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Q: Economic importance of yam beetle
A: Yams are important in the lives of some of the people for yam festivals at harvest time and food. Teach this project if yams are an important crop locally. Teach with real plants or parts of plants. [ Students should do the actual work of growing the yams. Plant yams at the end of the dry season and before the tubers begin to make long sprouts, i.e. plant early varieties in August and late
varieties before the end of September. You could start the teaching in early June before planting time.Different kinds of yams See diagram 63.2: Winged Yam The yam family (Dioscoreaceae), monocotyledon, are twining plants. The stem is not strong so it needs to have something strong that it can twist around to climb up. There are many different kinds (species) of yams and each kind of yam has many varieties. 1. Dioscorea alata (D. rubella) "common yam", Greater yam, Water yam, Winged yam, White yam, Guyana arrowroot, Ten-months yam, Name-de-Agua It is the most common yam. It is a large climber with winged stems produce large single tuber. The stem is square and has four thin pieces of stem or "wings" at each corner. Climbs from left to right, i.e. the stem always twines to the right, as in the diagram. Each variety winged yam has only one tuber to each plant but the shape of these tubers varies in different varieties. ]
Marvel2|Points 511|
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Asked 6/14/2013 8:10:55 AM
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