Weed Species Composition of Agrophytocenoses in Altai Krai

The article reviews the weed species composition of oat, sunflower, wheat, buckwheat, rapeseed and flax agrophytocenoses on 390 fields in 21 districts Altai Krai: Aleyskiy, Bistroistokskiy, Baevskiy, Burlinskiy, Kamenskiy, Kosikhinskiy, Krutikhinskiy, Kytmanovskiy, Loktevskiy, Mamontovskiy, Novichikhinskiy, Pankrushikhinskiy, Rebrikhinskiy, Rubtsovskiy, Shipunovskiy, Sovetskiy, Tretyakovskiy, Troitskiy, Tyumentsevskiy, Zarinskiy, Zonalniy. studied were surveyed by route method, which involved study plot examining it along two diagonals four sides, when area did not exceed 20.0 hectares. Larger divided into plots hectares before survey. areas adjacent to roads examined most carefully, since is often from road that field becomes infested. We used ArcGis program compile original maps for main plant species. It was found out 45 encountered, only 10 play a significant role infestation have high frequency rate: aboriginal Convolvulus arvensis, Amaranthus retroflexus, Euphorbia virgata, Lathyrus tuberosus, Chenopodium album , as well such adventive Fallopia convolvulus, Setaria pumila, Panicum miliaceum subsp. ruderale, Avena fatua Echinochloa crusgalli . largest number accounts Poaceae family (33.3%). Brassicaceae characterized slightly lower percentage participation adventitious flora (27.7%). Other families are so represented (by 1-2 each).