Abstract:

Cyperus difformis L. is one of the major foreign herbs that have problems in the steel production fields around the world. In the framework of the study aimed at determining the impact on the existing resistance phenomenon by determining the morphological and genetic diversity of the species in our country, 50 populations have been studied in order to represent the steel outskirts. 13 different parameters were studied to determine the morphological differences. The results of the analysis showed significant morphological differences between populations. Genetic variation between populations was determined by the analysis of the randomly multiplied polymorphic DNA using 17 oligonucleotide primers. According to the dendogram information created using Average Linkage 0. It was found that the populations studied at a genetic distance of 25 were divided into two main groups. Differences between the populations studied in the morphological and molecular analyses were identified in some quantitative character points. While similarities were found in levels that were not forgotten morphologically between populations growing in different regions, genetic diversity was found higher. This situation indicates a high potential at the gene transfer point. Adaptation to the geographical fields, the transfer of seeds by humans and instruments between regions and the resistance developed by foreign herbs to herbicides used in foreign herbicide combat methods.  In this context c. In addition to the reduction of the movement of difformis seeds, the good monitoring of steel seed traffic and the use of herbicides, the focus should be on field management practices such as cultural methods. It should not be forgotten that the measures to be taken at this point are important in terms of integrated combat strategies.

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