Advertisements
Advertisements
प्रश्न
Discuss briefly the technology that made us self-sufficient in food production.
Advertisements
उत्तर
Plant breeding is the purposeful manipulation of plant species in order to create desired plant types that are better suited for cultivation, give better yields and are disease resistant. With advancements in genetics, molecular biology and tissue culture, plant breeding is now increasingly being carried out by using molecular genetic tools.
APPEARS IN
संबंधित प्रश्न
Suggest four important steps to produce a disease resistant plant through conventional plant breeding technology.
Name the following:
The semi-dwarf variety of wheat is high-yielding and disease-resistant.
Identify 'A', 'B', 'C' and 'D' in the given table.
| Crop | Variety | Resistance to disease |
| A | Himgiri | Leaf rust |
| Cauliflower | Pusa Shubhra | B |
| Brassica | Pusa Swarnim | C |
| Cowpea | D | Bacterial blight |
List the two steps the classical plant breeding involves.
Define the term water potential.
Explain the effect of light and temperature on photosynthesis.
What is Biofortification? Explain selective breeding with suitable example.
Answer the following question.
How did plant breeding techniques help north Indian farmers to develop cane with desired characters?
Give an account of mutation breeding with examples.
In hybridization experiments 'true breeding' means off-springs show ____________.
Mechanism of fast Speciation in crop plants is ______.
Match the columns-
| Column A | Column B | ||
| A. | Kalyan Sona | 1. | Rice |
| B. | Pusa sawani | 2. | Wheat |
| C. | IR - 8 | 3. | Okra |
Sonalika and Kalyan Sona are varieties of ______.
The scientific process by which crop plants are enriched with certain desirable nutrients is called ______.
Give two important contributions of Dr. M. S. Swaminathan.
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.
What is meant by germplasm collection?
Discuss the importance of testing of new plant varieties in a geographically vast country like India.
Name two better yielding varieties of rice developed in India.
Bioforified crops are ______.
