Evaluation of rhododendron ornamental value through fuzzy similarity priority ratio and grey system

Ornamental value of 20 Rhododendron species were investigated A total of 13 ornamental characteristics were evaluated using Fuzzy Similarity Priority Ratio and Grey system method in the "One Hundred Li Rhododendron" Forest Area in Guizhou, China. This result indicated that ten species with higher ornamental value should be widely cultivated in this Forest Area.