उत्पत्ति के आधार पर पादप रेशों का वर्गीकरण लिखिए।
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fibers are either mined (minerals such as asbestos) or are supplied from renewable 205 resources including wool (hair) from several animals, silk produced by insects, and lignocel- lulosic fibers separated from a variety of plants. Since this review is limited to renewable lig- nocellulosic fibers, the classification in Fig. 2 and Table 3 is limited to a few of the most common fibers from plants. Scanning electron micrographs of lignocellulosic fibers are shown in Fig. ...
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... are not dis- cussed in this review, although it should be recognized that both plant growth conditions and extraction processes affect mechanical and moisture retention properties of the 215 fibers. 31,[38][39][40] Plant fibers on the market are graded according to color, luster, cleanliness, strength, fineness, and uniformity. 41 According to Fig. 2 and Table 3, the fibers are classified per their location in the plant. Flax, hemp, jute, ramie, kenaf, isora, and banana fall under the category of bast fibers, which are extracted from the plant after harvesting by rotting the stems by submerging them in 220 ponds or streams. 42,43 Leaves of sisal, agave, abaca, curaua, piassava, and ...
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... of sisal, agave, abaca, curaua, piassava, and fique are also sour- ces of fibers. However, these are separated through crushing and scraping, followed by wash- ing. 44,45 Since the fibers in bast and leaves are integral to the plant structure, they provide strength and support. Fibers may also be extracted from plant seeds 46 and fruit 47 ( Fig. 2). Stalks of other plants including grass, bamboo, straws of wheat, rice, barley, bagasse, or even 225 tree wood may also be used as a source of fibers. Different plant fibers, along with their ori- gins and properties, are described in detail by Faruk et al. 15 and Thakur and Thakur. 48 ...
Answer:
उत्पत्ति के आधार पर पादप रेशों का वर्गीकरण लिखिए। सतह रेशे (Surface Fibres)-यह रेशे पौधे के बीज या फल की सतह पर अतिवृद्धि के रूप में उत्पन्न होते हैं; जैसे- कपास। मृद, स्तम्भ या बास्ट रेशे (Soft, stem or Bast Fibres)-इन रेशों को द्विबीजपत्री स्तम्भ के फ्लोएम रेशों व परिरम्भ से प्राप्त किया जाता है।