꾸지뽕나무의 揷木時期, 床土 및 發根劑가 揷木繁殖에 미치는 影響

This study was carried out to develop mass propagation techniques by cutting seedling of Cudrania tricuspidata which is a promising species as a medicinal herbs and a health food trees. Rooting and, mortality rates (percentage of dead cutting) and the number of roots were measured by cutting times, using various growth media and the digesting times of growth hormone. 1. Rooting rates by cutting times were higher in March cutting (64.5%) than in July cutting (55.3%). The highest rooting rates were observed in March cutting (68.5%) with the growth media of peatmoss + perlite. The rooting rates by the digesting times of growth hormone were the highest (87.5%) in 30 hours at IBA 100ppm among the treatments. 2. Callus formation from cutting roots was not related to cutting times and digesting time of growth hormone, but related to growth media. 3. Mortality rates was related to cutting time and digesting time at IBA 100ppm. 4. Number of roots were about 16 and not related to cutting times, growth media and the digesting time of growth hormone. In conclusion, the best techniques for cutting propagations of Cudrania tricuspidata were observed in March cutting (rooting rates : 87.5%) in the growth media of peatmoss + perlite with 30 hours digesting times at IBA 100ppm.