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 | 1 year agoIn the mineral nutrition studies using hydroponics why is the purification of water and nutrient salts plays important role?
Which of the following statements are true? If false, correct them.
i. Boron deficiency leads to stout axis.
ii. Cell needs every mineral element that is present in it.
iii. Nitrogen is highly immobile in the plants in the form of nutrient element.
iv. The micronutrients are required only in trace quantities so it is very easy to establish their essentiality.
In the formation of a root nodule, what are the steps involved?
In what conditions atmospheric nitrogen can be fixed by Rhizobium and explain their role in Nitrogen-fixation?