He then grew many successive generations to ensure the plant would "come true" always have yellow branches and not revert to green, as some yellow plants do.
Often the only cooling source in a manufacturing plant or warehouse was a ceiling fan, with a yellow ribbon tied to the blade so that people could see that it was really going around.
Mr. Smits, who specializes in evergreens, noticed a yellow branch on an otherwise green arborvitae in his nursery, according to the plant patent application he filed.
The bright yellow dome of the steel containment vessel at Unit 4, Fukushima Daiishi nuclear power plant (FDI) is clearly visible amid the pulverized remains of the building in a new video released by the Tokyo Electric Power Company.