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

Asked by Abhisek | 11 months ago |  139

1 Answer

Solution :-

The older tissues show deficiency symptoms when the elements that are actively mobilised are exported to the young part. For example, the senescent leaves show the deficiency symptoms of nitrogen, potassium and magnesium. In the older leaves, these elements are available for mobilising to younger leave due to the breakdown of biomolecules containing these elements. When the elements are relatively immobile from the older parts, the young tissues show deficiency symptoms. For example, the structural component of the cell that contains elements like sulphur and calcium does not easily mobilise to the younger tissues.

Answered by Pragya Singh | 11 months ago

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