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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
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
With the help of suitable diagram define 'bagging' and 'tagging' of flower.
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Column - I contains names of host plant while Column - II contains names of viral dieases. Find the correct option.
| Column-I | Column-II | ||
| (I) | Banana | (p) | little leaf |
| (II) | Sugarcane | (q) | bunchy top |
| (III) | Papaya | (r) | leaf roll |
| (IV) | Brinjal | (s) | grassy shoot |
| (t) | leaf curl |
The thalamus contributes to the fruit formation in ______
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i. collection of variabilities
ii. hybridization
iii. evaluation and selection of parents
iv. testing, release and commercialization of new cultivars.
v. selection and testing of superior recombinants.
