Question:

Sequence the disorder with their respective fruits
A. Soft nose
B. Goose flesh
C. Stalk necrosis
D. Granulation
E. Black Heart
Choose the correct answer from the options given below:

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"Soft nose $\to$ Mango," "Granulation $\to$ Citrus," and "Black Heart $\to$ Pineapple" are highly tested physiological disorders. Knowing these three will help you solve any matching sequence.
  • Banana-Citrus-Grape-Pineapple-Mango
  • Mango-Pineapple-Grape-Citrus-Banana
  • Pineapple-Citrus-Banana-Grape-Mango
  • Mango-Banana-Grape-Citrus-Pineapple
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept:
Physiological disorders are abnormalities in plant/fruit growth and development caused by non-pathological factors (such as nutrient deficiencies, extreme temperatures, or water stress).

Step 2: Detailed Explanation:

Let us match each physiological disorder with its respective fruit:
A. Soft nose: This is a physiological disorder of Mango (associated with calcium deficiency and high nitrogen levels), where the lower tip of the fruit softens and spoils before ripening.
B. Goose flesh: This is a chilling injury symptom observed in Banana skin when stored at temperatures below $12^\circ\text{C}$.
C. Stalk necrosis: Also known as rachis necrosis, this is a physiological disorder of Grape where the stem/pedicel of the bunch turns brown and dies, leading to berry drop.
D. Granulation: This is a common and serious physiological disorder in Citrus (especially sweet orange and mandarin) where the juice vesicles become dry, hard, and lose juice.
E. Black Heart: This is a physiological disorder of Pineapple (also called endogenous brown spot) triggered by low temperatures during storage or transit.
Putting the fruits in order (A $\to$ B $\to$ C $\to$ D $\to$ E):
Mango $\to$ Banana $\to$ Grape $\to$ Citrus $\to$ Pineapple.

Step 3: Final Answer:

The sequential order matches option (D).
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