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Plant Breeding In Rice Essay

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Plant Breeding in Rice
Rice is the one of the most important crop as a food source of more than half of the world's population. It has really large percentage in total cereal grain production. Rice is the most commonly used grain product after the wheat in human nutrition. For most of the countries in the world rice is primary staple food, especially in Asia and India. It contains fiber, vitamins, mineral and little bit protein, for nutrition and even the starch ratio in rice is higher than in wheat. Rice is the only grain species that can germinate in water soaked lands, in full of water because its anatomy provide this oxygen utilization that dissolved in water can utilize dissolved oxygen in the water rice, which has an important place in the cultivation of many countries including Turkey in terms of being able to grow in salty and alkaline land. This plant is also effective improving economic efficiency of these lands. However, most of the world's paddy production is done in tropical and temperate regions that provide the conditions for growth. A great deal of paddy planting sites in the world are located in Asia. The time of sowing rice in our country varies according to regions. In the …show more content…

Wild species of rice occur across South and East Asia, including India and South China. Rice was domesticated in the fifth millennium BC. The cultivated species of rice Oryza sativa is believed to have derived from annual antecedents found in the area extending from India to China. Based on the genetic evidences it is founded out that rice firstly domesticated near to Pearl River valley region of China. Then planting rice is spread to South and Southeast Asia from East Asia. Some of the ancient sites also found along Yangtze River. Twenty species of the genus Oryza are known, with a basic chromosome number of 12. The genus has six genome groups – A, B, C, D, E, and F. The cultivated species O. sativa (2n=2x=24) has the genome formula

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