Molecular characterization of Convolvulus arvensis species in different locations of Türkiye and determination of dose-response to 2,4-D herbicide

Abstract

Field bindweed (Convolvulus arvensis L.) is an important weed species on agricultural areas in Türkiye and worldwide. The study was conducted in 2018-2019 and seeds from 16 different provinces in Türkiye (Adana, Ankara, Çanakkale, Denizli, Diyarbakır, Erzurum, Hatay, İzmir, Karaman, Kayseri, Konya, Malatya, Samsun, Şanlıurfa, Tekirdağ and Uşak) were collected and germinated under greenhouse conditions (19/29°C day/night) and molecular characterization of the samples was performed. As a result of comparing the samples with a specific reference from NCBI gene bank, it was found that the similarity ratios were close to each other but formed different groups. In the study, it was determined that the samples from Adana, Konya and Samsun belonged to different groups in terms of similarity. Then, the dose-response rates of these samples to 2,4-D, which is licensed against field bindweed, were determined. In the dose-response analysis of the herbicides, ED50 values of 131.93, 115.42 and 141.89 g.a.i/ha were determined for Adana, Konya and Samsun, respectively. As a result of the study, it was found that the dose-response of field bindweed in Adana, Konya and Samsun provinces, which belong to different molecular groups, to 2,4-D herbicides is close to each other but has different values.