Root plant to fuel the process. In return, the plant takes nitrogen compounds produced from ammonia by the bacteria. The term root crops refers to any edible underground plant structure, but many root crops are actually stems, such as potato tubers. Edible roots include cassava, sweet potato, beet, carrot, rutabaga, turnip, parsnip, radish, yam and horseradish. Spices obtained from roots include sassafras, angelica, sarsaparilla and licorice. Sugar beet is an important source of sugar. Yam roots are a source of estrogen compounds used in birth control pills. The fish poison and insecticide rotenone is obtained from roots of "Lonchocarpus" spp. Important
Tea tasting moving onto the next sample to taste. The flavour characteristics and indeed leaf colour, size and shape are graded using a specific language created by the tea industry to explain the overall quality. Generally speaking, once the quality has been tasted/graded, each tea company places a value on it based on market trends, availability and demand. Tea tasting Tea tasting is the process in which a trained taster determines the quality of a particular tea. Due to climatic conditions, topography, manufacturing process, and different clones of the "Camellia sinensis" plant (tea), the final product may have vastly differing flavours and