Question

Yellowish edges appear in leaves deficient in

• A. $Ca^{2+}$
• B. $Mg^{2+}$
• C. $K^{+}$
• D. Sulphur

Answer 1

Answer: (C)

$K^{+}$

Answer 2

Deficiency of potassium results in marginal and intervenal mottled chlorosis and necrosis. It is required for synthesis of protein, cell membrane osmotic potential, turgidity of cell etc.