Determination of segetal flora in wheat fields and investigation of some important weeds growth stages in Igdir province

This study was carried out in 2017-2018 with the purpose of determining the weed species, density (plant/m2) and frequency of the weeds in wheat fields of Iğdır province and its districts central, Aralık, Karakoyunlu and Tuzluca during May and June. One square meter quadrats were placed randomly four times in each field and, weed species inside the quadrants were counted and their percentage coverage areas were determined. According to the survey results, the top three largest families were found to be Asteraceae (18), Brassicaceae, (13) and Poaceae (13). Investigated weed species were Convolvulus arvensis L., Cirsium arvense (L.) Scop., Sinapis arvensis L., Galium aparine L., Cerastium sp., Chenopodium album L., Myagrum perfoliatum L. Avena fatua L. Secale cereale L., Polygonum aviculare L. for development of biology according to BBCH scale.