摘要：Based on the review of longterm studies (2008-2015) of weed flora in various organic crops in Vojvodina (cabbage,lettuce,soybean,onion,carrots,maize,marigold,dill,buckwheat,potato,basil,lucerne),a total of 88 plant species were found,53 (60%) of which are alien (non-native).By analyzing the invasiveness status of alien taxa according to different categorizations,we highlight the presence of 14 invasive alien species (9 neophytes;5 archeophytes).The presence of 4 taxa,considered invasive according to all of the categorizations analyzed,stands out: Ambrosia artemisiifolia,Conyza canadensis,Erigeron annuus and Galinsoga parviflora.However,according to the databases of invasive plants in the territory of Serbia,6 more species,are considered invasive,namely: Amaranthus retroflexus,Datura stramonium,Echinochloa crus-galli,Portulaca oleracea,Sorghum halepense and Veronica persica,of which only E.crus-galli is categorized as highly invasive.Of all the taxa that are considered highly invasive in Serbia,only A.artemisiifolia (58%) and E.crus-galli (33%) are present in organic crops with a higher frequency of occurrence,meaning that the organic crops in Vojvodina currently do not represent the main refuge for these species.However,due to their exceptional ability to rapidly spread and occupy new spaces,continuous research of invasive plants is needed,not only of those which are categorized as such in Serbia,but also of those which are considered as invasive in the wider European region.
其他摘要：Na osnovu višegodišnjih istraživanja korovske flore u različitim organskim usevima (kupus,salata,soja,crni luk,šargarepa,kukuruz,neven,mirođija,heljda,krompir,bosiljak i lucerka) u Vojvodini,konstatovano je prisustvo ukupno 88 biljnih vrsta,od čega su 53 (60%) strane (alohtone).Analizirajući invazivni status alohtonih taksona prema različitim kategorizacijama,izdvajamo prisustvo 14 invazivnih vrsta (9 neofite;5 arheofite).Ističe se prisustvo 4 taksona,životne forme terofita (T4),koji su prema svim analiziranim kategorizacijama invazivni,a to su: Ambrosia artemisiifolia,Conyza canadensis,Erigeron annuus i Galinsoga parviflora.Međutim,prema našim bazama invazivnih biljaka na području Srbije,još 6 vrsta ima status invazivnih vrsta,a to su: Amaranthus retroflexus,Datura stramonium,Echinochloa crus-galli,Portulaca oleracea,Sorghum halepense i Veronica persica,od kojih kod nas samo E.crus-galli,ima status jako invazivne.Od taksona koji imaju status jako invazivnih u Srbiji,u organskim usevima prisutni su sa većom frekvencijom pojavljivanja samo A.artemisiifolia (58%) i E.crus-galli (33%) što znači da,za sada,organski usevi u Vojvodini,ne predstavljaju glavno utočište ovim vrstama.Međutim,zbog njihove izuzetne sposobnosti brzog širenja i osvajanja novih prostora,potrebna su kontinuirana istraživanja invazivnih biljaka i to ne samo onih koje su kod nas tako kategorisane,već i onih koje u širem regionu Evrope već imaju status invazivnih vrsta.
