why does guttation occur even it is harmful for plant ?

Hello Praveen,

Guttation is a process in plants during which water on the leaf edges is driven out via special pores (hydathodes) as a result of high root pressure.

The guttation water largely derives from the xylem system of the plant and thus mainly consists of water, but could also contain small amounts of the nutrients and dissolved sugars.

Guttation is  basically harmless, provided that  the  water drips from  the  leaf. If this  does  not  happen  and  the  water vaporizes on  the  leaf, then this may have a  harmful  effect because a layer of sugars and salts  will  remain on  the  leaf surface as small white spots.

But to balance out the water and nutrients taken in, guttation becomes a necessary evil.

Hope this helps you. We wish you the best for your future endeavours!

Regards

Hello Praveen,

The question you posed is the very interesting one:

The plant doesn’t always need the same amount of moisture. At night, when temperatures are cool or when the air is humid, less moisture evaporates from the leaves. However, the same amount of moisture is still drawn up from the roots. The pressure of this new moisture pushes out the moisture that is already in the leaves, resulting in those little beads of water.

As how we sweats because of the weather conditions around us. but we are unable to stop our sweat. losing water from our body is not good but, the mechanism is in that way.

Hope it helps.

All the best.