The concept of multi line varieties was developed by_________________?
Correct answer: B. Jensen (1952)
- A. Falconer (1960)
- B. Jensen (1952)
- C. Goulden (1939)
- D. Johannsen (1903)
Explanation
Jensen developed the multiline variety concept in 1952 by combining several near-isogenic lines carrying different resistance genes. This diversity helps slow the spread of disease races through a crop.
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