摘要：A research of weed flora of row crops (maize,sunflower and soybean) was conducted at 49 localities in Mačva during the vegetation seasons of 2005,2006 and 2007.The examined area totalled 86,000 ha,of which arable soil accounted for 68,400 ha.Maize is grown on 23,392 ha,soybean on 1,500 ha and sunflower on 300 ha.Taxonomical examination of weed flora indicated a relatively high diversity.A total of 148 species of vascular plants falling in 105 genera,37 families and two divisions were found.The division Equisetophyta is represented by one weed species,and the division Magnoliophyta by 147 species belonging to 104 genera and 36 families.The class Magnoliopsida comprises 132 species from 93 genera and 34 families,and the class Liliopsida 15 species,11 genera and 2 families.In the flora of row crops in Mačva,representatives of the families Asteraceae,Fabaceae,Lamiaceae and Poaceae predominate.An analysis of the spectrum of weed flora in Mačva row crops indicates a predominant presence (68.91%) of plants belonging to the most frequent floral elements (Eurasian 39.86%,cosmopolitan 11.48%,circumpolar 6.76% and adventive 10.81%).The group of floral elements of low incidence in the analyzed flora accounts for 31.05% (Central European 14.28%,sub-Mediterranean 14.28%).The data obtained are significant in terms of enabling successful protection of crops,especially by application of herbicides in the growing of maize,sunflowers and soybeans.
其他摘要：Floristička ispitivanja korovske flore okopavina Mačve (kukuruza,suncokreta i soje) obavljena su tokom vegetacionog perioda 2005,2006.i 2007.godine u Mačvi na 49 lokaliteta.Ispitivano područje obuhvata površinu od 86000 ha,od čega obradivoj površini pripada 68400 ha.Kukuruz se gaji na 23392 ha,soja na 1500 ha,a suncokret na 300 ha.Na osnovu taksonomskih proučavanja korovske flore zapaža se relativno veliki diverzitet.Utvrđeno je prisustvo 148 vrsta vaskularnih biljaka obuhvaćenih sa 105 rodova,37 familija i dva odeljka.Odeljak Equisetophyta predstavljen je jednom korovskom vrstom,odeljak Magnoliophyta sa 147 vrsta,obuhvaćenih sa 104 roda i 36 familija.Klasi Magnoliopsida pripadaju 132 vrste sa 93 roda i 34 familije,a klasa Liliopsida predstavljena je sa 15 vrsta,11 rodova i 2 familije.U flori okopavina Mačve dominiraju predstavnici familija Asteraceae,Fabaceae,Lamiaceae i Poaceae.Analiza spektra korovske flore okopavina Mačve ukazuje na dominantnu prisutnost (68,91%) biljaka iz grupe flornih elemenata širokog rasprostranjenja (evroazijska grupa 39,86%,kosmopolitska 11,48%,cirkumpolarna 6,76% i adventivna 10,81%).Grupa flornih elemenata užeg rasprostranjenja u analiziranij flori prisutna je sa 31,05% (srednjoevropska 14,28%,submediteranska 14,28%).Dobijeni podaci su značajni za uspešnu zaštitu useva od korova,a posebno za primenu herbicida u gajenju kukuruza,suncokreta i soje.
