Biology - Strategies for Enhancement in Food Production Question with Solution | TestHub
Identify the correct statements about plant breeding for developing resistance to insect pests.
(A). Hairy leaves in cotton - resistance to jassids.
(B). Hairy leaves in wheat - resistance to stem borers.
(C). Nectar-less cotton having smooth leaves - resistance against boll worms.
(D). High aspartic acid and low nitrogen and sugar content in maize - resistance to stem borers.
Choose thecorrectanswer from the options given below:
Options:
Answer:
Solution:
Statement (A) is correct because hairy leaves in several plants are associated with resistance to insect pests, such as resistance to jassids in cotton.
Statement (B) is incorrect because hairy leaves in wheat provide resistance to the cereal leaf beetle, not stem borers. Solid stems in wheat lead to non-preference by the stem sawfly.
Statement (C) is correct because smooth-leaved and nectar-less cotton varieties do not attract bollworms.
Statement (D) is correct because high aspartic acid, low nitrogen, and low sugar content in maize lead to resistance against maize stem borers.
Therefore, statements (A), (C), and (D) are correct.
Answer: (A), (C) and (D) only.
