Deficiency symptoms of nitrogen and potassium are visible first in:

Options

(a) Senescent leaves
(b) Young leaves
(c) Roots
(d) Buds

Correct Answer:

Senescent leaves

Explanation:

The parts of the plants that show the deficiency symptoms also depend on the mobility of the element in the plant. For element that are actively mobilized within the plants and exported to young developing tissues, the deficiency symptoms tend to appear first in the older tissues. For example nitrogen, potassium and magnesium are visible first in the senescent leaves.