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प्रश्न
What is ‘biofortification’?
Explain what is meant by biofortification.
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उत्तर १
Biofortification is the method of breeding crops to produce varieties which have increased nutritional value.
उत्तर २
Biofortification is a process of breeding crops with higher levels of vitamins, minerals, proteins, and fat content. This method is employed to improve public health. Breeding of crops with improved nutritional quality is undertaken to improve the content of proteins, oil, vitamins, minerals, and micronutrients in crops. It is also undertaken to upgrade the quality of oil and proteins. An example of this is a wheat variety known as Atlas 66, which has high protein content in comparison to the existing wheat. In addition, there are several other improved varieties of crop plants, such as rice, carrots, spinach, etc., which have more nutritious value and more nutrients than the existing varieties.
Notes
Students can refer to the provided solutions based on their preferred marks.
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संबंधित प्रश्न
Identify ‘a’, ‘b’ and ‘c’ in the following table:
| S. No. | Crop | Variety | Insect Pests |
| 1. | Brassica | Pusa Gaurav | ‘a’ |
| 2. | Flat bean | Pusa Sem 2 Pusa sem 3 |
‘b’ |
| 3. | ‘c’ | Pusa Sawani Pusa A-4 |
Shoot and fruit borer |
How has the breeding programme helped in improving the public nutritional health? State two examples in support of your answer.
Name any two common Indian millet crops.
Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding.
In hybridization experiments 'true breeding' means off-springs show ____________.
Sugarcane which grow in North India, and which do not grow in north India.
Match the columns-
| Column A | Column B | ||
| A. | Kalyan Sona | 1. | Rice |
| B. | Pusa sawani | 2. | Wheat |
| C. | IR - 8 | 3. | Okra |
Discuss the two main limitations of plant hybridization programme.
Give two important contributions of Dr. M. S. Swaminathan.
Give a reason for the following:
The continuous inbreeding of crops may lead to reduced fertility and productivity. However, the self-pollinated crops do not show the ill-effects of inbreeding.
