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Online Auction Description
Malaysia 2009 S#1252-1255 Tuber Plants complete set. Mint Never Hinged (MNH). Post Office fresh in excellent condition! Stamps are unwatermarked but have security feature that can be detected under ultra-violet light.
Topic name: plants, food
This complete set features sweet potato (Ipomoea batatas), Cassava (Manihot esculenta), Sengkuang (Pachyrrhizus erosus), and yam. The term tuber plants or root crops is applied to plants which produce subterranean structures that are used as human or animal foods. These perennial plants have organs which store plant nutrients. In many cases the storage organs may be a root or a modified stem, for example a swollen rhizome or corm, or a tuber such as a potato or a swollen root as in carrot or sweet potato. All these swollen underground organs are commonly spoken of as tubers. Root crops are the second most important source of carbohydrates in the worlds food, the most important being cereals. However, in the tropical world, root crops are proportionally much more important. In fact, in many tropical countries where rice is not grown, they are the staple diet. In general the protein content is low, but some, like potato and yam provide significant amounts of certain vitamins.
Sweet Potato (Ipomoea batatas) is a dicotyledonous plant which belongs to the family Convolvulaceae. Amongst the approximately 50 genera and more than 1,000 species of this family, on Ipomoea batatas is a crop plant whose large, starchy, sweet tasting tuberous roots are an important root vegetable. The young leaves and shoots are sometimes eaten as greens. The edible tuberous root is long and tapered, with a smooth skin whose colour ranges between red, purple, brown, yellow, orange and white. Its flesh ranges from white to yellow, orange and purple.
Cassava (Manihot esculenta) is a woody shrub of the Euphorbiaceaae that is extensively cultivated as an annual crop in tropical and subtropical regions for its edible starchy tuberous root. Tapioca is the third largest source of carbohydrates and contains significant amounts of potassium, calcium, phosphorus and vitamin C. The skin is light brown to dark reddish brown in colour and has a smooth or rough texture. The colour of the flesh ranges from chalk white to yellowish. However, they are poor in protein and other nutrients. In contrast tapioca leaves are a good source of protein but should be supplemented with the amino acid methionine to counter the high cyanide content.
Sengkuang (Pachyrrhizus erosus) is one species in the genus Pachyrrhizus that is commonly called yam bean. The roots exterioris yellowishbrown while its inside is creamy white with a crisp textile that resembles water chestnut or pear. In contrast to the roots, the remainder of the sengkuang plant is very poisonous; the seeds contain the toxin rotenone, which is used to kill insects and stun fish. It is high in carbohydrates and dietary fiber. It is composed of 86-90% water, containing only trace amounts of protein and lipids.
Yam (Dioscorea alata L.) is a genus of over 600 species of flower plants in the family Dioscoreaceae, native throughout the tropical and warm temperate regions of the world. Known as yams, they are important agricultural crops in the tropical regions, grown for their large tubers. They are tuberous herbaceous perennial climbers, ranging from 2 to 12 metres in height. Many of these are toxic when fresh but they can be detoxified and consumed and are particularly important in parts of Aftrica, Asia and Oceania.
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Full sheets (Up to 160 grams, 9" x 12.75" envelope)
2. Life Member of Philatelic Society of Malaysia (PSM).
3. Items listed are from personal collection. They are without fault unless noted in the lot description. Although we do not practice Six Sigma, we do have quality control. Stamps will be checked again before shipment.
4. The picture posted is stock photo and it is for illustration only unless stated otherwise, so serial number, perforation etc. may differ.
5. If you're not satisfied with the product you purchased because of inaccurate description, please contact me within 3 days for an exchange or refund if there is no stock. The shipping & handling costs are not returnable.
6. If you collect covers or used stamps and want to buy mint stamps and use them on covers, it can be done. The face value of the stamps will be deducted from shipping and handling costs.