Who proposed the criteria of essentiality of plant nutrients?
A. D. I. Arnor
B. E. A. Mikscherlich
C. Theophrastus
D. D. A. Russel
Answer: Option A
Solution(By Examveda Team)
D. I. Arnor proposed the criteria for the essentiality of plant nutrients.D. I. Arnor and Stout proposed the criteria for the essentiality of plant nutrients in 1939. The elements that are considered essential elements in deficiency of which the plant must be unable to complete its life cycle.
There are 17 elements classified as essential elements and these are carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, Sulphur, calcium, magnesium, boron, chlorine, copper, iron, manganese, molybdenum, nickel and zinc.
Related Questions on Plant Pathology
Which photosynthetic bacteria possess both PS I and PS II?
A. Purple sulphur bacteria
B. Cyanobacteria
C. Purple nonsulphur bacteria
D. Green sulphur bacteria
Join The Discussion