Abstract
The change in the viscoelasticity of the Chinese yam during growth was investigated from mid- August to late November, 1988 in the Tokachi district of Japan. The Chinese yam had peak viscoelasticity around October 24. Its viscosity was correlated with the insoluble solid content, whereas its rigidity was associated with the mucilage content. Viscosity and rigidity values of Chinese yam during maturation reached maximum when the soil temperature at 40cm decreased to around 11°C.
