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Physiological parameters as a basis for differentiating between Chenopodium album L. plants resistant or susceptible to atrazine

dc.creatorPavlović, Danijela
dc.creatorVrbničanin, Sava
dc.creatorElezović, Ibrahim
dc.creatorMarisavljević, Dragana
dc.creatorBožić, Dragana
dc.date.accessioned2019-04-04T15:51:07Z
dc.date.available2019-04-04T15:51:07Z
dc.date.issued2005
dc.identifier.issn1820-3949
dc.identifier.urihttps://plantarum.izbis.bg.ac.rs/handle/123456789/34
dc.description.abstractA possibility of using physiological parameters for differentiating resistant and susceptible plants was investigated. Intensity of transpiration diffusive resistance and chlorophyll concentrations were measured. The experiments were carried out in the greenhouse. Seeds were collected from an area continually treated with atrazine over a period often years (locality Veliki Crljeni) and from treatment-free fields (locality Belgrade). A referent resistant population was obtained from Great Britain. Atrazine was applied (2,4 and 8 kg/ha) when plants were in a 2-4 leaf growth stage. Parameters were measured on the 7th and 15th post-treatment days. The results showed no significant change in the physiological parameters of the treated referent plants. On the other hand, treated plants from the localities of Veliki Crljeni and Belgrade showed a significant decrease in the intensity of transpiration and chlorophyll concentration, and increase in diffusive resistance, compared to untreated plants. Comparing the parameters analyzed, statistically significant differences were found between the domestic populations and the resistant referent population. Based on the variations found in plant responses to atrazine treatments (intensity of transpiration and diffusive resistance) in the populations investigated, we believe that assessment of these physiological parameters alone cannot provide sufficiently reliable data for differentiating between resistant and susceptible plants.en
dc.description.abstractU radu je ispitivana mogućnost korišćenja fizioloških parametara kao osnove za razdvajanje rezistentnih od osetljivih populacija Chenopodium album L. na atrazin. Praćeni su intenzitet transpiracije, otpor prema difuziji i relativni sadržaj ukupnog hlorofila. Semena su prikupljena sa površine na kojoj je atrazin korišćen 10 godina (lokalitet Veliki Crljeni) i sa površine na kojoj nikad nisu primenjivani herbicidi (lokalitet Beograd). Referentna rezistentna populacija dobijena je iz laboratorije iz Velike Britanije. Biljke su gajene u kontrolisanim uslovima i tretirane atrazinom (2, 4 i 8 kg/ha) u fazi 2-4 lista. Promene ispitivanih parametara su merene 7. i 15. dana od primene atrazina. Dobijeni rezultati su pokazali da kod referentne rezistentne populacije tretirane herbicidom nema značajnih promena na nivou posmatranih parametara. Međutim, kod populacija sa lokaliteta V.Crljeni i Beograd došlo je do značajnog smanjenja intenziteta transpiracije i relativnog sadržaja hlorofila, i do povećanja otpora prema difuziji. Statistička obrada podataka je pokazala da se na osnovu svih parametara može izvršiti razdvajanje osetljivih i rezistentih populacija Ch. album prema atrazinu, s tim što se relativni sadržaj ukupnog hlorofila u poređenju sa druga dva parametra pokazao kao pouzdaniji parametar. Prirodna dnevna dinamika fizioloških procesa i njihova zavisnost od velikog broja činilaca (sadržaja 07 i CO, u vazduhu, vlažnosti vazduha, otvorenosti stoma i sl.) umanjuju pouzdanost intenziteta transpiracije i otpor prema difuziji kao parametara.sr
dc.publisherInstitute of Pesticides and Environmental Protection
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-sa/4.0/
dc.sourcePesticidi i fitomedicina
dc.subjectresistanceen
dc.subjectdiffusive resistanceen
dc.subjectintensity of transpirationen
dc.subjectChlorophyll concentrationen
dc.subjectChenopodium album L.en
dc.subjectrezistentnostsr
dc.subjectotpor prema difuzijisr
dc.subjectintenzitet transpiracijesr
dc.subjectsadržaj hlorofilasr
dc.subjectCenopodium album L.sr
dc.titleFiziološki parametri kao osnova razdvajanja rezistentnih od osetljivih populacija Chenopodium album L. prema atrazinusr
dc.titlePhysiological parameters as a basis for differentiating between Chenopodium album L. plants resistant or susceptible to atrazineen
dc.typearticle
dc.rights.licenseBY-SA
dc.citation.epage246
dc.citation.issue4
dc.citation.other20(4): 241-246
dc.citation.spage241
dc.citation.volume20
dc.type.versionpublishedVersion
dc.identifier.fulltexthttps://plantarum.izbis.bg.ac.rs//bitstream/id/1476/32.pdf
dc.identifier.rcubconv_29


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