The effects of cycocel (CCC) applications at different doses and periods on the yield and quality of jerusalem artichoke (Helianthus tuberosus L.)

This research the effcts of CCC applications and doses on yield and yield components of Jerusalem artichoke were investigated was conducted. The research was carried out in Isparta University of Applied Sciences, Faculty of Agriculture, research and application Farm trial land in 2020. Jerusalem artichoke seeds and CCC were used as materials in the experiment. The experiment was carried out with 3 replications according to the factorial arrangement in the randomized blocks experimental plan. As the first factor, the application times were considered as the second factor, the application doses. As a result of the study, CCC application times and doses had a significant effect on plant height, leaf length and width, tuber yield per decare, marketable tuber yield and specific gravity of Jerusalem artichoke. While the plant height of the plants without CCC was 125.4 cm, the plant height was shortened by 34% due to the increase in CCC application doses. CCC application dose and application time did not have a significant effect on the stem diameter of the plant. Leaf size reductions were observed with CCC applications. Tuber yield was 2630.2 kg per decare in plants without CCC application, while it was 3490.2 kg with 2000 ppm CCC application. With the CCC application, 32% increase in tuber yield per decare and 29% increase in marketable tuber yield was observed.