In this article we will discuss about:- 1. Meaning of Essential Elements 2. Sources of Essential Elements for Plants 3. Role 4. Deficiency Symptoms. Meaning of Essential Elements: An essential element is known, without which the plant cannot complete its life cycle. It has clear physiological role to play. The important criteria for an essential element are as follows: (i) [...]
In this article we will discuss about:- 1. Meaning of Solute 2. Passive Absorption of Solute 3. Active Absorption 4. Ion Movement into the Root. Meaning of Solute: Besides water, the plant absorbs from the environment considerable quantities of mineral salts, gases and various other salts. All these are absorbed in the form of aqueous solutions. The mineral salts or [...]
In this article we will discuss about the translocation of solutes in plants. Upward Translocation of Solutes: Here the solutes or term mineral salt is used for those substances which contain nitrogen, sulphur and phosphorus in inorganic and organic combinations. The upward translocation of nitrogen, sulphur and phosphorus occurs in both organic and inorganic combination. Earlier this was universally agreed [...]