[Korean Farmers' News Reporter Jo Young-kyu] 'Aram' and 'Seoldan'. 'Aram' is a brown oyster mushroom, 'Seoldan' is a white oyster mushroom. These are all domestic varieties developed by the National Institute of Horticultural and Herbal Science. In South Korea's oyster mushroom market, which is dominated by Japanese varieties, 'Aram' and 'Seoldan' are gathering expectations as new varieties that will lead the domestic oyster mushroom market in the future. These two varieties have one thing in common. They both received assistance from agricultural food consumption information implemented by the Rural Development Administration. 'Aram' utilized consumption information in the process of understanding consumer response to 'brown' oyster mushrooms. 'Seoldan' itself started from consumer information. Consumers