R1 to R6 genes against late blight of potato was reported by_____________________________?
Correct answer: A. Biffen (1905)
- A. Biffen (1905)
- B. Flor (1956)
- C. Van der plank (1963)
- D. Painter (1951)
Explanation
Biffen reported the early genetic resistance of potato to late blight in 1905, associated with the R-gene concept later developed through studies of multiple resistance genes. Flor is linked mainly with the gene-for-gene concept in flax rust, not this potato report.
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