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प्रश्न
Give the names of ‘two’ insect-resistant crop varieties.
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उत्तर
Pusa Gaurav, Pusa Sawni, and Pusa A-4 are insect-resistant crop varieties.
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संबंधित प्रश्न
Write a short note on ‘Mutational breeding’.
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.
List the two steps the classical plant breeding involves.
Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding.
Wheat -Atlas 66 has high contents of ______.
In hybridization experiments 'true breeding' means off-springs show ____________.
The biggest constraint of plant breeding is ______.
Define the term ‘stress’ for plants. Discuss briefly the two types of stress encountered by plants.
You are a Botanist working in the area of plant breeding. Describe the various steps that you will undertake to release a new variety.
