@article{article_508191, title={Ankara İli Aspir (Carthamus tinctorius L.) Ekiliş Alanlarında Bulunan Yabancı Otların Tespiti}, journal={Turkish Journal of Weed Science}, volume={18}, pages={19–23}, year={2015}, author={Serim, Ahmet Tansel and Asav, Ünal and Türkseven, Süleyman}, keywords={Safflower, weed, survey, frequency}, abstract={This study was conducted in 2014 and 2015 to determine weed species in safflower cultivation area in Ankara province. The surveys were conducted in 112 sampling areas of Ankara province (Bala, Gölbaşı, Haymana, Polatlı and Şereflikoçhisar district). This study was performed in 219.519 da area which was presented approximately all of the safflower fields in Ankara. The areas of safflowers surveyed were randomly selected according to representing at least 2% of all fields. The frame, 1/4 m2 size, was used at least 16 times depending on the size of the field. The weeds in each sampling frame were counted, and their frequency and density were determinated. Thirty five weed species belong to sixteen families were identified in the safflower fields. The most commonly found families were Asteraceae (10 species), Poaceae (5 species) and Brassicaceae (3 species), respectively. The most common weed species were Sinapis arvensis L., Avena fatua L., Convolvulus arvensis L., Xanthium strumarium L., Triticum aestivum L. and Amaranthus retroflexus L. in safflower fields surveyed}, number={1}, publisher={Türkiye Herboloji Derneği}