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Freshly dug sweet potato plants with tubers Hemerocallis tuber roots. A root tuber, tuberous root or storage root is a modified lateral root, enlarged to function as a storage organ. The enlarged area of the tuber can be produced at the end or middle of a root or involve the entire root.
Since the hypocotyl is a region between the stem and the roots, such tubers are variable in their anatomy and growth habits. Thus the roots of Cyclamen graecum grow from the base of the tuber, suggesting it is a stem tuber, whereas those of Cyclamen hederifolium mostly grow from the upper surface of the tuber, suggesting it is a root tuber. [10]
The roots are an extensive and complex system of fine, fibrous roots and scaly rhizomes with small, hard, spherical tubers and basal bulbs attached. The tubers are 0.3–2.5 cm ( 1 ⁄ 8 –1 in) in diameter and the colors vary between yellow, brown, and black.
This is the most common variety grown in Japan. Its grass is relatively short, and its leaves are medium-sized and green. Its tuber is oblong, and its outer skin is blue. Among the ao kuwai strains, the one with a flat bottom of the tuber is called Shinden kuwai, and the slightly waist-high, round-bellied strain is called Kyo kuwai. [8]
Tubers develop from either the stem or the root. Stem tubers grow from rhizomes or runners that swell from storing nutrients while root tubers propagate from roots that are modified to store nutrients and get too large and produce a new plant. [22] Examples of stem tubers are potatoes and yams and examples of root tubers are sweet potatoes and ...
Replacement of a tap root system by a fibrous root is seen in onions, tuberose (Polyanthes tuberosa), grasses, etc. Fibrous roots from normal-stem nodes are seen in grasses like maize, sugarcane, bamboo, etc. Fibrous roots from nodes help in the survival of the plant and thus in vegetative reproduction, when the plant's base is damaged or cut ...
Conical root: this type of root tuber is conical in shape, i.e. widest at the top and tapering steadily towards the bottom: e.g. carrot. Fusiform root: this root is widest in the middle and tapers towards the top and the bottom: e.g. radish. Napiform root: the root has a top-like appearance.
In Burma, arrowroot tubers, which are called artarlut, are boiled or steamed and eaten with salt and oil. Arrowroot makes clear, shimmering fruit gels and prevents ice crystals from forming in homemade ice cream. It can also be used as a thickener for acidic foods, such as East Asian sweet and sour sauce. It is used in cooking to produce a ...