Mineral Nutrition Question 26
26. Deficiency symptoms of nitrogen and potassium are visible first in:
[2014]
(a) Senescent leaves
(b) Young leaves
(c) Roots
(d) Buds
Show Answer
Answer : a
Hints & Solution
(a) 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 mobilised 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.
