Study on High Efficiency and Rapid Propagation System of Sweet Potato Virus-free Test Tube Plantlets

Sweetpotato virus-free test tube plantlets with different characteristic of tendril-length were cut into segments,and then the segments were inoculated in different MS mediums adding IAA,NAA,GA3,NAA/KT or NAA/6-BA respectively to study the rapid-propagation technology.The results as follows: MS medium was the optimal basic medium for rapid-propagation.MS+0.01~0.05 mg·L-1 NAA+1.0 mg·L-1 6-BA was better than others for rapid-propagation of different tendril-length varieties.MS+0.01~0.05 mg·L-1 NAA+1.0 mg·L-1 6-BA could promote rapid-propagation of middle tendril and short tendril varieties furthest.