The criteria of essentiality of nutrients in plants was given by

A. D. J. Nicholas

B. Arnon and Stout

C. J. S. Kanwar

D. M. S. Swaminathan

Answer: Option B

Solution(By Examveda Team)

Essential nutrients are those that any organism is unable to produce within itself and need from outer environmental sources for its proper functioning of biochemical pathways. But there are some basic criteria to make any element essential for any plant type and these criteria were proposed by Arnon and Stout in 1939. And according to them, there are 16 elements essential for the proper growth and development of the plant.