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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
What is ‘biofortification’?
Answer the following question.
How did plant breeding techniques help north Indian farmers to develop cane with desired characters?
Describe briefly various steps of plant breeding methods.
Explain the best-suited type followed by plant breeders at present?
The biggest constraint of plant breeding is ______.
Sugarcane which grow in North India, and which do not grow in north India.
Which of the following is not an objective of Biofortification in crops?
Discuss the two main limitations of plant hybridization programme.
Give few examples of biofortified crops. What benefits do they offer to the society?
Discuss briefly the technology that made us self-sufficient in food production.
