Some plants exhibit resistance to insect and pests due to their morphological or physiological characteristics. Choose the correct option showing the correct cause of pest resistance in plants.

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Solid stems of wheat prevent leaf beetle

Smooth leaved cotton is not preferred by stem saw fly

Maize with high aspartic acid content is resistant to stem borers

Nectar less cotton are resistant to jassids

answer is C.

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Detailed Solution

Host crop plants that exhibit insect resistance may do so for morphological, biochemical, or physiological reasons.
In many plants, such as cotton and wheat, hairy leaves are linked to resistance against insect pests including jassids and cereal leaf beetles. The stem sawfly does not choose solid stems in wheat, and bollworms are not drawn to cotton cultivars with smooth leaves and no nectar. A combination of low nitrogen, high aspartic acid, and high sugar content makes maize resistant to maize stem borers.

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