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dc.creatorElezović, Igor
dc.creatorDatta, Avishek
dc.creatorVrbničanin, Sava
dc.creatorGlamočlija, Đorđe
dc.creatorSimić, Milena
dc.creatorMalidza, Goran
dc.creatorKnežević, Stevan Z.
dc.date.accessioned2019-05-16T12:14:15Z
dc.date.available2019-05-16T12:14:15Z
dc.date.issued2012
dc.identifier.issn0378-4290
dc.identifier.urihttp://rik.mrizp.rs/handle/123456789/419
dc.description.abstractWith an increase in the use of imidazolinone (IMI)-resistant sunflower, it is important to determine the influence of weed interference and herbicide presence on seed yield and yield components of sunflower. The objective of this study was to determine the effect of different periods of weed presence on seed yield and yield components of IMI-resistant sunflower grown with and without ore-emergence (PRE) herbicide. Field studies were conducted in 2008 and 2009 at three locations in Serbia and one location in Nebraska, USA. A four-parameter log-logistic model described relationship between the crop yield and yield components to increasing duration of weed presence. Sunflower yield and yield components varied between years and among locations. Increasing periods of weed interference decreased yield and yield components of sunflower; however, the reductions were greater without PRE herbicide compared to the PRE herbicide treated plots. The length of time weeds could remain in the crop grown without PRE herbicide ranged from 14 to 26 days after emergence (DAE), which corresponded to the V3 (three leaves) to V4 growth stages on the basis of the 5% acceptable yield loss level. The duration of time that weeds could remain in the crop grown with PRE herbicide ranged from 25 to 37 DAE, which corresponded to the V6-V8 growth stages of sunflower. Practical implication of this study is that post-emergence weed control in IMI-resistant sunflower grown with PRE herbicide can be delayed approximately by two weeks compared to the crop grown without PRE herbicide.en
dc.publisherElsevier Science Bv, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/46008/RS//
dc.rightsrestrictedAccess
dc.sourceField Crops Research
dc.subjectWeed interferenceen
dc.subjectCrop competitionen
dc.subjectCrop yield lossen
dc.subjectClearfield (R) production systemsen
dc.titleYield and yield components of imidazolinone-resistant sunflower (Helianthus annuus L.) are influenced by pre-emergence herbicide and time of post-emergence weed removalen
dc.typearticle
dc.rights.licenseARR
dc.citation.volume128
dc.citation.spage137
dc.citation.epage146
dc.citation.epage
dc.citation.other128: 137-146
dc.citation.rankM21
dc.identifier.wos000302762700017
dc.identifier.doi10.1016/j.fcr.2011.12.020
dc.identifier.scopus2-s2.0-84857432566
dc.type.versionpublishedVersion


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