Step 1: Understanding the Concept:
The question asks to identify the flower crop to which the variety 'Prajwal' belongs, given its use for loose flowers and perfumery.
Step 2: Detailed Explanation:
'Prajwal' is a well-known and commercially important variety of Tuberose (*Polianthes tuberosa*). It is a double-flowered hybrid developed at the Indian Institute of Horticultural Research (IIHR), Bengaluru. It is highly valued for its long spikes, high yield of flowers, and strong fragrance, making it ideal for both the cut flower market (as spikes) and loose flower market, as well as for the extraction of its essential oil for the perfumery industry.
Step 3: Final Answer:
Prajwal is a variety of Tuberose.