Özet:

The aim of the study was to determine effective storage methods and practices for vegetative propagation of giant king grass (Pennisetum hybridum). Two individual experiments were conducted in the study. Giant king grass stems with at least 10 internodes were stored in 2 sets at 20 cm and 40 cm soil depth in December. The first and second set were opened 100 days and 140 days after the burial of the stems, respectively. After both storages, 10-node stem sections were cut to cuttings with 1 or 2 nodes by hacksaw, and the new cuttings were transplanted into the soil with indole-3-butyric acid (IBA) (4000 ppm) or without IBA (0 ppm, control). Some traits such as sprouting rate and root dry weight were tested in the trials. The results indicated that no sprouting success was achieved in any of the cuttings prepared from the stems stored at 20 cm soil depth in the first experiment. Application of 4000 ppm IBA to the cuttings prepared from the stems stored at 40 cm soil depth increased the sprouting rate compared to the control. Cuttings with 2-node had higher sprouting than cuttings with 1-node. In the second experiment, sprouting rates were higher in cuttings prepared from stems stored at 40 cm soil depth compared to 20 cm soil depth. Non-significant differences between IBA concentrations were observed on sprouting rate in both soil depths. Cuttings with 1-node had higher sprouting rate than cuttings with 2-node. In both experiments, single node cuttings tended to produce more roots than cutting with 2-nodes.

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