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प्रश्न
Give a reason for the following:
Bagging is essential in artificial hybridization.
उत्तर
So that no foreign pollen may fall on the stigma.
APPEARS IN
संबंधित प्रश्न
Give reason :
Emasculation is done in a flower which is selected as female parent.
(a) Name the tropical sugar cane variety grown in South India. How has it helped in improving the sugar cane quality grown in North India?
(b) Identify 'a', 'b' and 'c' in the following table:
| 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 |
In Brassica (rapeseed, mustard)........................ varietys is resistant to Aphids.
(a) Pusa A-4
(b) Pusa Gaurav
(c) Pusa Sawni
(d) . Pusa Shubra
Give the names of ‘two’ insect-resistant crop varieties.
Answer the following question.
How did plant breeding techniques help north Indian farmers to develop cane with desired characters?
While studying the history of the domestication of various cultivated plants _______ were recognized earlier.
Sugarcane which grow in North India, and which do not grow in north India.
Which one of the following is not a fungal disease?
In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.
What are A, B in the following table:
| Transgenic Crop | Substance | Transgene | |
| (i) | A | Flavonoids | Chalone isomerase |
| (ii) | Rice | B | Ferritin |
