Abstract:

This study was carried out to determine the main weed species, their distributions and densities in wheat growing areas of Erzincan-Otlukbeli county in 2006. In this areas, there was no herbicides application in wheat so that wheat growers did not have any equepments for chemical control of weeds. This is a case study which was done in a small microclimate areas in where no chemical control was used against weed species. Based on the results of surveys, which were done in 36 wheat fields by using devided sampling methods, 51 different weed species belinging to the 20 families were determined. In survey area, main weed species were as follows; Caucalis platycarpos L. (small bur parsley), Secale cereale L. (rye), Centaurea deprassa Bieb. (dark blue bottle), Cirsium arvense (L.) Scop. (canada thistle), Melampyrum arvense L. (puple cow wheat), Agrostemma githago L. (corn corkle), Polygonum aviculare L. (prostrate knotweed), Convolvulus arvensis L. (field bindweed), Vaccaria pyramıdata Medik. (cow corkle), Bromus sterilis L. (barren brome). Additionaly C. deprassa, C. platycarpos, A. githago, M. arvense, S. cereale, C. arvense, C. arvensis, P. aviculare, Papaver rhoeas L. (corn pappy), C. orientalis were the most frequently observed weed species respectively.

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