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प्रश्न
Discuss the importance of testing of new plant varieties in a geographically vast country like India.
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उत्तर
The newly selected lines are evaluated for their yield and other agronomic traits of quality, disease resistance, etc. This evaluation is done by growing these in the research fields and recording their performance under ideal fertilizer application, irrigation, and other crop management practices. The evaluation in research fields is followed by testing the materials in fanners’ fields, for at least three growing seasons at several locations in the country, representing all the agroclimatic zones where the crop is usually grown. The material is evaluated in comparison to the best available local crop cultivar-a check or reference cultivar.
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संबंधित प्रश्न
Which steps would you follow to develop a new variety of crop plant by selective breeding?
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 |
What is plant breeding?
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 |
Name any two common Indian millet crops.
What is emasculation?
What are components of water potential? Explain
Definition and importance of Imbibition
Give a reason for the following:
Bagging is essential in artificial hybridisation.
Crosses between the plants of the same variety are called
Explain the best-suited type followed by plant breeders at present?
The plant which is used for Studying hybrid vigour or heterocyst:
Sugarcane which grow in North India, and which do not grow in north India.
Mutations in plant cells can be induced by ______
Sonalika and Kalyan Sona are varieties of ______.
33 percent of India’s Gross Domestic Product comes from ______.
Suggest some of the features of plants that will prevent insect and pest infestation
Discuss briefly the technology that made us self-sufficient in food production.
Write two varieties of sugarcane having high sugar content.
