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.
Last updated
Practise Plant Protection
321 free Plant Protection MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
2,4-d is synthetic herbicide derived from_______________?
A chemical or secretions which are thrown outside the body for transmitting message to the individual of same species is_________________?
A chemical which causes plant does it called __________________?
A dose of a toxicant that kills 50% of the exposed organism is called_________________?
A few species of ants and termites which depend on cultivated plants are___________________?