Correct option is B
✅ (b) Boron: • Boron deficiency weakens cell wall structure and disrupts membrane integrity. • It leads to uneven water distribution in fruit tissues, causing the skin to split or crack. • Commonly observed in tomato, apple, citrus, and pomegranate. • Boron is essential for sugar transport, cell wall formation, and fruit development.
❌ (a) Iron: • Iron deficiency causes chlorosis, not fruit cracking.
❌ (c) Potash: • Potassium deficiency affects size and color, not typically cracking.
❌ (d) Zinc: • Zinc deficiency results in short internodes and distorted leaves, not directly fruit cracking.