The term vertical resistance and horizontal resistance were first used by________________________?
Correct answer: A. Van der plank (1963)
- A. Van der plank (1963)
- B. Karpechenko (1927)
- C. Hull (1945)
- D. Correns (1900)
Explanation
J. E. van der Plank introduced the terms vertical resistance and horizontal resistance in his work on plant disease resistance, published in 1963. The other scientists listed are associated with genetics or plant breeding, not these resistance categories.
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