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प्रश्न
Answer each question in ‘One’ sentence only:
Define stock and scion.
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उत्तर
The cut stem of a plant having roots (and fixed in soil) is called stock and the cut stem of another plant (without roots) is called scion.
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संबंधित प्रश्न
What is ‘biofortification’?
What is plant breeding?
Briefly describe various steps involved in plant breeding.
Which one of the following crop varieties correct matches with its resistance to disease?
| Variety | Resistance to disease |
| a) Pusa Komal | Bacterial blight |
| b) Pusa Sadabahar | White rust |
| c) Pusa Shubhra | Chilli mosaic virus |
| d) Brassica | Pusa swarnim |
The biggest constraint of plant breeding is:
Sonalika and Kalyan Sona are varieties of ______.
Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed ______.
33 percent of India’s Gross Domestic Product comes from ______.
Mutations are beneficial for plant breeding. Taking an example, justify the statement.
Give a reason for the following:
The continuous inbreeding of crops may lead to reduced fertility and productivity. However, the self-pollinated crops do not show the ill-effects of inbreeding.
