Ricyness, fuzziness, hollow stem, leafyness, and pinking are physiological disorders of:

✅Explanation:
-The listed physiological disorders – riciness, fuzziness, hollow stem, leafyness, and pinking – are all specifically associated with cauliflower.
-These disorders can be caused by various factors like nutrient imbalances, environmental stress, or improper growing conditions.

🛑Other Options Explanations:
-Option (a) Knol-Khol: Knol-khol can experience disorders like bolting (premature flowering) or clubroot.
-Option (b) Brinjal (Eggplant): Brinjal can suffer from issues such as blossom-end rot, fruit cracking, or physiological leaf roll.
-Option (d) Broccoli: Broccoli can be affected by hollow stem and some other conditions, but the combination of disorders in the question is more characteristic of cauliflower.