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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
Name the following:
The semi-dwarf variety of wheat is high-yielding and disease-resistant.
Explain the effect of light and temperature on photosynthesis.
Give the scientific term used for the preservation of germplasm at a very low temperature.
Give a reason for the following:
Bagging is essential in artificial hybridisation.
Plants having similar genotypes produced by plant breeding are called
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 science of changing and improving the heredity of plants is called ______
Breeding of crops with high levels of minerals:
Suggest some of the features of plants that will prevent insect and pest infestation
Discuss the importance of testing of new plant varieties in a geographically vast country like India.
