DETERMINATION of the EFFECTS of TEBUCONAZOLE APPLICATIONS on PEPPER SEEDLING QUALITY by MORPHOLOGICAL and MOLECULAR METHODS

In this study, the effects of Tebuconazole substance on pepper seedling quality and the retrotransposing mobility caused in the plant were investigated using morphological and molecular methods. More specifically, 25, 50, 75, 100, 125, 150 and 175 ppm concentrations of Tebuconazole were applied to the seedlings in the form of leaf spray. According to the findings of this research, it was determined that seedling height and stem height varied significantly according to the doses. It was also determined that all dosage applications in pepper seedlings prevented excessive and unnecessary elongation in seedling and stem heights. Stem dry matter ratio, leaf dry matter ratio, and root dry matter ratio were also determined to vary significantly in accordance with the doses. Furthermore, it was observed that the increase in the dose rate applied decreased the genome stability (GTS) and the rate of polymorphism increased. Dose application of 25 ppm did not cause any change in polymorphism rate and GTS value. When the data obtained from the morphological and molecular methods are collectively evaluated, dose applications up to 75 ppm can reportedly be used in practice as it positively affects the seedling quality and also impacts the stability of the genome at a minimum level. © 2020 Parlar Scientific Publications. All rights reserved.