MPSC PYQScienceवनस्पतीशास्त्रenglish
Consider the following statements about Arnon's and Stout (1939) criteria for essential nutrients. (a) Deficiency of essential nutrient elements makes it impossible for plant to complete the vegetative or reproductive stage. (b) Deficiency can be corrected only by supplying that particular element. (c) Deficiency can be corrected by supplying other similar element. (d) Must have direct influence on plant nutrition and metabolism.
A.Only (a), (b) and (d) are correct, (c) is incorrect
B.Only (a), (b) and (c) are correct, (d) is incorrect
C.Only (a), (c) and (d) are correct, (b) is incorrect
D.All of the above is correct
Correct answer: A