Question

Match the following in the context of the plant nutrients

	Deficiency of		Results in
A.	Calcium	1.	Interveinal chlorosis followed by the formation of anthocyanin pigments and in severe cases leads to necrosis
B.	Iron	2.	Stunted growth and development of purple anthocyanin pigments
C.	Phosphorus	3.	Interveinal chlorosis
D.	Magnesium	4.	Chlorosis of the margins of the young leaves leading to their necrosis

• A. A - 3, B - 2, C - 1, D - 4
• B. A - 1, B - 3, C - 2, D - 1
• C. A - 4, B - 3, C - 2, D - 1
• D. A - 2, B - 1, C - 4, D - 3

Answer 1

Answer: (C)

A - 4, B - 3, C - 2, D - 1

• The primary symptom of iron deficiency is interveinal chlorosis, the development of a yellow leaf with a network of dark green veins.
  
• Plants deficient in phosphorus are stunted in growth and often have an abnormal dark-green color. Sugars can accumulate and cause anthocyanin pigments to develop, producing a reddish-purple color. This can sometimes be seen in early spring on low phosphorus sites.
• A magnesium-deficient crop will tend to have a pale overall color. The earliest specific symptom of magnesium deficiency is interveinal chlorosis of older leaves. Chlorosis generally progresses to yellowing and necrosis of the oldest leaves.

So, the correct answer is 'A - 4, B - 3, C - 2, D - 1'.