Multiple choice

Hybrid vigour in artificial tobacco hybrids was first reported by

  1. G.H. Shull

  2. J. Koelreuter

  3. C.B. Davenport

  4. A. Collins
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Joseph Koelreuter reported hybrid vigor (heterosis) in his tobacco hybridization experiments in the 1760s, making him one of the first to document the phenomenon. While Shull later developed hybrid corn breeding, Koelreuter's work in tobacco came much earlier.

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