question_answer 39)

How are the terms 'critical concentration' and 'deficient' different from each other in terms of concentration of an essential element in plants? Can you find the values of 'critical concentration' and 'deficient' for minerals?Fe and Zn?                 Carnivorous plants exhibit nutritional adaptation. Citing an example explain this fact.  

Answer:

                 

Critical Concentration	Deficient
A concentration of a nutrient measured in tissue, just below the level that gives maximum growth is defined as, critical concentration. e.g., N, P and K are known as critical elements.	The concentration that is below the critical concentration and the deficiency of nutrient element can lead to a gradual fall in the plant growth is called deficient.

               

	Critical concentration	Deficient
Zn	0.5-1%	Less than 0.5%
Fe	3.5-5%	Less than 3.5%