Question

Why is it that in certain plants deficiency symptoms appear first in younger parts of the plant while in other they do so in mature organs?

Answer 1

element should fulfill certain criteria to be categorized as essential element. Otherwise, it cannot be considered as essential elements. Out of the numerous elements present in plants, only 17 are considered as essential elements.

Answer 2

Answer:

Mobility of a deficient element decides the appearance of symptoms. If the element is relatively immobile then symptoms appear in young parts and if the deficient element is mobile, then symptoms appear in older parts of the plant.