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  Economic importance

Economic importance:

Several plants are economically significant and helpful to mankind in various ways. Relies on their use, they are generally classified as:

1. Food plants,
2. Fibre plants,
3. Oil plants and
4. Timber plants.

Food plant – Rice:

The binomial of it is Oryza sativa. It relates to Poaceae. It is the most significant cereal of tropical climate. This plant is an annual grass. The inflorescence is panicle consisting of a number of branches, every terminating in a single grain. IR–8, ponni, kavery, kannagi, ganga, etc. are a number of the recent varieties.

Rice is the main source of carbohydrates. Polished rice is less nutritive as compared to the unpolished rice. Straw is employed as livestock feed. In Japan, alcoholic beverages are as well distilled from the grains of rice. Currently, from the husk of paddy, a cooking (rice bran oil) oil is taken out. Now, bio-diesel is acquired from rice bran oil.

Rice is the main food of half of the population of world. Specifically in the eastern hemisphere it is the staple food. Cultivation of rice is the only one source of income for majority of people in our country. The uses of rice are so much.

Economic importance

1. Parched rice or pori is crisp to eat. It is sold either unsalted or salted.

2. The flattened parboiled rice is termed as flaked rice. Such as corn flakes, it is a extremely good breakfast food. Flaked rice is as well employed for preparing dissimilar kinds of food items.

3. Sake is a significant alcoholic beverage in Japan. Sake is ready by the fermentation of rice.

4. Bran is a significant by-product of rice milling industry. It is employed like a cattle feed.

5. Bran oil is taken out either by expression in a hydraulic press or extraction along with solvents.  Bran oil is employed like edible oil and for preparation of vanaspathi, making soaps. It is as well employed in the textile industry, leather industry.

6. Bran wax is a by-product in bran-oil extraction. It is employed in chocolate industry and in the manufacture of lip-sticks.

7. Paddy husk is employed like a fuel, in brick kilns. It is as well used in brick making.

8. Straw is employed like cattle feed, in the manufacture of straw-boards and for making hats, ropes, mats, etc.

 

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