MCQOPTIONS
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| 1. |
R1 to R6 genes against late blight of potato was reported by_____________________________? |
| A. | Biffen (1905) |
| B. | Flor (1956) |
| C. | Van der plank (1963) |
| D. | Painter (1951) |
| Answer» B. Flor (1956) | |