Deficiency symptoms of nitrogen and potassium are visible first in
(a) senescent leaves
(b) young leaves
(c) roots
(d) buds.
(a) senescent leaves
(b) young leaves
(c) roots
(d) buds.
1 Answer
Ans : (a) senescent leaves
Explanation:
Deficiency symptoms appear first in young leaves and young tissues in case of elements which are relatively immobile inside the plant e.g., Ca, S. For mobile elements like N and K, deficiency symptoms first appear in old and senescent leaves ns the elements are mobilised from senescing regions for supply to young tissues.