Identify A and B in the diagram. (a) A: A fully mature...

Identify $\mathrm{A}$ and $\mathrm{B}$ in the diagram.
(a) A: A fully mature cotton boll, B: Destroyed by bollworms
(b) A: Destroyed by bollworms, B: Fully mature cotton boll
(c) A: Destroyed by virus, B: Immature cotton boll
(d) A: Immature normal cotton boll, B: Destroyed by virus

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Key Concepts

Cotton Boll Development

This concept covers the natural progression of cotton bolls from immature to fully mature stages. Understanding the anatomical and developmental features of the cotton boll is essential for diagnosing normal growth versus any abnormalities caused by external factors. It aids in distinguishing between features that indicate maturity and those that suggest incomplete development or damage.

Insect Pest Damage

This concept focuses on the impact of insect pests, such as bollworms, on cotton plants. Bollworms can severely damage cotton bolls by feeding on them, which disrupts normal development and can lead to a decrease in yield. Recognizing the signs of pest damage is important in agricultural practices for timely intervention and pest management.

Viral Pathogenesis in Plants

This concept involves the mechanisms by which viruses infect plants and cause disease symptoms. Viral infections in cotton can lead to symptoms such as discoloration, deformation, and delayed maturation of cotton bolls. Understanding viral pathogenesis helps differentiate between issues caused by pathogens and those resulting from mechanical or pest-induced damage.

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