Why do they tie the yam on a log and garnish it with leaves?

Tying yams to a log and garnishing them with leaves is a traditional practice in some cultures to protect the yams from pests and damage during storage. The leaves can help create a microenvironment that reduces moisture loss and prevents rot. Additionally, this method can enhance the aesthetic appeal of the yams, making them more visually appealing for presentation or sale. Overall, it serves both functional and decorative purposes.