Concept:Tropical plantation crops often need shade trees during the seedling stage, but cereal crops like rice do not.Explanation:Cocoa (Theobroma cacao) seedlings are raised under shade trees.Coffee (Coffea spp) seedlings also require shade trees in nurseries.Oil palm (Elaeis guineensis) seedlings need shade during their early growth.Rice (Oryza sativa) is grown as a field crop in open paddy fields, so it does not require shade trees.Answer:D. Oryza sativa