf
dc.coverage.none.fl_str_mv Malawi
Malawi
dc.publisher.none.fl_str_mv Academic Journals
http://www.academicjournals.org/ajar/abstracts/abstracts/abstracts2007/Dec/Kabambe%20et%20al.htm
publisher.none.fl_str_mv Academic Journals
http://www.academicjournals.org/ajar/abstracts/abstracts/abstracts2007/Dec/Kabambe%20et%20al.htm
dc.source.none.fl_str_mv 12
2
African Journal of Agricultural Research
reponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
instname:Centro Internacional de Mejoramiento de Maíz y Trigo
instacron:CIMMYT
instname_str Centro Internacional de Mejoramiento de Maíz y Trigo
instacron_str CIMMYT
institution CIMMYT
reponame_str Repositorio Institucional de Publicaciones Multimedia del CIMMYT
collection Repositorio Institucional de Publicaciones Multimedia del CIMMYT
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858175092195852288
score 15,812429

Similar Items