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प्रश्न
How the resistance in crops can be developed?
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उत्तर
- Development of morphological characters like hairy leaves in cotton and wheat develop vector resistance from jassids and cereal leaf beetle, respectively.
- Solid stem in wheat leads to resistance to stem borers.
- Biochemical characters provide resistance to insects and pests. For example, the high aspartic acid, and low nitrogen and sugar content in maize, lead to resistance against stem borers.
- The nectar-less cotton having smooth leaves develop resistance against bollworms.
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संबंधित प्रश्न
Name the following:
The semi-dwarf variety of wheat is high-yielding and disease-resistant.
Briefly describe various steps involved in plant breeding.
Vijaya, Padma, Kanti and Jayanti are high-yielding varieties of ______.
Name the scientists who Coined the term Diffusion Pressure Deficit
Give a reason for the following:
Bagging is essential in artificial hybridisation.
Breeding of crops with high levels of minerals:
In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.
Suggest some of the features of plants that will prevent insect and pest infestation
Mutations are beneficial for plant breeding. Taking an example, justify the statement.
Discuss briefly the technology that made us self-sufficient in food production.
