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प्रश्न
While studying the history of the domestication of various cultivated plants _______ were recognized earlier.
विकल्प
Centres of origin
Centres of domestication
Centres of hybrid
Centres of variation
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उत्तर
While studying the history of the domestication of various cultivated plants Centres of origin were recognized earlier.
संबंधित प्रश्न
Give reason :
Emasculation is done in a flower which is selected as female parent.
Suggest four important steps to produce a disease resistant plant through conventional plant breeding technology.
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 mutation breeding helped in improving the production of mung bean crop?
Give the names of ‘two’ insect-resistant crop varieties.
State one characteristic of millets that has been improved as a result of hybrid breeding so as to produce high yielding millet crops.
List the two steps the classical plant breeding involves.
Answer each question in ‘One’ sentence only:
Define stock and scion.
Give the scientific term used for the preservation of germplasm at a very low temperature.
Explain the best-suited type followed by plant breeders at present?
Sonora – 64 is a variety of ______.
Mechanism of fast Speciation in crop plants is ______.
Which of the following is not an objective of Biofortification in crops?
Which one of the following is not a fungal disease?
Discuss the two main limitations of plant hybridization programme.
It is said, that diseases are spreading faster due to globalisation and increased movement of people. Justify the statement taking the example of H5N1 virus.
Discuss the importance of testing of new plant varieties in a geographically vast country like India.
Write two varieties of sugarcane having high sugar content.
Name two better yielding varieties of rice developed in India.
