Question

Which is world first semi dwarf, photoperiod insensitive and high yielding rice variety?

• A. Pusa RH-10
• B. Pusa Basmati-1637
• C. Pusa Basmati-1
• D. Pusa Basmati-1121

Hint:

Look for varieties that represent significant breakthroughs. "Semi-dwarf," "photoperiod insensitive," and "high yielding" are key traits of modern rice varieties, including many hybrids. Pusa RH-10 is known as a pioneering aromatic hybrid with these characteristics.

Answer 1

The Correct Option is A

Step 1: Pusa Basmati-1, 1121 and 1637 are aromatic quality varieties, not associated with being a "world first" for plant architecture.
Step 2: Pusa RH-10 is documented as the world's first superfine aromatic rice hybrid.
Step 3: As a hybrid, it combines semi-dwarf stature, photoperiod insensitivity and high yield, matching the question's description.
Step 4: The correct answer is Pusa RH-10.