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प्रश्न
Write a short note on ‘Mutational breeding’.
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उत्तर
The breeding technique in which mutations are induced using mutagens and mutant organisms with the desired characters is known as mutational breeding. In plant breeding, this technique is employed to obtain resistant varieties of plants, e.g. moong beans to yellow mosaic virus and powdery mildew.
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संबंधित प्रश्न
Which steps would you follow to develop a new variety of crop plant by selective breeding?
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
List the two steps the classical plant breeding involves.
Mechanism of fast Speciation in crop plants is ______.
The plant which is used for Studying hybrid vigour or heterocyst:
Which one of the following pathogens causes cancer disease?
The biggest constraint of plant breeding is ______.
Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed ______.
The term ‘desirable trait’ can mean different things for different plants. Justify the statement with suitable examples.
Discuss natural selection and artificial selection. What are the implications of the latter on the process of evolution?
